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Porthmadog

  • Cloudy 13 °C 11 °C
  • Heavy shower day 13 °C 10 °C
  • Cloudy 13 °C 12 °C
  • Light rain 15 °C 13 °C
  • Heavy shower day 15 °C 13 °C
  • Cloudy 15 °C 12 °C
  • Cloudy 15 °C 11 °C
Now 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Cloudy Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain
20% 20% 10% 10% 10% 10% 10% <5% 10% 20% 80% 90% 90% 90% 80% 50%
Temperature (°C)
12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 11 ° 11 ° 12 ° 13 ° 14 ° 14 °
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Feels like temperature (°C) Expand
9 ° 9 ° 10 ° 10 ° 10 ° 10 ° 9 ° 9 ° 9 ° 9 ° 9 ° 9 ° 9 ° 10 ° 10 ° 10 °
Wind direction, speed & gust (mph) Expand
NW 16 27 WNW 13 22 WNW 11 19 W 11 18 WSW 12 18 SW 14 20 SW 15 23 SSW 15 24 SSW 16 26 S 15 25 SSE 14 24 E 13 20 E 14 22 SSE 19 32 SSE 24 39 S 23 38
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG VG VG VG E E E VG G M G G G VG
Humidity Expand
94% 91% 89% 85% 82% 79% 73% 70% 69% 73% 82% 87% 88% 88% 88% 90%
UV index Expand
1 1 1 1 1 1 1 1 1 1
Sunrise: 07:51 Sunset: 18:11 Moon phase: New Air pollution: 2
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Light rain Light shower night Cloudy Light shower night Light shower night Light shower night Heavy shower night Heavy shower night Heavy shower night Heavy rain Heavy shower day Heavy rain Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower night Heavy shower night Heavy shower night Light rain Light rain Light rain
40% 30% 10% 30% 40% 40% 60% 70% 70% 90% 80% 90% 70% 80% 80% 70% 80% 60% 70% 60% 60% 50% 50% 50%
Temperature (°C)
14 ° 14 ° 14 ° 14 ° 14 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 12 ° 12 ° 12 ° 11 ° 11 ° 11 °
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Feels like temperature (°C) Expand
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Wind direction, speed & gust (mph) Expand
S 22 37 S 24 40 S 25 42 S 27 45 S 28 45 S 28 46 S 30 50 S 31 51 S 32 52 S 32 53 S 33 55 SSW 34 56 SSW 34 57 SSW 34 57 SW 34 57 WSW 31 52 WSW 27 47 WSW 26 45 W 26 44 W 24 43 W 24 42 W 24 42 W 25 44 W 26 46
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E E E VG VG E VG G M G VG VG G VG G G M VG VG VG VG VG VG G
Humidity Expand
88% 85% 84% 81% 79% 80% 82% 86% 86% 87% 87% 88% 89% 90% 90% 89% 88% 86% 86% 85% 85% 85% 85% 85%
UV index Expand
1 1 1 1 1 1 1 1 1
Sunrise: 07:53 Sunset: 18:09 Moon phase: New Air pollution: 2
00:00 01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Light rain Light rain Light rain Light shower night Sunny intervals Cloudy Light shower day Cloudy Light rain
50% 60% 50% 50% 10% 20% 40% 20% 50%
Temperature (°C)
10 ° 10 ° 10 ° 10 ° 10 ° 12 ° 12 ° 12 ° 12 °
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6 ° 6 ° 6 ° 6 ° 7 ° 8 ° 9 ° 9 ° 9 °
Wind direction, speed & gust (mph) Expand
W 26 46 W 26 46 WNW 26 46 WNW 24 43 W 21 38 W 20 36 W 17 31 WSW 15 26 SW 16 28
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G VG VG VG VG G G
Humidity Expand
84% 84% 83% 78% 73% 73% 77% 81% 87%
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1 1 1
Sunrise: 07:55 Sunset: 18:06 Moon phase: New Air pollution: 2
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Light rain Light rain Heavy shower night Light rain Light rain Light rain Light shower night Cloudy
60% 60% 60% 40% 50% 50% 40% 10%
Temperature (°C)
13 ° 14 ° 14 ° 14 ° 15 ° 15 ° 14 ° 14 °
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10 ° 11 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 °
Wind direction, speed & gust (mph) Expand
SW 17 29 SSW 17 30 SW 14 25 SW 13 23 SSW 15 28 SW 15 27 SW 13 23 SSW 14 24
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M G G G M G G
Humidity Expand
91% 94% 94% 92% 90% 91% 93% 93%
UV index Expand
1 1 1
Sunrise: 07:57 Sunset: 18:04 Moon phase: Waxing crescent Air pollution: 2
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Light shower night Heavy rain Light shower night Light shower day Light shower day Heavy shower day Light rain Cloudy
40% 70% 40% 40% 40% 60% 50% 10%
Temperature (°C)
14 ° 14 ° 14 ° 14 ° 15 ° 15 ° 14 ° 14 °
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Feels like temperature (°C) Expand
11 ° 11 ° 11 ° 11 ° 12 ° 12 ° 11 ° 11 °
Wind direction, speed & gust (mph) Expand
SSW 16 27 SW 17 29 SW 17 28 SW 17 30 SW 18 32 SW 17 30 SW 15 26 SW 15 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G G G G
Humidity Expand
92% 94% 93% 90% 87% 86% 89% 88%
UV index Expand
1 1 1
Sunrise: 07:58 Sunset: 18:02 Moon phase: Waxing crescent Air pollution: 3
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
10% 10% 10% 10% 20% 20% 20% 20%
Temperature (°C)
13 ° 13 ° 13 ° 14 ° 14 ° 14 ° 14 ° 14 °
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Feels like temperature (°C) Expand
11 ° 11 ° 11 ° 11 ° 12 ° 12 ° 11 ° 11 °
Wind direction, speed & gust (mph) Expand
SW 14 24 SW 14 23 SW 13 22 SSW 14 23 SSW 15 26 SSW 14 24 SSW 13 22 SSW 14 23
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G G G G
Humidity Expand
89% 90% 90% 88% 85% 85% 88% 89%
UV index Expand
1 1 1
Sunrise: 08:00 Sunset: 18:00 Moon phase: Waxing crescent
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Light rain Cloudy Light rain Cloudy Cloudy Cloudy Cloudy Cloudy
50% 20% 50% 20% 20% 20% 10% 10%
Temperature (°C)
13 ° 13 ° 13 ° 14 ° 14 ° 14 ° 14 ° 13 °
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Feels like temperature (°C) Expand
11 ° 11 ° 11 ° 11 ° 12 ° 12 ° 11 ° 11 °
Wind direction, speed & gust (mph) Expand
SSW 15 25 SSW 14 24 SSW 14 24 SSW 14 25 SSW 15 27 SSW 14 25 SSW 13 23 SSW 13 24
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G G G VG
Humidity Expand
89% 90% 90% 89% 86% 86% 88% 85%
UV index Expand
1 1 1
Sunrise: 08:02 Sunset: 17:58 Moon phase: Waxing crescent

Issued at:

Forecast Summary

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

Wales

Headline:

Mainly dry and cloudy today. Turning wet and windy tonight.

Today:

Largely cloudy with a few outbreaks of rain possible. However, by this afternoon a few bright spells are expected. Later a band of wet and windy weather will arrive in the west and steadily spread east with coastal gales likely. Maximum temperature 14 °C.

Tonight:

Rain clears to the east during the first part of the night with heavy, blustery showers following behind. Turning very windy across all parts with severe gales possible around coasts. Minimum temperature 9 °C.

Saturday:

A very windy day with gales for many or severe gales in exposed coastal areas, giving a cool feel. There will also be heavy, blustery showers in all parts. Maximum temperature 14 °C.

Outlook for Sunday to Tuesday:

Winds gradually ease for Sunday which will be a breezy day with some blustery showers. Monday and Tuesday will bring breezy and often wet weather but it will become milder.

Updated: 02:17 on Fri 20 Oct 2017 BST

UK forecast for the next 5 days

Headline:

A lot of dry weather with some brightness. Windy later.

Today:

A cloudy and occasionally damp start to the day. However, some bright or sunny spells will emerge in the afternoon. Later in the day a zone of wet and windy weather arrives in western parts with coastal gales likely.

Tonight:

Winds strengthen, especially across the west with severe gales expected around coasts. Elsewhere a band of rain travels northeastwards and blustery showers or spells of rain will affect western parts.

Saturday:

Very windy with gales or severe gales in places, especially in the south and west. Bands of heavy showers or longer spells of rain will move across most parts.

Outlook for Sunday to Tuesday:

Improving picture on Sunday as wind and rain ease. Remaining breezy but mild next week with further rain, especially in the south. Becoming brighter and more showery in the north.

Updated: 02:13 on Fri 20 Oct 2017 BST

Outlook for the UK over the next 6-30 days

UK Outlook for Tuesday 24 Oct 2017 to Thursday 2 Nov 2017:

Tuesday and Wednesday look generally rather windy with gales possible in exposed areas, especially in the northwest. There will be showers or longer spells of rain for many, perhaps persistent in the south. Confidence in the forecast reduces during the remainder of October into early November. However, a northwest to southeast split is most likely. The northwest should continue with some wet and windy weather interspersed by brief brighter, showery interludes, whilst the southeast will be best placed to have more prolonged drier spells. Temperatures are most likely to be slightly above normal. Having said this there is a chance of more settled, colder conditions becoming established with morning fog patches, especially in the south.

UK Outlook for Friday 3 Nov 2017 to Friday 17 Nov 2017:

Confidence in the forecast during this period is very low. However, on balance it appears that the early part of November will most likely be changeable with near average temperatures. There is an increasing chance of more prolonged settled spells developing by the end of the first week of November, which may continue into mid month, especially in the south. This would lead to an increased chance of frost and fog. However, northern areas could hold onto more in the way of wind and rain at times. Temperatures should stay mostly near or perhaps slightly above average, although probably dipping to below average in any more settled spells.

Updated: 02:13 on Fri 20 Oct 2017 BST

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