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0F | 0C
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Tywydd 15 Diwrnod - Merton

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4%

Siawns o Law

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13oC

Pwynt Gwlith

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82%

Lleithder

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108

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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27%

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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14oC

Pwynt Gwlith

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81%

Lleithder

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94

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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34%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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08:05 PM

Machlud

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4%

Siawns o Law

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14oC

Pwynt Gwlith

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81%

Lleithder

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107

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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9%

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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16oC

Pwynt Gwlith

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81%

Lleithder

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102

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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12%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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08:05 PM

Machlud

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4%

Siawns o Law

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16oC

Pwynt Gwlith

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81%

Lleithder

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108

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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24%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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16%

Siawns o Law

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14oC

Pwynt Gwlith

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87%

Lleithder

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94

Ozone

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0.3 mm

Gwlybaniaeth

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102800 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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52%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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0%

Siawns o Law

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9oC

Pwynt Gwlith

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75%

Lleithder

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90

Ozone

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0 mm

Gwlybaniaeth

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102800 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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27%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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2%

Siawns o Law

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9oC

Pwynt Gwlith

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73%

Lleithder

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102

Ozone

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0 mm

Gwlybaniaeth

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102400 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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37%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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19%

Siawns o Law

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8oC

Pwynt Gwlith

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70%

Lleithder

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96

Ozone

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0.35 mm

Gwlybaniaeth

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102000 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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45%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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2%

Siawns o Law

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5oC

Pwynt Gwlith

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64%

Lleithder

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94

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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27%

Gorchudd Cwmwl

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04:05 AM

Codiad haul

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09:05 PM

Machlud

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1%

Siawns o Law

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6oC

Pwynt Gwlith

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66%

Lleithder

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93

Ozone

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0 mm

Gwlybaniaeth

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102300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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14%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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42%

Siawns o Law

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8oC

Pwynt Gwlith

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76%

Lleithder

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109

Ozone

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7.86 mm

Gwlybaniaeth

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101500 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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47%

Siawns o Law

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12oC

Pwynt Gwlith

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96%

Lleithder

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101

Ozone

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8.16 mm

Gwlybaniaeth

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101500 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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75%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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0%

Siawns o Law

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8oC

Pwynt Gwlith

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73%

Lleithder

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99

Ozone

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0 mm

Gwlybaniaeth

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101200 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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19%

Gorchudd Cwmwl

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04:06 AM

Codiad haul

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09:06 PM

Machlud

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
Dydd Sadwrn - 30
scattered clouds
scattered clouds
scattered clouds
sky is clear
few clouds
few clouds
light rain
scattered clouds
scattered clouds
light rain
Tymheredd Uchaf
Tymheredd Isafswm
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0 mm
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0 mm
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0 mm
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0 mm
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0 mm
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0 mm
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0.3 mm
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0 mm
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0 mm
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0.35 mm
Gwlybaniaeth
Siawns o Law

21/05/2026

12o
cloudy
Cymylau gwasgaredig
12oC / 23oC | teimlo fel 12oC
0% glaw | 0 mm
Lleithder 84%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 4.63 mph
Mynegai UV 0
Codiad Haul / Machlud Haul 05:01 AM / 08:53 PM
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