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Porthmadog

YELLOW Warnings in force for Gwynedd
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Porthmadog last 24 hours
  • Thu Thursday
    12°C 6°C
    Overcast
  • Fri Friday
    8°C 7°C
    Cloudy
  • Sat Saturday
    9°C 8°C
    Cloudy
  • Sun Sunday
    11°C 11°C
    Light rain
  • Mon Monday
    11°C 8°C
    Light rain
Thursday (18 December 2014)
1900 2000 2100 2200 2300
Light rain Light rain Heavy rain Light rain Cloudy
Temperature (°C)
11 11 10 10 10
Warnings for Gwynedd
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
7 7 8 8 7
Precipitation probability arrow down
70% 60% 90% 50% 20%
Wind direction, speed & gust (mph) arrow down
WSW 25 38 WSW 20 33 WNW 13 24 W 11 21 W 10 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G M G G VG
Humidity arrow down
97% 97% 93% 92% 90%
UV index arrow down
0 0 0 0 0
Sunrise: 08:25 Sunset: 16:00 Moon phase: Waning crescent 3 Daily air quality index:3
Friday (19 December 2014)
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Cloudy Cloudy Cloudy Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Light shower night Cloudy Partly cloudy night Cloudy Partly cloudy night Cloudy Cloudy
Temperature (°C)
9 9 8 7 7 7 6 6 6 6 7 7 7 7 8 8 8 7 7 7 7 7 7 7
Warnings for Gwynedd
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
7 6 5 4 3 3 3 3 3 2 3 3 3 3 3 3 3 3 3 3 3 3 3 2
Precipitation probability arrow down
20% 20% 10% 10% <5% <5% <5% <5% <5% <5% <5% <5% <5% 10% 10% 10% 20% 40% 20% <5% 10% 10% <5% <5%
Wind direction, speed & gust (mph) arrow down
W 10 19 W 11 21 W 12 23 W 13 24 W 13 24 W 13 23 W 14 24 W 14 24 W 14 25 W 14 25 W 16 26 W 17 27 W 18 29 W 19 30 W 19 31 W 19 31 W 19 31 W 18 29 W 17 30 W 18 31 W 18 30 W 18 31 W 19 32 W 20 34
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG E VG VG VG VG VG VG VG VG VG VG VG G VG VG VG VG VG G
Humidity arrow down
87% 84% 82% 79% 76% 76% 75% 74% 76% 77% 74% 70% 69% 72% 71% 73% 75% 74% 75% 74% 75% 75% 75% 78%
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
Sunrise: 08:26 Sunset: 16:01 Moon phase: Waning crescent 3 Daily air quality index:3
Saturday (20 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Cloudy Overcast Cloudy Cloudy Cloudy Cloudy Light rain Partly cloudy night
Temperature (°C)
7 7 7 8 8 8 8 8
Warnings for Gwynedd
No warnings for Saturday
Feels like temperature (°C) arrow down
2 2 3 3 5 5 5 5
Precipitation probability arrow down
10% 10% 10% 10% 10% 10% 40% <5%
Wind direction, speed & gust (mph) arrow down
W 20 35 W 21 36 W 21 37 WNW 20 35 WNW 19 34 WNW 15 26 W 11 19 WSW 13 22
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
78% 78% 78% 82% 80% 81% 87% 86%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:26 Sunset: 16:01 Moon phase: New 3 Daily air quality index:3
Sunday (21 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Cloudy Overcast Light rain Light rain Cloudy Light shower day Light rain Light shower night
Temperature (°C)
8 9 9 10 11 11 11 11
Warnings for Gwynedd
No warnings for Sunday
Feels like temperature (°C) arrow down
4 5 5 6 7 7 7 7
Precipitation probability arrow down
10% 20% 60% 50% 20% 40% 60% 40%
Wind direction, speed & gust (mph) arrow down
WSW 16 27 WSW 19 32 SW 22 38 SW 23 39 SW 24 42 SW 25 44 SW 24 41 SW 25 42
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G M M G G G M
Humidity arrow down
85% 88% 93% 94% 93% 93% 95% 96%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:27 Sunset: 16:01 Moon phase: New 3 Daily air quality index:3
Monday (22 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Light shower night Overcast Cloudy Light rain Overcast Light rain Heavy rain Heavy rain
Temperature (°C)
11 11 11 11 11 11 11 10
Warnings for Gwynedd
No warnings for Monday
Feels like temperature (°C) arrow down
7 7 7 7 7 7 7 7
Precipitation probability arrow down
40% 20% 20% 50% 20% 60% 80% 90%
Wind direction, speed & gust (mph) arrow down
SW 26 44 SW 26 44 SW 27 47 SW 27 47 SW 29 49 SW 27 46 SW 24 41 W 16 27
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G M M G M M
Humidity arrow down
95% 94% 92% 91% 92% 92% 94% 92%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:27 Sunset: 16:02 Moon phase: New 3 Daily air quality index:3
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Issued at: 1800 on Thu 18 Dec 2014

Forecast summary

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

Regional forecast for Wales

Rain clearing south, then colder and brighter and drier tomorrow.

This Evening and Tonight:

Cloudy with rain continuing, mainly affecting western-facing hills. However, this clearing southeastwards after midnight, allowing clearer, colder conditions to spread in from the north, reaching across the region by dawn. Some blustery showers possible to the north. Remaining windy. Minimum Temperature 5C.

Friday:

A cold but bright start to Friday, then a largely dry and bright day, but the odd shower is possible in the north. Feeling chilly with a brisk northwesterly wind. Maximum Temperature 9C.

Outlook for Saturday to Monday:

Bright, breezy and cold on Saturday, with a few showers, wintry over hills. Turning cloudier but milder for Sunday and Monday, though still windy, with occasional rain or drizzle.

Updated at: 1413 on Thu 18 Dec 2014

UK forecast for the next 5 days

Mild with rain in clearing south, then colder with showers.

This Evening and Tonight:

Cloudy across the south with rain continuing, mainly affecting western parts. This clearing southeastwards, allowing clearer, colder conditions in the north to spread to all but the far southeast of England by morning. Blustery showers giving snow on northern hills.

Friday:

Rain soon clearing the far southeast. Then dry, bright and breezy for much of England and Wales, but with blustery wintry showers in the north, locally heavy and thundery.

Outlook for Saturday to Monday:

Bright, breezy and cold on Saturday, wintry showers in the north easing. Turning cloudier but milder for Sunday and Monday, though still windy, with outbreaks of rain or drizzle.

Updated at: 1413 on Thu 18 Dec 2014

Outlook for the UK over the next 6-30 days

UK Outlook for Tuesday 23 Dec 2014 to Thursday 1 Jan 2015:

Rain over central and southern parts Tuesday should move slowing southeastwards, clearing the southeast early on Christmas Eve. Colder showery conditions to the north, with snow on high ground here, following over the entire UK. The colder conditions then persist for most through Christmas Day and the following weekend with snow even to low levels at times in the north. There is a low probability of some more persistent rain crossing southern parts during the holiday weekend with a risk of snow on the leading edge. Otherwise in the following week there looks to be a gradual return to spells of wet and milder weather interspersed with colder, showery conditions. Generally windy for many throughout the period with risk of gales, these mainly in the northwest.

UK Outlook for Friday 2 Jan 2015 to Friday 16 Jan 2015:

The most likely scenario for the coming New Year is for a continuation of changeable, and at times windy weather coming from the Atlantic with the wettest weather probably across western parts of the UK, and eastern parts most likely to see the best of any dry weather. In between the wetter periods there should be drier, brighter, and colder spells. Temperatures are most likely to be around or slightly below average for the time of year with overnight frosts and some snow over the high ground expected. There is a chance of some overnight and morning fog in places too. However, there is a low likelihood that the drier spells will become more prolonged between weather systems.

Updated at: 1413 on Thu 18 Dec 2014

Weather map

Thu 2000

Weather forecast map for Porthmadog

Porthmadog Porthmadog – Light rain 52.9276 -4.1321
Aberystwyth Aberystwyth – Heavy rain 52.415 -4.0817
Newtown (Powys) Newtown (Powys) – Heavy rain 52.5118 -3.3118
Wrexham Wrexham – Light shower night 53.0428 -2.9911
Stoke-on-Trent Stoke-on-Trent – Cloudy 53.0024 -2.178
Preston Preston – Heavy rain 53.763 -2.7017
Hereford Hereford – Cloudy 52.056 -2.7146
Douglas (Isle of Man) Douglas (Isle of Man) – Light shower night 54.1518 -4.484
Manchester Manchester – Heavy rain 53.479 -2.2465
Swansea Swansea – Heavy rain 51.621 -3.9424
Pembroke Pembroke – Heavy rain 51.6731 -4.9084
Birmingham Birmingham – Light shower night 52.4859 -1.889
Cardiff Cardiff – Heavy rain 51.4812 -3.1778
Kendal Kendal – Cloudy 54.3279 -2.7449
Sheffield Sheffield – Light shower night 53.3809 -1.4686
Leeds Leeds – Cloudy 53.8011 -1.547
Nottingham Nottingham – Cloudy 52.9545 -1.1565
Newry Newry – Partly cloudy night 54.1707 -6.3348
Barnstaple Barnstaple – Heavy rain 51.0777 -4.0571
Banbury Banbury – Light rain 52.0625 -1.3383

Location Details

Porthmadog

Location: 52.9276, -4.1321

Altitude: 9m above mean sea level

Video forecast