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0F | 0C
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Tywydd 20 Diwrnod - Test Valley

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46%

Siawns o Law

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11oC

Pwynt Gwlith

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91%

Lleithder

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97

Ozone

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6.8 mm

Gwlybaniaeth

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100900 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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97%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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6%

Siawns o Law

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11oC

Pwynt Gwlith

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85%

Lleithder

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105

Ozone

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1.25 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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64%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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5%

Siawns o Law

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11oC

Pwynt Gwlith

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80%

Lleithder

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102

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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32%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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0%

Siawns o Law

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13oC

Pwynt Gwlith

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88%

Lleithder

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97

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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69%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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8%

Siawns o Law

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14oC

Pwynt Gwlith

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85%

Lleithder

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91

Ozone

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0.46 mm

Gwlybaniaeth

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102700 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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09:05 PM

Machlud

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9%

Siawns o Law

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14oC

Pwynt Gwlith

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86%

Lleithder

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96

Ozone

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0.11 mm

Gwlybaniaeth

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102900 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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84%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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14%

Siawns o Law

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13oC

Pwynt Gwlith

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86%

Lleithder

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103

Ozone

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0.11 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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86%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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5%

Siawns o Law

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13oC

Pwynt Gwlith

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86%

Lleithder

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94

Ozone

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0.41 mm

Gwlybaniaeth

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102100 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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49%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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24%

Siawns o Law

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11oC

Pwynt Gwlith

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87%

Lleithder

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92

Ozone

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3.83 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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89%

Gorchudd Cwmwl

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05:05 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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72%

Lleithder

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93

Ozone

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0.21 mm

Gwlybaniaeth

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102600 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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20%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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7%

Siawns o Law

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12oC

Pwynt Gwlith

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85%

Lleithder

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97

Ozone

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0.63 mm

Gwlybaniaeth

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102300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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82%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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31%

Siawns o Law

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9oC

Pwynt Gwlith

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75%

Lleithder

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103

Ozone

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3.1 mm

Gwlybaniaeth

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101500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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34%

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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9oC

Pwynt Gwlith

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80%

Lleithder

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109

Ozone

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1.49 mm

Gwlybaniaeth

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102000 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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78%

Siawns o Law

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9oC

Pwynt Gwlith

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88%

Lleithder

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101

Ozone

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9.88 mm

Gwlybaniaeth

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101800 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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94%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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85%

Siawns o Law

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6oC

Pwynt Gwlith

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78%

Lleithder

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97

Ozone

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23.66 mm

Gwlybaniaeth

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102000 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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93%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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86%

Siawns o Law

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10oC

Pwynt Gwlith

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93%

Lleithder

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109

Ozone

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40.42 mm

Gwlybaniaeth

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101000 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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53%

Siawns o Law

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11oC

Pwynt Gwlith

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90%

Lleithder

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105

Ozone

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8.11 mm

Gwlybaniaeth

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101600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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94%

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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12oC

Pwynt Gwlith

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92%

Lleithder

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100

Ozone

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7.47 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

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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90%

Siawns o Law

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14oC

Pwynt Gwlith

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93%

Lleithder

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110

Ozone

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14.21 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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71%

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
scattered clouds
broken clouds
light rain
light rain
light rain
light rain
light rain
Tymheredd Uchaf
Tymheredd Isafswm
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3.78 mm
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6.8 mm
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1.25 mm
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0 mm
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0 mm
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0.46 mm
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0.11 mm
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0.11 mm
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0.41 mm
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3.83 mm
Gwlybaniaeth
Siawns o Law

18/05/2026

11o
rain
Glaw ysgafn
7oC / 13oC | teimlo fel 10oC
88% glaw | 0.24 mm
Lleithder 74%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 12.55 mph
Mynegai UV 2.06
Codiad Haul / Machlud Haul 05:11 AM / 08:53 PM
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