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Porthmadog

Porthmadog last 24 hours Share this forecast
  • Thu Thursday
    18°C 15°C
    Cloudy
  • Fri Friday
    16°C 13°C
    Heavy rain
  • Sat Saturday
    16°C 13°C
    Heavy rain
  • Sun Sunday
    17°C 14°C
    Light shower day
  • Mon Monday
    19°C 15°C
    Light shower day
Thursday
0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Cloudy Cloudy Cloudy Cloudy Sunny intervals Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
17 17 17 17 18 18 18 18 18 18 18 18 18 17 17
Feels like temperature (°C) arrow down
15 16 16 16 17 16 16 15 16 16 15 15 15 15 15
Precipitation probability arrow down
10% 10% 10% 10% <5% 10% <5% <5% <5% <5% 10% 10% <5% <5% <5%
Wind direction, speed & gust (mph) arrow down
WSW 12 14 WSW 10 12 WSW 8 10 SW 8 11 SSW 9 12 SW 14 18 SSW 14 19 SSW 14 20 SSW 14 20 SSW 14 20 SW 15 22 SW 16 24 SW 17 25 SW 17 26 SW 17 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG VG E E E E VG VG VG VG VG
Humidity arrow down
88% 86% 83% 81% 81% 83% 78% 78% 77% 79% 82% 85% 87% 87% 89%
UV index arrow down
1 1 2 3 4 5 6 7 5 3 1 1 1 0 0
Sunrise: 05:33 Sunset: 21:12 Moon phase: Waxing crescent 2 Daily air quality index*
Friday
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Cloudy Cloudy Light shower night Cloudy Cloudy Cloudy Light rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Heavy rain Light rain Heavy rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain
17 17 17 16 16 16 15 15 15 15 15 15 15 16 16 16 16 16 15 15 15 15 15 14
Feels like temperature (°C) arrow down
15 15 15 15 15 15 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 15 14
Precipitation probability arrow down
20% 20% 35% 10% 10% 10% 70% 80% 80% 85% 85% 75% 85% 70% 85% 70% 70% 85% 80% 80% 80% 60% 60% 60%
Wind direction, speed & gust (mph) arrow down
SW 16 23 SW 14 21 SW 13 19 WSW 11 17 WSW 10 16 WSW 8 13 W 8 14 WSW 6 11 W 5 9 SW 5 9 WSW 6 10 WSW 6 11 WSW 7 12 WSW 7 12 SW 7 12 SW 7 12 SW 7 12 SW 6 11 SW 5 10 WSW 5 9 WSW 4 8 NE 4 8 NNE 3 7 N 4 7
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG VG G G G M M M G G M M G M M M M M M M
Humidity arrow down
90% 91% 90% 88% 85% 84% 87% 90% 90% 91% 91% 90% 91% 92% 91% 91% 90% 91% 90% 89% 92% 93% 95% 96%
UV index arrow down
0 0 0 0 0 0 1 1 1 1 1 2 3 3 3 3 3 2 2 1 1 1 0 0
Sunrise: 05:34 Sunset: 21:10 Moon phase: Waxing crescent 2 Daily air quality index*
Saturday
0000 0100 0400 0700 1000 1300 1600 1900 2200
Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light shower day Light rain Light rain Heavy shower night
14 14 14 14 15 16 16 16 14
Feels like temperature (°C) arrow down
14 14 13 12 13 14 14 13 12
Precipitation probability arrow down
80% 80% 75% 70% 80% 55% 55% 45% 50%
Wind direction, speed & gust (mph) arrow down
N 4 8 NNE 4 8 NNW 7 13 NNW 9 16 NW 10 20 NNW 11 22 NW 13 25 NW 12 22 WNW 11 19
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M M M M G G G G
Humidity arrow down
97% 97% 97% 95% 92% 86% 84% 81% 88%
UV index arrow down
0 0 0 1 1 3 6 1 0
Sunrise: 05:36 Sunset: 21:09 Moon phase: Waxing crescent 2 Daily air quality index*
Sunday
0100 0400 0700 1000 1300 1600 1900 2200
Heavy rain Heavy shower night Cloudy Light shower day Light shower day Light shower day Light shower day Cloudy
14 13 13 15 16 17 17 15
Feels like temperature (°C) arrow down
12 12 12 13 14 15 15 14
Precipitation probability arrow down
70% 50% <5% 35% 35% 30% 30% <5%
Wind direction, speed & gust (mph) arrow down
WNW 11 18 W 11 18 W 12 18 W 13 23 W 13 24 WSW 13 24 WSW 13 22 WSW 10 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M G G G G VG G
Humidity arrow down
94% 94% 92% 84% 75% 66% 72% 87%
UV index arrow down
0 0 1 2 5 5 1 0
Sunrise: 05:38 Sunset: 21:07 Moon phase: First quarter 2 Daily air quality index*
Monday
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Cloudy Sunny intervals Light shower day Light shower day Light shower day Light shower day Partly cloudy night
15 15 15 17 18 19 18 17
Feels like temperature (°C) arrow down
14 14 15 15 17 17 17 16
Precipitation probability arrow down
<5% <5% <5% 35% 35% 35% 35% 25%
Wind direction, speed & gust (mph) arrow down
SW 9 13 SSW 8 12 SSW 7 12 S 10 18 SSW 10 19 SW 9 17 SW 8 14 S 6 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G VG G VG VG G
Humidity arrow down
93% 95% 92% 76% 71% 69% 70% 89%
UV index arrow down
0 0 1 2 5 5 2 0
Sunrise: 05:39 Sunset: 21:05 Moon phase: First quarter 2 Daily air quality index*
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Issued at: 0900 on Thu 31 Jul 2014

* Daily index representing the background and regional air quality for a chosen location. Air pollution levels close to roads in urban areas may be higher. For more information please visit our Daily Air Quality Index page.

Forecast Summary

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

Regional forecast for Wales

Sunny spells and showers, locally heavy with thunder possible.

Today:

Often cloudy at first with some showery rain spreading south and eastwards, this perhaps heavy and thundery. Becoming brighter from the northwest later, with sunny spells and isolated showers. Breezy around some coasts, but still pleasantly warm in sunnier intervals. Maximum Temperature 22C.

Tonight:

Most places will become dry this evening with clear spells developing. Just a few light showers are possible, with a little hill fog overnight. Light winds. Minimum Temperature 14C.

Friday:

Mainly dry to start, but increasingly cloudy with showers developing through the day. Showers will merge to give longer spells of rain later, perhaps turning heavy at times. Maximum Temperature 20C.

Outlook for Saturday to Monday:

Remaining unsettled with showers or rain, occasionally heavy, but also some sunny intervals. Becoming drier and brighter on Sunday and Monday with just isolated showers. Breezy at times.

Issued at: 0500 on Thu 31 Jul 2014

UK forecast for the next 5 days

Sunny spells and showers, locally heavy. Drier towards the southeast.

Today:

Sunny spells and showers or rain for many, turning heavy and perhaps thundery at times, especially over Scotland. Largely dry in the southeast with warm sunny spells, but isolated showers possible towards the end of the day.

Tonight:

Showers continuing to affect the north overnight, but easing and becoming more isolated through the evening across the south, with clear spells developing. Winds will be mainly light.

Friday:

Showers in the north and west, occasionally heavy and possibly thundery, will spread into more central areas through the day. Southeastern parts will stay largely dry and warm though.

Outlook for Saturday to Monday:

Unsettled across most areas with showers or spells of rain and some brightness. Drier in the south Sunday, but cloudier with rain, and breezy, in north. Less unsettled on Monday.

Issued at: 0500 on Thu 31 Jul 2014

Outlook for the UK over the next 6-30 days

UK Outlook for Monday 4 Aug 2014 to Wednesday 13 Aug 2014:

Many areas probably starting off fine and generally dry on Monday. However, cloud and rain, possibly heavy at times, will gradually spread from the west through the latter part of Monday, through probably not reaching eastern regions until later on Tuesday. The unsettled theme is likely to continue until the end of the period, although there may be more in the way of drier and brighter conditions developing across the south and east later. Temperatures generally near normal, but often warm towards the south and east. Winds generally light to moderate for most, but perhaps locally strong in the northwest, with a risk of gales in some exposed western parts into the second half of next week.

UK Outlook for Thursday 14 Aug 2014 to Thursday 28 Aug 2014:

With no particularly strong signals regarding weather patterns over the UK during the latter part of August, conditions are more likely than not to be close to climatology. As such most regions can expect to see periods of fine weather with some sunshine interspersed by occasional spells of more changeable conditions with showers or rain. Northern parts are perhaps most likely to see the most frequent bouts of unsettled weather leaving southern parts with the most prolonged fine spells. Daytime temperatures are then likely to often be above average during fine spells.

Issued at: 0500 on Thu 31 Jul 2014

Weather Map

Thu 0900

View weather map for Porthmadog

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

Location Details

Porthmadog

Location: 52.9276, -4.1321

Altitude: 9m above mean sea level