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Porthmadog

  • Cloudy 13 °C 11 °C
  • Heavy rain 13 °C 12 °C
  • Heavy rain 13 °C 8 °C
  • Cloudy 10 °C 6 °C
  • Cloudy 9 °C 5 °C
  • Light shower day 8 °C 5 °C
  • Cloudy 9 °C 7 °C
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Cloudy Cloudy Heavy rain Light rain Fog Fog Overcast
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Temperature (°C)
12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 °
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10 ° 11 ° 11 ° 11 ° 11 ° 11 ° 11 °
Wind direction, speed & gust (mph) Expand
W 10 14 WSW 7 13 WSW 5 13 SW 4 9 SW 3 11 SW 7 16 WSW 9 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
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Sunrise: 07:48 Sunset: 16:15 Moon phase: New Air pollution: 2
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Fog Fog Mist Mist Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Mist Overcast Overcast Overcast Cloudy Overcast
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Temperature (°C)
12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 °
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Wind direction, speed & gust (mph) Expand
WSW 11 22 WSW 11 21 WSW 11 21 SW 12 21 SW 13 23 SW 13 23 SW 15 26 SW 15 27 SSW 16 27 SSW 17 29 SSW 17 30 SSW 17 30 S 18 30 SSW 18 32 SSW 20 34 SSW 21 36 SSW 21 37 SW 20 35 SW 20 35 SW 21 37 SW 21 36 SW 21 37 SW 21 36 SW 21 37
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VP VP P P M M G G G G G G G G M M M G P M M G M M
Humidity Expand
100% 99% 99% 99% 98% 97% 96% 95% 94% 92% 91% 90% 91% 91% 94% 96% 96% 97% 98% 98% 97% 96% 97% 97%
UV index Expand
1 1 1 1 1 1 1 1
Sunrise: 07:50 Sunset: 16:14 Moon phase: New Air pollution: 2
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Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy shower night
60% 80% 90% ≥95% 90% 90% 90% 70%
Temperature (°C)
13 ° 13 ° 12 ° 13 ° 13 ° 13 ° 12 ° 12 °
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9 ° 9 ° 8 ° 8 ° 9 ° 9 ° 9 ° 8 °
Wind direction, speed & gust (mph) Expand
SW 21 37 SW 23 40 SSW 24 42 SSW 28 50 SSW 28 50 SSW 26 45 SW 22 39 WSW 18 32
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M G M M M M M M
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96% 93% 95% 94% 93% 93% 94% 94%
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1 1 1
Sunrise: 07:52 Sunset: 16:13 Moon phase: Waxing crescent Air pollution: 3
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Light rain Light shower night Partly cloudy night Sunny intervals Sunny intervals Cloudy Cloudy Cloudy
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Temperature (°C)
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WSW 16 30 W 17 30 WSW 21 37 SW 24 41 WSW 22 40 WSW 19 33 W 16 27 WSW 13 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG VG VG VG VG VG
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Sunrise: 07:53 Sunset: 16:12 Moon phase: Waxing crescent Air pollution: 3
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Cloudy Cloudy Partly cloudy night Cloudy Cloudy Cloudy Cloudy Light shower night
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8 ° 7 ° 7 ° 7 ° 8 ° 8 ° 7 ° 6 °
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Wind direction, speed & gust (mph) Expand
WSW 12 20 W 11 19 WNW 10 17 WNW 11 18 W 13 23 WNW 13 22 WNW 13 22 NW 13 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG VG
Humidity Expand
77% 80% 83% 81% 74% 75% 79% 80%
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1 1 1
Sunrise: 07:55 Sunset: 16:11 Moon phase: Waxing crescent Air pollution: 2
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Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Light shower day Partly cloudy night Partly cloudy night
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Temperature (°C)
6 ° 6 ° 6 ° 6 ° 7 ° 7 ° 6 ° 6 °
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2 ° 2 ° 1 ° 2 ° 3 ° 2 ° 2 ° 1 °
Wind direction, speed & gust (mph) Expand
NW 15 25 WNW 16 27 WNW 18 29 WNW 17 29 WNW 19 34 NW 20 33 NW 19 31 NW 18 30
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG VG
Humidity Expand
78% 78% 76% 75% 70% 69% 71% 71%
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1 1 1
Sunrise: 07:57 Sunset: 16:10 Moon phase: First quarter
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Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy
<5% 10% 10% 10% 20% 20% 20% 20%
Temperature (°C)
6 ° 6 ° 7 ° 7 ° 9 ° 9 ° 8 ° 9 °
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2 ° 2 ° 2 ° 3 ° 5 ° 5 ° 5 ° 5 °
Wind direction, speed & gust (mph) Expand
WNW 17 29 WNW 17 29 WNW 17 28 W 17 28 W 18 32 W 18 31 WSW 18 31 WSW 20 33
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG G
Humidity Expand
72% 73% 75% 75% 72% 75% 78% 80%
UV index Expand
1 1 1
Sunrise: 07:58 Sunset: 16:09 Moon phase: First quarter

Issued at:

Forecast Summary

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

Wales

Headline:

Outbreaks of rain this evening.

This Evening and Tonight:

The skies will remain cloudy this evening, with rain likely for many. The rain will become mostly confined to the north, and over the hills towards dawn. Staying mild overnight. Minimum temperature 10 °C.

Tuesday:

Mostly dry with some brightness at first on Tuesday. However, the skies will cloud over from the west through the afternoon with rain arriving. Mild, but breezy. Maximum temperature 14 °C.

Outlook for Wednesday to Friday:

Windy with outbreaks of rain Wednesday, often heavy. Largely dry but breezy at first on Thursday, rain later. Colder on Friday with the likelihood of showers, wintry over the hills.

Updated: 14:58 on Mon 20 Nov 2017 GMT

UK forecast for the next 5 days

Headline:

Rain for many overnight, heavy in the north.

This Evening and Tonight:

Outbreaks of rain arriving from the west, with heavy bursts in northern England, Northern Ireland and Scotland. Hill snow in the far north of Scotland. Lighter rain in the southern half of the UK, where it will ease later.

Tuesday:

Heavy rain across Scotland. Cloudy, breezy and mild elsewhere around the UK with rain in places, but also some brighter breaks in eastern, central and southern England.

Outlook for Wednesday to Friday:

Unsettled with wet and windy weather likely at times. Colder, brighter conditions spreading to most areas towards the end of the week, with overnight frosts and wintry showers.

Updated: 14:57 on Mon 20 Nov 2017 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Saturday 25 Nov 2017 to Monday 4 Dec 2017:

Over next weekend, sunny spells and showers are likely in the north and west. Showers could be wintry in the northern half of the UK and perhaps over higher ground in central England and Wales. Central and southeastern parts will stay mainly dry and sunny. It will be windy, particularly in the far north where gales are likely. Temperatures will generally be rather cold, with some early frost, especially in the north. Showers or longer spells of rain look likely next week too, with dry brighter spells in-between. Showers could sometimes be wintry over hills in Scotland and Northern England, but they will mainly fall as rain. Drier and brighter weather is likely in the east and southeast of England. It will probably be windy, especially in the north.

UK Outlook for Tuesday 5 Dec 2017 to Tuesday 19 Dec 2017:

During the first three weeks of December, confidence is low as to which types of weather will predominate. Periods of wet, mild and perhaps windy weather remain likely at times but there is a chance that more settled weather will prevail across all parts, bringing some dry and bright days, but cold and frosty nights. Changes between these weather types are likely to be rather slow.

Updated: 14:57 on Mon 20 Nov 2017 GMT

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