Use my current location crosshair

Llyn Y Fan Fawr

Recent locations
Llyn Y Fan Fawr last 24 hours
  • 8 °C

    4 °C

    Heavy rain
  • 5 °C

    3 °C

    Fog
  • 6 °C

    4 °C

    Light rain
  • 6 °C

    4 °C

    Light rain
  • 6 °C

    3 °C

    Light rain
  • 5 °C

    3 °C

    Light rain
  • 4 °C

    0 °C

    Light shower day
Saturday   (10 December 2016)
1800 1900 2000 2100 2200 2300
Heavy rain Drizzle Mist Fog Fog Fog
Temperature (°C)
7 ° 6 ° 6 ° 5 ° 5 ° 5 °
Feels like temperature (°C) arrow down
4 ° 3 ° 2 ° 1 ° 1 ° 0 °
Precipitation probability arrow down
90% 30% 30% 20% 20% 20%
Wind direction, speed & gust (mph) arrow down
NE 7 10 NW 11 14 WNW 12 15 W 14 17 WNW 14 18 WNW 14 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
P M P VP VP VP
Humidity arrow down
99% 96% 96% 99% 99% 99%
UV index arrow down
0 0 0 0 0 0
Sunday   (11 December 2016)
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Mist Partly cloudy night Cloudy Cloudy Cloudy Cloudy Mist Mist
Temperature (°C)
5 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 5 ° 5 ° 5 ° 4 ° 4 ° 4 ° 4 ° 4 ° 3 ° 3 ° 3 °
Feels like temperature (°C) arrow down
0 ° 0 ° 0 ° 0 ° -1 ° -1 ° -1 ° -1 ° -1 ° -1 ° 0 ° 0 ° 0 ° 0 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 0 ° 0 ° 0 °
Precipitation probability arrow down
20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 10% <5% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
WNW 15 18 WNW 15 19 WNW 15 19 W 15 18 W 14 18 W 13 17 W 13 16 W 13 17 W 14 18 W 14 18 W 13 17 W 13 17 W 14 18 W 13 17 W 12 15 WSW 10 13 WSW 9 11 SW 8 10 SSW 7 8 S 7 8 SSE 7 9 SSE 8 10 SE 10 13 SE 11 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP P G G G M M P P
Humidity arrow down
99% 99% 99% 99% 99% 98% 99% 98% 98% 98% 98% 98% 98% 97% 97% 97% 97% 95% 92% 91% 90% 90% 91% 90%
UV index arrow down
0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
Monday   (12 December 2016)
0000 0300 0600 0900 1200 1500 1800 2100
Partly cloudy night Partly cloudy night Mist Drizzle Drizzle Light rain Drizzle Overcast
Temperature (°C)
4 ° 4 ° 5 ° 5 ° 5 ° 6 ° 6 ° 5 °
Feels like temperature (°C) arrow down
1 ° 0 ° 0 ° -1 ° 1 ° 2 ° 2 ° 2 °
Precipitation probability arrow down
10% 20% 50% 50% 60% 60% 40% 20%
Wind direction, speed & gust (mph) arrow down
SSE 13 17 SSE 18 24 SE 19 26 SSE 19 27 SSE 17 24 S 17 23 SSW 15 20 S 11 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G P VP VP VP P M
Humidity arrow down
82% 81% 89% 95% 98% 98% 99% 97%
UV index arrow down
0 0 0 1 1 1 0 0
Tuesday   (13 December 2016)
0000 0300 0600 0900 1200 1500 1800 2100
Drizzle Drizzle Drizzle Mist Light rain Overcast Light rain Light rain
Temperature (°C)
5 ° 5 ° 5 ° 5 ° 6 ° 6 ° 6 ° 6 °
Feels like temperature (°C) arrow down
2 ° 2 ° 2 ° 2 ° 3 ° 3 ° 2 ° 2 °
Precipitation probability arrow down
40% 40% 40% 30% 40% 20% 50% 50%
Wind direction, speed & gust (mph) arrow down
S 12 17 SSE 11 16 S 12 17 S 12 18 S 13 21 S 13 20 S 13 20 S 15 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M M P M M P M
Humidity arrow down
98% 99% 99% 99% 98% 98% 98% 98%
UV index arrow down
0 0 0 1 1 1 0 0
Wednesday   (14 December 2016)
0000 0300 0600 0900 1200 1500 1800 2100
Overcast Overcast Overcast Cloudy Light rain Light rain Light rain Light rain
Temperature (°C)
6 ° 6 ° 6 ° 5 ° 6 ° 6 ° 5 ° 5 °
Feels like temperature (°C) arrow down
2 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 °
Precipitation probability arrow down
20% 20% 20% 20% 50% 50% 60% 50%
Wind direction, speed & gust (mph) arrow down
SSE 16 24 SSE 17 26 SSE 17 26 SSE 18 27 SSE 17 27 SSE 16 26 S 16 24 S 14 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G M M M M M M M
Humidity arrow down
98% 98% 98% 98% 96% 97% 97% 97%
UV index arrow down
0 0 0 1 1 1 0 0
Thursday   (15 December 2016)
0000 0300 0600 0900 1200 1500 1800 2100
Light rain Light rain Cloudy Cloudy Light rain Light rain Light rain Light rain
Temperature (°C)
4 ° 4 ° 3 ° 4 ° 5 ° 5 ° 5 ° 4 °
Feels like temperature (°C) arrow down
0 ° -1 ° -2 ° -2 ° -1 ° -1 ° -1 ° -1 °
Precipitation probability arrow down
50% 50% 20% 20% 50% 60% 50% 60%
Wind direction, speed & gust (mph) arrow down
S 15 22 SSE 17 25 SSE 19 28 SSE 21 32 SSE 23 37 SSE 23 37 S 24 37 S 23 36
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M G M G G M M
Humidity arrow down
97% 97% 97% 96% 95% 94% 95% 96%
UV index arrow down
0 0 0 1 1 1 0 0
Friday   (16 December 2016)
0000 0300 0600 0900 1200 1500 1800 2100
Light shower night Light rain Light rain Light rain Light shower day Light shower day Light shower night Light shower night
Temperature (°C)
4 ° 4 ° 3 ° 3 ° 4 ° 3 ° 2 ° 2 °
Feels like temperature (°C) arrow down
-1 ° -2 ° -2 ° -2 ° -2 ° -2 ° -3 ° -3 °
Precipitation probability arrow down
50% 60% 50% 60% 40% 40% 40% 40%
Wind direction, speed & gust (mph) arrow down
S 22 33 S 21 33 S 22 34 S 23 35 SSW 21 35 SW 20 33 SW 20 31 SW 20 31
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G G G G G
Humidity arrow down
95% 95% 95% 93% 91% 91% 93% 93%
UV index arrow down
0 0 0 1 1 1 0 0
More Detail chevron down

Issued at: 1700 on Sat 10 Dec 2016

Forecast summary

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

Regional forecast for Wales

Drier and brighter through tomorrow but feeling fresher.

This Evening and Tonight:

Today's rain will soon clear south-eastwards to leave a largely dry night with some long clear spells. This will allow a few mist and fog patches to develop. Noticeably chillier with a local grass frost. Minimum Temperature 2 °C.

Sunday:

Sunday's weather will be much more clement. It will be dry and bright with sunny periods. Although slightly cooler than recently, temperatures will still be above average. Maximum Temperature 10 °C.

Outlook for Monday to Wednesday:

Monday will start breezy and dry, but grey skies, mist and drizzle will arrive later, persisting into Tuesday, though with lighter winds. Stronger winds and rain will return on Wednesday.

Updated at: 1530 on Sat 10 Dec 2016

UK forecast for the next 5 days

Rain clearing in the south, drier for all tomorrow.

This Evening and Tonight:

Tonight, the rain in the south will clear, leaving a mostly dry and chillier for England and Wales. Further north, it will be windy with some showers, although these will ease through. Fog patches will form in the south-west.

Sunday:

Sunday will be largely dry, albeit fresher, with some sunshine. However, patchy rain may affect northwestern areas and fog may affect the south-west overnight. Winds easing in the north.

Outlook for Monday to Wednesday:

Changeable. It will often be cloudy with patchy rain spreading eastwards across the British Isles. Windy at times in the north. Patchy frost at first, otherwise generally mild.

Updated at: 1519 on Sat 10 Dec 2016

Outlook for the UK over the next 6-30 days

UK Outlook for Thursday 15 Dec 2016 to Saturday 24 Dec 2016:

Towards the end of next week, it looks like a west-east split will develop. Frontal systems are likely to move into the west bringing outbreaks of rain, easing as they move eastwards. Pressure then looks more likely to build over the UK during next weekend, bringing drier and, at times, brighter weather for southern parts, although the north may hold onto cloud and outbreaks of rain. Temperatures are likely to be near normal, with frost patches forming where the cloud breaks. There is a large degree of uncertainty as we head towards the Christmas period, however, high pressure looks more likely to dominate leading to drier weather. Nonetheless, there are suggestions that frontal systems will move in from the west bringing spells of rain and milder interludes.

Updated at: 1159 on Sat 10 Dec 2016

UK Outlook for Sunday 25 Dec 2016 to Sunday 8 Jan 2017:

There is a good deal of uncertainty for this period as the UK remains in a battleground between higher pressure across the near continent and lower pressure in the Atlantic. The exact orientation of these will dictate conditions across the country. Currently western parts are most likely to see outbreaks of rain at times, along with relatively mild conditions, whilst eastern areas will see drier and perhaps colder conditions. There will probably also be some milder, unsettled interludes though, especially into early January.

Updated at: 1158 on Sat 10 Dec 2016

Weather map

Sat 1900

Weather forecast map for Llyn Y Fan Fawr

Llyn Y Fan Fawr Llyn Y Fan Fawr – Drizzle 51.8826 -3.7019
Cardiff Cardiff – Light rain 51.4812 -3.1778
Aberystwyth Aberystwyth – Light shower night 52.415 -4.0817
Hereford Hereford – Light rain 52.056 -2.7146
Newtown (Powys) Newtown (Powys) – Light shower night 52.5118 -3.3118
Pembroke Pembroke – Clear night 51.6731 -4.9084
Barnstaple Barnstaple – Cloudy 51.0777 -4.0571
Yeovil Yeovil – Light rain 50.9416 -2.632
Exeter Exeter – Light rain 50.7179 -3.5327
Swindon Swindon – Heavy rain 51.5556 -1.7784
Wrexham Wrexham – Light shower night 53.0428 -2.9911
Birmingham Birmingham – Heavy rain 52.4859 -1.889
Caernarfon Caernarfon – Clear night 53.1393 -4.2727
Stoke-on-Trent Stoke-on-Trent – Light rain 53.0024 -2.178
Banbury Banbury – Heavy rain 52.0625 -1.3383
Plymouth Plymouth – Cloudy 50.3713 -4.1348
Southampton Southampton – Heavy rain 50.9093 -1.403
Reading Reading – Heavy rain 51.4523 -0.9724
Milton Keynes Milton Keynes – Heavy rain 52.0382 -0.7555

Location Details

Llyn Y Fan Fawr

Location: 51.8826, -3.7019

Altitude: 621.0 m above mean sea level

Video forecast