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0F | 0C
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Tywydd 20 Diwrnod - Windsor and Maidenhead

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53%

Siawns o Law

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11oC

Pwynt Gwlith

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94%

Lleithder

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107

Ozone

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6.72 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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87%

Lleithder

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101

Ozone

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2.48 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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70%

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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11oC

Pwynt Gwlith

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78%

Lleithder

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105

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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4%

Siawns o Law

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13oC

Pwynt Gwlith

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84%

Lleithder

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93

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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58%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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08:05 PM

Machlud

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19%

Siawns o Law

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14oC

Pwynt Gwlith

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82%

Lleithder

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109

Ozone

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1.16 mm

Gwlybaniaeth

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102700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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29%

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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14oC

Pwynt Gwlith

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84%

Lleithder

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110

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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80%

Gorchudd Cwmwl

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04:05 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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84%

Lleithder

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108

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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80%

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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14oC

Pwynt Gwlith

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81%

Lleithder

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110

Ozone

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1.23 mm

Gwlybaniaeth

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102100 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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44%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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52%

Siawns o Law

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12oC

Pwynt Gwlith

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92%

Lleithder

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90

Ozone

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6.01 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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97%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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17%

Siawns o Law

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8oC

Pwynt Gwlith

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70%

Lleithder

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101

Ozone

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0.26 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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15%

Siawns o Law

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13oC

Pwynt Gwlith

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85%

Lleithder

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92

Ozone

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0.39 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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74%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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29%

Siawns o Law

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8oC

Pwynt Gwlith

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74%

Lleithder

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107

Ozone

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3.72 mm

Gwlybaniaeth

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101400 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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49%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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40%

Siawns o Law

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9oC

Pwynt Gwlith

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84%

Lleithder

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110

Ozone

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3.58 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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74%

Siawns o Law

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9oC

Pwynt Gwlith

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90%

Lleithder

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99

Ozone

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9.99 mm

Gwlybaniaeth

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101800 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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97%

Siawns o Law

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7oC

Pwynt Gwlith

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84%

Lleithder

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95

Ozone

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27.51 mm

Gwlybaniaeth

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101900 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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95%

Siawns o Law

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11oC

Pwynt Gwlith

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94%

Lleithder

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98

Ozone

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38.72 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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56%

Siawns o Law

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12oC

Pwynt Gwlith

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90%

Lleithder

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106

Ozone

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7.95 mm

Gwlybaniaeth

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101600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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96%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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73%

Siawns o Law

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12oC

Pwynt Gwlith

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94%

Lleithder

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104

Ozone

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10.16 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

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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92%

Siawns o Law

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15oC

Pwynt Gwlith

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96%

Lleithder

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90

Ozone

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12.33 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

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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3.74 mm
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6.72 mm
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2.48 mm
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0 mm
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0 mm
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1.16 mm
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0 mm
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0 mm
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1.23 mm
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6.01 mm
Gwlybaniaeth
Siawns o Law

18/05/2026

12o
rain
Glaw ysgafn
8oC / 15oC | teimlo fel 12oC
33% glaw | 0.13 mm
Lleithder 69%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 11.27 mph
Mynegai UV 0.28
Codiad Haul / Machlud Haul 05:07 AM / 08:51 PM
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