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0F | 0C
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Tywydd 20 Diwrnod - Vale of Glamorgan

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0%

Siawns o Law

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10oC

Pwynt Gwlith

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76%

Lleithder

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110

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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59%

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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13oC

Pwynt Gwlith

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83%

Lleithder

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102

Ozone

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0.28 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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75%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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4%

Siawns o Law

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13oC

Pwynt Gwlith

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78%

Lleithder

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91

Ozone

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0 mm

Gwlybaniaeth

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102300 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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42%

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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78%

Lleithder

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90

Ozone

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0 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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13%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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4%

Siawns o Law

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7oC

Pwynt Gwlith

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68%

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 Gogledd Ddwyrain

Cyfeiriad y Gwynt

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42%

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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8oC

Pwynt Gwlith

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70%

Lleithder

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95

Ozone

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0.37 mm

Gwlybaniaeth

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103300 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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25%

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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7oC

Pwynt Gwlith

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67%

Lleithder

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95

Ozone

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0.97 mm

Gwlybaniaeth

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103300 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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36%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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3%

Siawns o Law

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5oC

Pwynt Gwlith

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66%

Lleithder

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90

Ozone

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0 mm

Gwlybaniaeth

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103600 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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11%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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0%

Siawns o Law

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5oC

Pwynt Gwlith

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66%

Lleithder

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110

Ozone

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0 mm

Gwlybaniaeth

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103500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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18%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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3%

Siawns o Law

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4oC

Pwynt Gwlith

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64%

Lleithder

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95

Ozone

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0 mm

Gwlybaniaeth

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103400 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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18%

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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3oC

Pwynt Gwlith

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60%

Lleithder

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102

Ozone

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0 mm

Gwlybaniaeth

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103200 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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28%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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20%

Siawns o Law

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6oC

Pwynt Gwlith

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69%

Lleithder

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96

Ozone

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0.17 mm

Gwlybaniaeth

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102700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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47%

Gorchudd Cwmwl

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05:06 AM

Codiad haul

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09:06 PM

Machlud

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13%

Siawns o Law

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11oC

Pwynt Gwlith

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90%

Lleithder

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103

Ozone

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1.13 mm

Gwlybaniaeth

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102100 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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92%

Gorchudd Cwmwl

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05:06 AM

Codiad haul

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09:06 PM

Machlud

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14%

Siawns o Law

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12oC

Pwynt Gwlith

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83%

Lleithder

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108

Ozone

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2.73 mm

Gwlybaniaeth

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102200 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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65%

Gorchudd Cwmwl

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05:06 AM

Codiad haul

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09:06 PM

Machlud

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33%

Siawns o Law

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13oC

Pwynt Gwlith

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91%

Lleithder

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93

Ozone

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4.33 mm

Gwlybaniaeth

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101500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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92%

Gorchudd Cwmwl

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05:06 AM

Codiad haul

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09:06 PM

Machlud

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41%

Siawns o Law

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10oC

Pwynt Gwlith

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79%

Lleithder

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110

Ozone

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7.11 mm

Gwlybaniaeth

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101300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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83%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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10%

Siawns o Law

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11oC

Pwynt Gwlith

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85%

Lleithder

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107

Ozone

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1.64 mm

Gwlybaniaeth

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101900 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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46%

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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7oC

Pwynt Gwlith

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69%

Lleithder

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101

Ozone

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0.54 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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28%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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3%

Siawns o Law

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6oC

Pwynt Gwlith

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61%

Lleithder

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110

Ozone

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0 mm

Gwlybaniaeth

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102700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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20%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

Dydd Mercher - 20
Dydd Iau - 21
Dydd Gwener - 22
Dydd Sadwrn - 23
Dydd Sul - 24
Dydd Llun - 25
Dydd Mawrth - 26
Dydd Mercher - 27
Dydd Iau - 28
Dydd Gwener - 29
light rain
broken clouds
light rain
scattered clouds
few clouds
scattered clouds
light rain
light rain
few clouds
few clouds
Tymheredd Uchaf
Tymheredd Isafswm
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1.64 mm
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0 mm
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0.28 mm
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0 mm
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0 mm
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0 mm
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0.37 mm
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0.97 mm
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0 mm
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0 mm
Gwlybaniaeth
Siawns o Law

20/05/2026

14o
rain
Glaw ysgafn
11oC / 15oC | teimlo fel 14oC
76% glaw | 0.12 mm
Lleithder 87%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 18.01 mph
Mynegai UV 2.68
Codiad Haul / Machlud Haul 05:15 AM / 09:05 PM
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