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Porthmadog

YELLOW Warnings in force for Gwynedd
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Porthmadog last 24 hours
  • Mon Monday
    11°C 10°C
    Heavy rain
  • Tue Tuesday
    11°C 6°C
    Heavy rain
  • Wed Wednesday
    8°C 5°C
    Sunny day
  • Thu Thursday
    8°C 2°C
    Sunny intervals
  • Fri Friday
    8°C 8°C
    Heavy rain
Monday (22 December 2014)
1800 1900 2000 2100 2200 2300
Overcast Overcast Overcast Overcast Overcast Overcast
Temperature (°C)
11 11 11 11 11 11
Warnings for Gwynedd
No warnings for Monday
Feels like temperature (°C) arrow down
6 6 6 6 6 6
Precipitation probability arrow down
20% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
SW 27 41 SW 26 41 SW 26 41 SW 26 42 SW 26 42 SW 26 42
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG VG
Humidity arrow down
94% 94% 94% 94% 94% 93%
UV index arrow down
0 0 0 0 0 0
Sunrise: 08:27 Sunset: 16:02 Moon phase: New 3 Daily air quality index:3
Tuesday (23 December 2014)
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain
Temperature (°C)
11 11 10 10 10 10 11 11 10 11 11 11 11 11 11 11 11 10 11 11 11 11 10 10
Warnings for Gwynedd
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
6 6 6 6 6 6 6 6 6 7 7 7 7 6 6 6 6 6 7 7 7 7 7 6
Precipitation probability arrow down
10% 10% 10% 10% 10% 10% 10% 50% 50% 60% 50% 50% 60% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90%
Wind direction, speed & gust (mph) arrow down
SW 27 43 SW 27 44 SW 27 43 SW 27 43 SW 26 41 SW 25 41 SW 24 40 SW 25 40 SW 24 40 SW 23 39 SW 24 40 SW 24 41 SW 25 42 SW 26 44 SW 26 44 SW 26 43 SW 26 44 SW 26 42 SW 25 41 SW 24 39 SW 23 37 SW 21 35 WSW 19 32 W 16 26
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG VG VG VG VG VG VG G G G M M M M M M M M M M
Humidity arrow down
93% 92% 90% 90% 90% 88% 88% 90% 92% 91% 91% 91% 92% 92% 94% 95% 95% 95% 95% 96% 96% 96% 95% 94%
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: 08:28 Sunset: 16:02 Moon phase: New 3 Daily air quality index:3
Wednesday (24 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Heavy rain Cloudy Clear night Sunny intervals Sunny day Sunny intervals Cloudy Partly cloudy night
Temperature (°C)
9 7 6 6 7 7 7 7
Warnings for Gwynedd
No warnings for Wednesday
Feels like temperature (°C) arrow down
6 3 2 2 3 3 3 3
Precipitation probability arrow down
90% 30% 10% <5% <5% <5% <5% <5%
Wind direction, speed & gust (mph) arrow down
NW 13 22 WNW 13 22 WNW 12 19 W 14 21 W 18 31 W 18 29 W 16 27 WNW 15 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M G G G VG VG VG VG
Humidity arrow down
92% 80% 78% 78% 68% 71% 74% 78%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:28 Sunset: 16:03 Moon phase: Waxing crescent 3 Daily air quality index:3
Thursday (25 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Partly cloudy night Clear night Clear night Sunny day Sunny intervals Sunny intervals Clear night Partly cloudy night
Temperature (°C)
6 6 5 5 7 7 4 4
Warnings for Gwynedd
No warnings for Thursday
Feels like temperature (°C) arrow down
3 2 2 2 5 5 2 1
Precipitation probability arrow down
<5% <5% <5% <5% <5% 10% <5% <5%
Wind direction, speed & gust (mph) arrow down
WNW 14 22 WNW 13 20 NW 11 16 NNW 8 12 WNW 8 12 NNW 7 10 NNW 5 6 N 5 6
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G VG G G G
Humidity arrow down
82% 84% 87% 89% 79% 84% 93% 94%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:28 Sunset: 16:04 Moon phase: Waxing crescent 2 Daily air quality index:2
Friday (26 December 2014)
0000 0300 0600 0900 1200 1500 1800 2100
Cloudy Cloudy Cloudy Cloudy Heavy rain Heavy rain Heavy rain Light rain
Temperature (°C)
3 4 5 6 7 8 9 9
Warnings for Gwynedd
No warnings for Friday
Feels like temperature (°C) arrow down
1 2 2 3 4 4 4 5
Precipitation probability arrow down
<5% 10% 10% 10% 70% 70% 80% 60%
Wind direction, speed & gust (mph) arrow down
E 5 7 SW 6 9 S 8 12 S 11 20 S 17 29 S 20 33 S 23 38 SSW 26 42
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M G G G M M M
Humidity arrow down
96% 96% 95% 91% 88% 89% 91% 92%
UV index arrow down
0 0 0 1 1 1 0 0
Sunrise: 08:29 Sunset: 16:04 Moon phase: Waxing crescent 2 Daily air quality index:2
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Issued at: 1700 on Mon 22 Dec 2014

Forecast summary

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

Regional forecast for Wales

Cloudy and mild with brisk winds and outbreaks of rain.

This Evening and Tonight:

It will remain cloudy and windy across all areas with patchy rain or drizzle, persistent and heavy at times across the hills in the north and west. Another mild night, despite the strength of the wind. Minimum Temperature 9C.

Tuesday:

Cloudy and windy for all areas, with rain becoming more persistent and heavy in places by the afternoon, especially in the north and west. Maximum Temperature 12C.

Outlook for Wednesday to Friday:

Colder with sunny spells and isolated blustery showers on Christmas Eve, then mostly fine on Christmas Day. It will turn wet and windy from the west during Boxing Day.

Updated at: 1448 on Mon 22 Dec 2014

UK forecast for the next 5 days

Rain, heavy across western hills, moving slowly southwards. Windy.

This Evening and Tonight:

Rain will extend slowly southwards to affect Northern Ireland, southern Scotland and northern England, persistent and heavy across western hills. To the north it will be cold with frequent showers, and to the south, mild with patchy drizzle. Generally windy.

Tuesday:

Rain will continue slowly southwards, heavy across western hills, reaching southern parts of the UK in the evening. It will stay cold further north with sunshine and showers.

Outlook for Wednesday to Friday:

Rain will clear southwards during Christmas Eve, with colder, clearer conditions following. Largely fine on Christmas Day with wintry showers across eastern Britain. Turning wet and windy on Boxing Day.

Updated at: 1445 on Mon 22 Dec 2014

Outlook for the UK over the next 6-30 days

UK Outlook for Saturday 27 Dec 2014 to Monday 5 Jan 2015:

Most places will be wet and windy on Saturday, with gales or sever gales developing in places. Southeastern areas of England may stay dry at first, however. Cloud and rain are expected to clear erratically eastwards during Sunday leaving sunny spells and scattered blustery showers. These will be most frequent across northern and western Britain, becoming wintry with snow in the north. Temperatures will initially be above average but fall below as the rain clears. It will become colder into the following week with snow showers developing across the north. These may spread southwards at times and it will be frosty with freezing fog patches possible. It may turn more unsettled with time, with wetter and windier conditions returning from the west, and temperatures becoming nearer normal.

UK Outlook for Tuesday 6 Jan 2015 to Tuesday 20 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 southern 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 possible, particularly over the high ground.

Updated at: 1445 on Mon 22 Dec 2014

Weather map

Mon 1800

Weather forecast map for Porthmadog

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

Location Details

Porthmadog

Location: 52.9276, -4.1321

Altitude: 9m above mean sea level

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