Close window
Close window
This section of the new site isn't ready yet. We've brought you back to the current site.
We have been working on a new site. Want to take a look?

Alwen Reservoir weather

  • Cloudy 6 °C

    6 °C

  • Heavy rain 8 °C

    4 °C

  • Cloudy 5 °C

    4 °C

  • Light shower day 5 °C

    4 °C

  • Light rain 7 °C

    5 °C

  • Cloudy 7 °C

    4 °C

  • Heavy rain 8 °C

    6 °C

Monday (Monday 17 December 2018)
Now 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Warnings
Cloudy Cloudy Cloudy Light shower day Light rain Light rain Light rain Light shower night Cloudy Cloudy Cloudy Cloudy
10% 10% 10% 40% 60% 60% 60% 40% 10% 10% 10% 10%
Temperature (°C)
5 ° 6 ° 6 ° 6 ° 6 ° 7 ° 7 ° 8 ° 8 ° 8 ° 8 ° 8 °
Show detail
Feels like temperature (°C)
2 ° 2 ° 2 ° 2 ° 2 ° 3 ° 3 ° 4 ° 4 ° 4 ° 4 ° 4 °
Wind direction, speed & gust (mph)
SSW 12 24 SSW 12 25 S 13 27 S 14 29 SSW 15 32 SSW 15 32 SSW 16 33 SSW 16 34 SSW 17 36 S 16 34 S 17 35 S 16 33
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG G G G VG VG VG E VG
Humidity
93% 92% 92% 94% 97% 97% 97% 96% 94% 92% 90% 88%
UV index
1 1 1 1
Sunrise: 08:23 Sunset: 15:57 Moon phase: First quarter Air pollution: 3
Tuesday (Tuesday 18 December 2018)
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
Warnings
Overcast Light rain Light rain Overcast Overcast Overcast Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Cloudy Cloudy Cloudy Light shower night Heavy rain
20% 40% 50% 10% 20% 20% 50% 60% ≥95% ≥95% ≥95% ≥95% 90% 90% 60% 60% 60% 50% 50% 20% 10% 20% 40% 80%
Temperature (°C)
8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 7 ° 7 ° 7 ° 7 ° 7 ° 6 ° 6 ° 6 ° 6 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 °
Show detail
Feels like temperature (°C)
4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 2 ° 2 ° 2 ° 2 ° 2 ° 2 °
Wind direction, speed & gust (mph)
S 15 31 S 15 32 S 16 34 S 17 36 S 18 38 S 20 42 S 22 44 S 23 46 S 22 46 S 22 46 S 21 43 S 19 39 S 17 35 SSW 13 28 SSW 12 26 SSW 9 20 SSW 9 19 SSW 8 18 SSW 9 19 SSW 8 19 SSW 8 18 SSW 8 19 SSW 9 20 SSW 9 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
E E VG VG E VG VG G G M M M M M G G VG VG VG VG VG VG VG G
Humidity
87% 89% 90% 88% 87% 88% 89% 89% 91% 93% 94% 96% 95% 95% 94% 95% 95% 95% 95% 94% 95% 95% 96% 97%
UV index
1 1 1 1 1 1 1
Sunrise: 08:24 Sunset: 15:58 Moon phase: Waxing gibbous Air pollution: 3
Wednesday (Wednesday 19 December 2018)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Heavy rain Light shower night Cloudy Cloudy Cloudy Light rain Light rain Heavy rain
80% 40% 10% 10% 10% 50% 50% 80%
Temperature (°C)
5 ° 5 ° 4 ° 4 ° 5 ° 5 ° 5 ° 5 °
Show detail
Feels like temperature (°C)
1 ° 2 ° 1 ° 0 ° 1 ° 1 ° 1 ° 1 °
Wind direction, speed & gust (mph)
SSW 9 22 SSW 9 20 SSW 9 20 SSW 11 24 SSW 13 27 SSW 13 29 SSW 13 28 SSW 12 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG G G M
Humidity
96% 96% 96% 94% 89% 90% 94% 95%
UV index
1 1 1
Sunrise: 08:24 Sunset: 15:58 Moon phase: Waxing gibbous Air pollution: 3
Thursday (Thursday 20 December 2018)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Light rain Light shower night Light shower night Light rain Light shower day Light shower day Light shower night Light rain
50% 40% 40% 50% 50% 50% 40% 50%
Temperature (°C)
5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 °
Show detail
Feels like temperature (°C)
1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 °
Wind direction, speed & gust (mph)
SW 12 24 SW 11 25 SW 11 23 WSW 11 22 WSW 12 26 WSW 12 25 WSW 11 23 WSW 11 23
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G M M G G
Humidity
95% 95% 95% 94% 94% 94% 96% 96%
UV index
1 1 1
Sunrise: 08:25 Sunset: 15:58 Moon phase: Waxing gibbous Air pollution: 3
Friday (Friday 21 December 2018)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Cloudy Cloudy Overcast Light rain Light rain Light rain Cloudy Heavy rain
10% 10% 20% 50% 60% 50% 20% 80%
Temperature (°C)
5 ° 5 ° 5 ° 4 ° 5 ° 6 ° 6 ° 6 °
Show detail
Feels like temperature (°C)
2 ° 2 ° 3 ° 2 ° 2 ° 3 ° 3 ° 3 °
Wind direction, speed & gust (mph)
WSW 9 18 SW 7 14 S 6 11 SSE 6 13 SSE 8 17 SW 11 24 SW 13 28 SW 11 23
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G M M G G G
Humidity
97% 97% 97% 97% 96% 96% 93% 96%
UV index
1 1 1
Sunrise: 08:26 Sunset: 15:59 Moon phase: Full Air pollution: 3
Saturday (Saturday 22 December 2018)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Light rain Light shower night Light rain Light rain Sunny intervals Cloudy Cloudy Cloudy
50% 50% 50% 50% 10% 10% 10% 10%
Temperature (°C)
7 ° 6 ° 6 ° 5 ° 7 ° 6 ° 5 ° 6 °
Show detail
Feels like temperature (°C)
3 ° 2 ° 2 ° 2 ° 4 ° 4 ° 3 ° 3 °
Wind direction, speed & gust (mph)
WSW 14 30 WSW 13 28 WSW 13 27 WSW 11 24 WSW 11 23 WSW 9 20 WSW 8 17 SW 7 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
M M M G G G G M
Humidity
96% 95% 95% 96% 92% 91% 96% 97%
UV index
1 1 1
Sunrise: 08:26 Sunset: 15:59 Moon phase: Full
Sunday (Sunday 23 December 2018)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Overcast Cloudy Light rain Heavy rain Heavy rain Heavy rain Light rain Light rain
20% 20% 50% 80% 80% 80% 60% 50%
Temperature (°C)
6 ° 6 ° 6 ° 7 ° 8 ° 8 ° 7 ° 7 °
Show detail
Feels like temperature (°C)
4 ° 4 ° 4 ° 5 ° 6 ° 6 ° 5 ° 5 °
Wind direction, speed & gust (mph)
SSW 6 13 SSW 6 13 SSW 6 12 SSW 6 13 SSW 7 15 SW 7 16 SW 8 17 SW 9 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G M P M M M M M
Humidity
97% 98% 98% 97% 95% 96% 97% 97%
UV index
1 1 1
Sunrise: 08:27 Sunset: 16:00 Moon phase: Full
< Alwen Reservoir last 24 hours Issued at:
  • Weather map
  • UK video forecast
Met Office
Updated:
Tiree Heavy shower day 56.497 -6.887
Birmingham Sunny intervals 52.486 -1.889
Glasgow Cloudy 55.864 -4.25
Manchester Sunny intervals 53.479 -2.247
Brighton Sunny day 50.822 -0.136
Dover Sunny day 51.126 1.318
Exeter Sunny intervals 50.718 -3.533
Lincoln Sunny day 53.23 -0.539
Norwich Sunny day 52.63 1.299
Peterborough Sunny day 52.569 -0.239
Swindon Cloudy 51.556 -1.778
York Sunny day 53.962 -1.079
Aberdeen Sunny intervals 57.15 -2.093
Pembroke Overcast 51.673 -4.908
Ullapool Cloudy 57.896 -5.16
Inverness Cloudy 57.478 -4.223
Kendal Cloudy 54.328 -2.745
Londonderry (Derry) Heavy rain 54.995 -7.323
Newtown (Powys) Cloudy 52.512 -3.312
Fort William Cloudy 56.82 -5.104
Belfast Light shower day 54.596 -5.93
Caernarfon Cloudy 53.139 -4.273
Camborne Cloudy 50.212 -5.294
Cardiff Cloudy 51.481 -3.178
Dumfries Cloudy 55.071 -3.604
Edinburgh Cloudy 55.953 -3.187
Lerwick Heavy shower day 60.154 -1.143
London Sunny day 51.508 -0.125
Newcastle Upon Tyne Cloudy 54.978 -1.616
Pitlochry Overcast 56.705 -3.728
Southampton Sunny intervals 50.909 -1.403
Stornoway Cloudy 58.211 -6.384
Wick (Highland) Sunny intervals 58.439 -3.092
  • Regional
  • UK 5 days
  • UK 6-30 days

Regional Forecast for Wales

Headline:

Fog and frost clearing to sunny spells today. Rain later.

Today:

Patches of fog and frost will clear to leave a dry morning on Monday with sunny spells. However, cloud will increase from the west this afternoon with patchy rain developing, chiefly across western parts of the country. Turning windy too. Maximum temperature 11 °C.

Tonight:

Monday night will be cloudy and windy with patchy rain, chiefly in the west. Rain turning heavier and more persistent later. Gales, perhaps severe in the west, although staying mild. Minimum temperature 9 °C.

Tuesday:

Wet weather will move east across the country on Tuesday, accompanied by gales initially. However, brighter, more showery conditions are likely in the west later and winds will gradually ease. Maximum temperature 11 °C.

Outlook for Wednesday to Friday:

Sunny spells on Wednesday and Thursday, although showers, especially in west. Blustery winds at times too. Changeable on Friday with some sunshine, although perhaps rain at first, and again later.

Updated: 01:21 on Mon 17 Dec 2018 GMT

UK forecast for the next 5 days

Headline:

Mostly fine today. Turning windy in west with some rain.

Today:

After a locally frosty and foggy start many areas will be dry on Monday with sunny spells. However, cloud will increase from the west, with wet and windy weather developing across Northern Ireland, and later west Wales and western England.

Tonight:

Monday night will be mild, but rather cloudy and windy, with severe gales in the west. Patchy rain in the north and west, which will become heavier and persistent later.

Tuesday:

Tuesday morning looks mostly dry in the southeast. However, wet and windy weather will move east across the British Isles. Brighter, showery, less windy conditions then follow into the west.

Outlook for Wednesday to Friday:

Sunshine and showers on Wednesday and Thursday. Strong winds, especially in the south. Some rain could reach many areas from the southwest on Friday, although Scotland may remain more settled.

Updated: 01:09 on Mon 17 Dec 2018 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Friday 21 Dec 2018 to Sunday 30 Dec 2018:

Friday starts dry for most with patchy frost and fog, but cloud and rain already in the southwest will spread northeastwards through the day. Clearer, windy and showery conditions follow from the southwest later, these lasting into Saturday. Unsettled weather is likely to continue into the Christmas period, with further spells of rain possibly preceded by hill snow, and with strong winds at times. However during the last week of December there is a chance that the weather pattern will become slow-moving, with some more settled drier conditions developing, and with any rain increasingly confined to the north and west. Temperatures are likely to fluctuate around average, but turning colder should more settled conditions develop.

UK Outlook for Monday 31 Dec 2018 to Monday 14 Jan 2019:

Going into the New Year there is an increasing likelihood of the weather pattern becoming slow-moving or even "blocked", with Atlantic frontal systems held at bay by slow-moving areas of high pressure. This may result in more generally settled and cold weather conditions becoming established. This brings and increased risk of winter hazards, especially frost, and fog or freezing fog which may be slow to clear. When any frontal systems do push across the UK there will be an increased risk of snow. Temperatures are likely to be below normal, and often cold.

Updated: 01:09 on Mon 17 Dec 2018 GMT

Location details

Alwen Reservoir

Location
53.064, -3.559
Altitude
350 m above mean sea level

Follow us on

Facebook, Twitter, YouTube, Instagram, Snapchat, or LinkedIn Facebook Follow @metoffice on Twitter YouTube Instagram Snapchat LinkedIn