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Merthyr Tydfil

  • Heavy shower day 4 °C 2 °C
  • Sunny day 5 °C 0 °C
  • Cloudy 5 °C 2 °C
  • Light rain 8 °C 6 °C
  • Cloudy 9 °C 6 °C
  • Light rain 10 °C 8 °C
  • Drizzle 9 °C 4 °C
Now 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Light rain Heavy shower night Heavy shower night Light shower day Heavy shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Heavy rain Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night
50% 70% 70% 40% 60% 40% 40% 40% 40% 40% 50% 80% 50% 50% 40% 40% 40% 40%
Temperature (°C)
3 ° 3 ° 3 ° 3 ° 2 ° 3 ° 3 ° 4 ° 4 ° 3 ° 3 ° 3 ° 3 ° 3 ° 4 ° 3 ° 3 ° 3 °
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Feels like temperature (°C) Expand
0 ° -2 ° -2 ° -2 ° -2 ° -1 ° -1 ° -1 ° 0 ° 0 ° 0 ° 0 ° 0 ° -1 ° -1 ° -1 ° -1 ° 0 °
Wind direction, speed & gust (mph) Expand
W 10 30 W 14 34 W 13 31 W 13 31 W 12 29 W 12 27 W 13 28 W 12 28 W 11 27 W 11 26 W 10 27 W 9 24 W 10 25 WNW 12 29 WNW 11 28 WNW 11 28 WNW 11 27 WNW 10 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG E VG E G VG VG E E VG G G VG E VG E VG VG
Humidity Expand
84% 85% 89% 87% 89% 85% 85% 83% 83% 86% 88% 92% 92% 89% 90% 90% 91% 91%
UV index Expand
1 1 1 1 1 1 1
Sunrise: 08:13 Sunset: 16:03 Moon phase: Waning crescent Air pollution: 3
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Light shower night Light shower night Light rain Light rain Light rain Cloudy Partly cloudy night Partly cloudy night Partly cloudy night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night
40% 40% 50% 60% 50% 20% 10% 10% 10% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5%
Temperature (°C)
4 ° 4 ° 4 ° 4 ° 4 ° 3 ° 3 ° 3 ° 2 ° 2 ° 3 ° 4 ° 4 ° 5 ° 5 ° 5 ° 4 ° 3 ° 3 ° 2 ° 2 ° 1 ° 1 ° 1 °
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Feels like temperature (°C) Expand
0 ° 0 ° 0 ° 0 ° 0 ° -1 ° -1 ° -2 ° -1 ° -1 ° 0 ° 0 ° 1 ° 2 ° 2 ° 1 ° 1 ° 0 ° -1 ° -1 ° -2 ° -2 ° -2 ° -2 °
Wind direction, speed & gust (mph) Expand
WNW 9 25 WNW 9 25 WNW 10 25 WNW 11 28 NW 10 27 NNW 13 33 NNW 12 30 NNW 11 29 NNW 10 25 NNW 9 23 NNW 9 24 NNW 10 26 NNW 10 25 NNW 9 23 NNW 9 23 NNW 8 23 NNW 8 22 NNW 9 23 NNW 9 23 NNW 9 23 NNW 8 21 NW 7 20 NW 7 20 NW 7 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E E VG G VG E E VG VG VG VG VG E E E VG VG VG VG VG VG VG VG VG
Humidity Expand
91% 89% 90% 90% 89% 87% 85% 85% 86% 84% 81% 79% 77% 77% 76% 78% 80% 81% 83% 84% 84% 85% 84% 88%
UV index Expand
1 1 1 1 1 1 1
Sunrise: 08:14 Sunset: 16:03 Moon phase: Waning crescent Air pollution: 2
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Clear night Clear night Partly cloudy night Sunny intervals Sunny intervals Cloudy Partly cloudy night Cloudy
<5% <5% <5% <5% 10% 10% <5% 10%
Temperature (°C)
1 ° 1 ° 1 ° 1 ° 4 ° 4 ° 3 ° 3 °
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Feels like temperature (°C) Expand
-2 ° -3 ° -3 ° -2 ° 1 ° 1 ° 1 ° 1 °
Wind direction, speed & gust (mph) Expand
NW 7 18 NW 7 17 NW 8 17 NW 7 14 WNW 8 18 WNW 8 17 WNW 7 14 WNW 6 12
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG G G VG VG G
Humidity Expand
89% 92% 92% 92% 86% 89% 93% 95%
UV index Expand
1 1 1
Sunrise: 08:15 Sunset: 16:03 Moon phase: Waning crescent Air pollution: 2
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Partly cloudy night Cloudy Cloudy Cloudy Cloudy Heavy rain Heavy rain Drizzle
<5% 10% 10% 20% 30% 90% 90% 40%
Temperature (°C)
3 ° 3 ° 3 ° 5 ° 7 ° 8 ° 8 ° 9 °
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Feels like temperature (°C) Expand
1 ° 1 ° 1 ° 2 ° 5 ° 5 ° 6 ° 6 °
Wind direction, speed & gust (mph) Expand
WNW 5 9 WNW 5 9 W 5 9 SSW 6 12 SW 10 21 SW 12 25 WSW 12 24 W 10 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M G G M P P
Humidity Expand
96% 97% 97% 96% 94% 95% 96% 97%
UV index Expand
1 1 1
Sunrise: 08:15 Sunset: 16:04 Moon phase: New Air pollution: 3
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Cloudy Cloudy Mist Cloudy Cloudy Cloudy Drizzle Drizzle
20% 20% 20% 10% 20% 50% 30% 30%
Temperature (°C)
8 ° 8 ° 7 ° 6 ° 8 ° 8 ° 7 ° 7 °
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Feels like temperature (°C) Expand
6 ° 6 ° 5 ° 5 ° 7 ° 7 ° 6 ° 5 °
Wind direction, speed & gust (mph) Expand
WNW 9 18 WNW 8 15 WNW 6 11 WNW 4 8 WNW 5 11 W 5 10 WSW 5 9 WSW 5 9
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M P M G G M P
Humidity Expand
96% 95% 96% 96% 93% 94% 97% 98%
UV index Expand
1 1 1
Sunrise: 08:16 Sunset: 16:04 Moon phase: New Air pollution: 3
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Drizzle Drizzle Drizzle Drizzle Light rain Drizzle Drizzle Drizzle
30% 30% 30% 30% 50% 50% 40% 40%
Temperature (°C)
7 ° 7 ° 8 ° 8 ° 9 ° 10 ° 9 ° 9 °
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Feels like temperature (°C) Expand
6 ° 6 ° 6 ° 7 ° 8 ° 8 ° 7 ° 7 °
Wind direction, speed & gust (mph) Expand
WSW 5 10 WSW 6 11 SW 6 11 WSW 6 12 SW 8 16 SW 8 17 SW 8 17 WSW 9 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M P P M M M M M
Humidity Expand
98% 98% 98% 98% 97% 97% 97% 97%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:04 Moon phase: New
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Drizzle Light rain Light rain Light rain Light rain Fog Fog Fog
40% 50% 50% 50% 50% 20% 20% 20%
Temperature (°C)
9 ° 9 ° 9 ° 9 ° 9 ° 9 ° 8 ° 6 °
Show detail Show detail
Feels like temperature (°C) Expand
7 ° 7 ° 7 ° 7 ° 7 ° 7 ° 6 ° 5 °
Wind direction, speed & gust (mph) Expand
SW 9 18 WSW 9 19 WSW 9 18 SW 9 17 SW 9 19 WNW 9 18 WNW 8 16 NW 7 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M G VP VP VP
Humidity Expand
97% 97% 97% 96% 94% 94% 96% 96%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:05 Moon phase: New

Issued at:

Forecast Summary

  • Regional
  • UK 5 days
  • UK 6-30 days

Wales

Headline:

Windy with sunshine and wintry showers.

Today:

After an icy start for some, there will sunny spells and scattered showers, these falling mostly as rain, sleet and hail at low levels, but with some snow on the hills. Feeling cold in the wind. Maximum temperature 8 °C.

Tonight:

The wintry showers will continue overnight, but will become increasingly confined to the north and west later, with clear spells, frost and ice developing. Remaining windy in the west. Minimum temperature -1 °C.

Friday:

It will be sunny for many on Friday, although one or two showers will continue in the north and west. Feeling chilly in the northerly wind. Maximum temperature 7 °C.

Outlook for Saturday to Monday:

Saturday looks rather cloudy with patchy rain and hill snow. Milder on Sunday, but with wet and windy weather arriving. Monday should be brighter and mostly dry. Perhaps patchy fog.

Updated: 01:14 on Thu 14 Dec 2017 GMT

UK forecast for the next 5 days

Headline:

Sunshine and scattered showers, some wintry.

Today:

There will be sunshine and wintry showers, with some longer spells of rain, or snow at times in the west. The best of the sunshine will be in the east. Staying windy in the south, but winds easing further north.

Tonight:

A mix of clear spells and showers overnight, the showers wintry in places. Strong winds will affect western and later northern areas. Frost, ice and patchy freezing fog forming.

Friday:

After starting cloudy in some areas, Friday will be a cold day with plenty of sunshine. However, brisk northerly winds will bring a scattering of showers to windward coasts throughout.

Outlook for Saturday to Monday:

Bright, but chilly in the east Saturday. Patchy rain further west. Turning milder, wet and windy Sunday. Fine for many Monday, with patchy fog, but windy and damp far north.

Updated: 01:09 on Thu 14 Dec 2017 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Monday 18 Dec 2017 to Wednesday 27 Dec 2017:

Monday should be a dry and bright day across the country, however cloud and outbreaks of rain could spread across the north overnight and into Tuesday morning. Tuesday will probably stay dry and fine in the south though. Temperatures are likely to vary around normal in southern parts, but it could turn milder across the north Through the rest of the period, milder but unsettled conditions are likely persist in northern parts with bands of rain and hill snow interspersed by drier interludes. It may become very windy at times later next week with gales or severe gales in places. Further south it is more likely that largely settled conditions will dominate with overnight frosts and a risk of fog. However, brief wet and cloudy spells are possible here too.

UK Outlook for Thursday 28 Dec 2017 to Thursday 11 Jan 2018:

Generally changeable conditions are likely to extend further south through the end of December. Bands of rain are likely to move across the UK, interspersed with brighter showery conditions. Showers are likely to turn wintry at times, particularly in the north. It will often be windy with temperatures varying around normal. As we head into the start of January there is large uncertainty. However, a generally more settled spell of weather could become established. This would likely bring a mixture of colder and drier conditions with brief interludes of milder, wetter and windier weather. Snow is likely at times, especially in northern and central parts of the UK, as well as an increased likelihood of overnight frosts.

Updated: 01:09 on Thu 14 Dec 2017 GMT

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