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0F | 0C
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Tywydd 30 Diwrnod - Guildford

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31%

Siawns o Law

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11oC

Pwynt Gwlith

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93%

Lleithder

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104

Ozone

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5.89 mm

Gwlybaniaeth

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101000 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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99%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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16%

Siawns o Law

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12oC

Pwynt Gwlith

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86%

Lleithder

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98

Ozone

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1.41 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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62%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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3%

Siawns o Law

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11oC

Pwynt Gwlith

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80%

Lleithder

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91

Ozone

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0 mm

Gwlybaniaeth

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102800 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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24%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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3%

Siawns o Law

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13oC

Pwynt Gwlith

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85%

Lleithder

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98

Ozone

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0 mm

Gwlybaniaeth

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102600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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53%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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12%

Siawns o Law

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14oC

Pwynt Gwlith

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84%

Lleithder

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103

Ozone

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0.68 mm

Gwlybaniaeth

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102700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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27%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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3%

Siawns o Law

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14oC

Pwynt Gwlith

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86%

Lleithder

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99

Ozone

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0 mm

Gwlybaniaeth

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102900 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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78%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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3%

Siawns o Law

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13oC

Pwynt Gwlith

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85%

Lleithder

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96

Ozone

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0 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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83%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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08:05 PM

Machlud

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12%

Siawns o Law

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13oC

Pwynt Gwlith

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82%

Lleithder

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105

Ozone

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0.72 mm

Gwlybaniaeth

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102100 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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43%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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43%

Siawns o Law

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13oC

Pwynt Gwlith

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92%

Lleithder

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110

Ozone

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6.74 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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98%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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8%

Siawns o Law

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8oC

Pwynt Gwlith

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71%

Lleithder

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108

Ozone

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0.35 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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17%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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14%

Siawns o Law

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12oC

Pwynt Gwlith

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85%

Lleithder

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109

Ozone

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0.26 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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69%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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9%

Siawns o Law

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8oC

Pwynt Gwlith

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72%

Lleithder

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96

Ozone

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2.96 mm

Gwlybaniaeth

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101400 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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42%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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34%

Siawns o Law

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9oC

Pwynt Gwlith

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83%

Lleithder

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91

Ozone

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3.72 mm

Gwlybaniaeth

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101900 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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88%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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76%

Siawns o Law

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9oC

Pwynt Gwlith

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89%

Lleithder

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99

Ozone

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10.56 mm

Gwlybaniaeth

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101700 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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98%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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83%

Siawns o Law

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7oC

Pwynt Gwlith

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83%

Lleithder

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90

Ozone

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31.57 mm

Gwlybaniaeth

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101800 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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97%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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96%

Siawns o Law

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11oC

Pwynt Gwlith

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93%

Lleithder

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108

Ozone

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41.03 mm

Gwlybaniaeth

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101000 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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99%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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46%

Siawns o Law

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11oC

Pwynt Gwlith

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88%

Lleithder

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93

Ozone

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6.49 mm

Gwlybaniaeth

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101600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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95%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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53%

Siawns o Law

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12oC

Pwynt Gwlith

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94%

Lleithder

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105

Ozone

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8.7 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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89%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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87%

Siawns o Law

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14oC

Pwynt Gwlith

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96%

Lleithder

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110

Ozone

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12.21 mm

Gwlybaniaeth

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101200 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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86%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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67%

Siawns o Law

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14oC

Pwynt Gwlith

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95%

Lleithder

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105

Ozone

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11.93 mm

Gwlybaniaeth

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101200 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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80%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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8%

Siawns o Law

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13oC

Pwynt Gwlith

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91%

Lleithder

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92

Ozone

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1.89 mm

Gwlybaniaeth

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101500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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74%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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23%

Siawns o Law

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13oC

Pwynt Gwlith

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87%

Lleithder

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94

Ozone

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4.22 mm

Gwlybaniaeth

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101700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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88%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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12%

Siawns o Law

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13oC

Pwynt Gwlith

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85%

Lleithder

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109

Ozone

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0.9 mm

Gwlybaniaeth

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101700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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32%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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14%

Siawns o Law

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13oC

Pwynt Gwlith

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82%

Lleithder

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94

Ozone

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0.5 mm

Gwlybaniaeth

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101600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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25%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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5%

Siawns o Law

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13oC

Pwynt Gwlith

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82%

Lleithder

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90

Ozone

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0.67 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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85%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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5%

Siawns o Law

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13oC

Pwynt Gwlith

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84%

Lleithder

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98

Ozone

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2.34 mm

Gwlybaniaeth

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100800 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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49%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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79%

Siawns o Law

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14oC

Pwynt Gwlith

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90%

Lleithder

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99

Ozone

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9.36 mm

Gwlybaniaeth

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100500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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62%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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81%

Siawns o Law

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13oC

Pwynt Gwlith

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89%

Lleithder

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90

Ozone

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14.39 mm

Gwlybaniaeth

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100500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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78%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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36%

Siawns o Law

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11oC

Pwynt Gwlith

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76%

Lleithder

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105

Ozone

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4.97 mm

Gwlybaniaeth

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101100 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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22%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

Dydd Llun - 18
Dydd Mawrth - 19
Dydd Mercher - 20
Dydd Iau - 21
Dydd Gwener - 22
Dydd Sadwrn - 23
Dydd Sul - 24
Dydd Llun - 25
Dydd Mawrth - 26
Dydd Mercher - 27
light rain
light rain
light rain
few clouds
broken clouds
light rain
broken clouds
broken clouds
light rain
light rain
Tymheredd Uchaf
Tymheredd Isafswm
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3.43 mm
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5.89 mm
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1.41 mm
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0 mm
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0 mm
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0.68 mm
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0 mm
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0 mm
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0.72 mm
weather365
6.74 mm
Gwlybaniaeth
Siawns o Law

18/05/2026

13o
rain
Glaw ysgafn
8oC / 14oC | teimlo fel 12oC
100% glaw | 0.29 mm
Lleithder 64%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 13.04 mph
Mynegai UV 4.06
Codiad Haul / Machlud Haul 05:07 AM / 08:50 PM
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