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0F | 0C
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Tywydd 15 Diwrnod - Wiltshire

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41%

Siawns o Law

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11oC

Pwynt Gwlith

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92%

Lleithder

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108

Ozone

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8.07 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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12%

Siawns o Law

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11oC

Pwynt Gwlith

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86%

Lleithder

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97

Ozone

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2.4 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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05:05 AM

Codiad haul

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08:05 PM

Machlud

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1%

Siawns o Law

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11oC

Pwynt Gwlith

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78%

Lleithder

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98

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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34%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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6%

Siawns o Law

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13oC

Pwynt Gwlith

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87%

Lleithder

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92

Ozone

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0.12 mm

Gwlybaniaeth

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102500 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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79%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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10%

Siawns o Law

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14oC

Pwynt Gwlith

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84%

Lleithder

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98

Ozone

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0.53 mm

Gwlybaniaeth

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102700 hPa

Pwysedd

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Gogledd

Cyfeiriad y Gwynt

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30%

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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13oC

Pwynt Gwlith

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83%

Lleithder

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90

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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82%

Gorchudd Cwmwl

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05:05 AM

Codiad haul

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09:05 PM

Machlud

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18%

Siawns o Law

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13oC

Pwynt Gwlith

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85%

Lleithder

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106

Ozone

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0.13 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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9%

Siawns o Law

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13oC

Pwynt Gwlith

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87%

Lleithder

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102

Ozone

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0.68 mm

Gwlybaniaeth

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102100 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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55%

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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10oC

Pwynt Gwlith

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85%

Lleithder

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99

Ozone

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2.39 mm

Gwlybaniaeth

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102300 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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83%

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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7oC

Pwynt Gwlith

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72%

Lleithder

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103

Ozone

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0.12 mm

Gwlybaniaeth

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102600 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

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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12oC

Pwynt Gwlith

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84%

Lleithder

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90

Ozone

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1.05 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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04:05 AM

Codiad haul

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09:05 PM

Machlud

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37%

Siawns o Law

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8oC

Pwynt Gwlith

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78%

Lleithder

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109

Ozone

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4.24 mm

Gwlybaniaeth

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101400 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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8%

Siawns o Law

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8oC

Pwynt Gwlith

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80%

Lleithder

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91

Ozone

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1.21 mm

Gwlybaniaeth

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102000 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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90%

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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8oC

Pwynt Gwlith

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89%

Lleithder

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104

Ozone

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8.99 mm

Gwlybaniaeth

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101800 hPa

Pwysedd

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Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

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91%

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
light rain
light rain
broken clouds
light rain
light rain
light rain
Tymheredd Uchaf
Tymheredd Isafswm
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4.33 mm
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8.07 mm
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2.4 mm
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0 mm
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0.12 mm
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0.53 mm
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0 mm
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0.13 mm
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0.68 mm
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2.39 mm
Gwlybaniaeth
Siawns o Law

18/05/2026

13o
rain
Glaw ysgafn
7oC / 13oC | teimlo fel 13oC
100% glaw | 0.43 mm
Lleithder 67%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 16.26 mph
Mynegai UV 2.18
Codiad Haul / Machlud Haul 05:12 AM / 08:55 PM
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