weather365
0F | 0C
weather365

Tywydd 15 Diwrnod - Hertsmere

weather365.com

43%

Siawns o Law

weather365.com

11oC

Pwynt Gwlith

weather365.com

94%

Lleithder

weather365.com

105

Ozone

weather365.com

7.67 mm

Gwlybaniaeth

weather365.com

100900 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

96%

Gorchudd Cwmwl

weather365.com

05:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

8%

Siawns o Law

weather365.com

11oC

Pwynt Gwlith

weather365.com

86%

Lleithder

weather365.com

92

Ozone

weather365.com

1.62 mm

Gwlybaniaeth

weather365.com

102200 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

70%

Gorchudd Cwmwl

weather365.com

05:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

1%

Siawns o Law

weather365.com

11oC

Pwynt Gwlith

weather365.com

81%

Lleithder

weather365.com

105

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

102900 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

67%

Gorchudd Cwmwl

weather365.com

05:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

1%

Siawns o Law

weather365.com

12oC

Pwynt Gwlith

weather365.com

80%

Lleithder

weather365.com

107

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

102400 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

52%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

6%

Siawns o Law

weather365.com

14oC

Pwynt Gwlith

weather365.com

82%

Lleithder

weather365.com

94

Ozone

weather365.com

1.94 mm

Gwlybaniaeth

weather365.com

102300 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

34%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

5%

Siawns o Law

weather365.com

12oC

Pwynt Gwlith

weather365.com

73%

Lleithder

weather365.com

91

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

102700 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

10%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

08:05 PM

Machlud

weather365.com

1%

Siawns o Law

weather365.com

12oC

Pwynt Gwlith

weather365.com

79%

Lleithder

weather365.com

103

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

103100 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

79%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

4%

Siawns o Law

weather365.com

9oC

Pwynt Gwlith

weather365.com

72%

Lleithder

weather365.com

93

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

103100 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

15%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

5%

Siawns o Law

weather365.com

10oC

Pwynt Gwlith

weather365.com

74%

Lleithder

weather365.com

105

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

103000 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

13%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

3%

Siawns o Law

weather365.com

10oC

Pwynt Gwlith

weather365.com

76%

Lleithder

weather365.com

96

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

103000 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

39%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

4%

Siawns o Law

weather365.com

11oC

Pwynt Gwlith

weather365.com

76%

Lleithder

weather365.com

99

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

102900 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

10%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

2%

Siawns o Law

weather365.com

10oC

Pwynt Gwlith

weather365.com

72%

Lleithder

weather365.com

95

Ozone

weather365.com

0 mm

Gwlybaniaeth

weather365.com

102800 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

40%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

13%

Siawns o Law

weather365.com

12oC

Pwynt Gwlith

weather365.com

74%

Lleithder

weather365.com

109

Ozone

weather365.com

0.3 mm

Gwlybaniaeth

weather365.com

102500 hPa

Pwysedd

weather365.com

Gogledd

Cyfeiriad y Gwynt

weather365.com

17%

Gorchudd Cwmwl

weather365.com

04:05 AM

Codiad haul

weather365.com

09:05 PM

Machlud

weather365.com

9%

Siawns o Law

weather365.com

12oC

Pwynt Gwlith

weather365.com

76%

Lleithder

weather365.com

93

Ozone

weather365.com

0.19 mm

Gwlybaniaeth

weather365.com

102200 hPa

Pwysedd

weather365.com

Gogledd Gogledd Ddwyrain

Cyfeiriad y Gwynt

weather365.com

32%

Gorchudd Cwmwl

weather365.com

04:06 AM

Codiad haul

weather365.com

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
broken clouds
broken clouds
light rain
sky is clear
broken clouds
few clouds
few clouds
Tymheredd Uchaf
Tymheredd Isafswm
weather365
3.84 mm
weather365
7.67 mm
weather365
1.62 mm
weather365
0 mm
weather365
0 mm
weather365
1.94 mm
weather365
0 mm
weather365
0 mm
weather365
0 mm
weather365
0 mm
Gwlybaniaeth
Siawns o Law

18/05/2026

13o
rain
Glaw ysgafn
7oC / 13oC | teimlo fel 12oC
100% glaw | 0.4 mm
Lleithder 67%
Gweledigaeth 6.21 miles
Cyflymder y Gwynt 13.09 mph
Mynegai UV 3.23
Codiad Haul / Machlud Haul 05:04 AM / 08:50 PM
up arrow