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Businesses, Porthmadog High Street (II)Photo: Bill Harrison · CC BY-SA 2.0
Weather in Porthmadog · MET Norway forecast + Met Office averages

Weather in Porthmadog: cool for November today, up to 8 degrees

In Porthmadog, the November norm is a high of 11°C (53°F) and a low of 6°C (43°F). Any rain today should be slight, though the wind picks up to 13 mph; the low is 8°C (47°F). Of the days after that, Sunday brings the most rain: about 10 mm.

Winter 9°/3°CSpring 13°/6°CSummer 19°/12°CAutumn 15°/9°C
Right now
8°C
Cloudy · 47°F
High 8°C · Low 8°C · Wind 13 mph
Today 4°C cooler than a normal 10 November
Sunrise 07:30 · sunset 16:30
Today
8°C / 8°C
A normal 10 November: 12°C / 6°C
Rain, next 24 hours
0.7 mm
Some rain
Wind
13 mph
From the east · up to 13 mph today
Humidity
79%
relative humidity
Daylight
8 h 59 min
07:30 to 16:30
Hour by hour · °C

The next 24 hours in Porthmadog

Temperatures top out near 13:00 (10°C) and dip lowest near 01:00 (7°C). Wettest around 00:00 (0.3 mm in the hour).

14:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph8°Now15:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph16:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 12 mph8°17:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph17:0018:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph8°19:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph20:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 12 mph8°20:0021:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 12 mph22:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 13 mph8°23:00 · 8°C (47°F) · Light rain · 0.2 mm · wind 12 mph23:0000:00 · 8°C (46°F) · Light rain · 0.3 mm · wind 12 mph0.3 mm8°01:00 · 7°C (45°F) · Cloudy · 0.0 mm · wind 12 mph7°02:00 · 7°C (45°F) · Cloudy · 0.0 mm · wind 13 mph7°02:0003:00 · 7°C (45°F) · Cloudy · 0.0 mm · wind 13 mph04:00 · 7°C (45°F) · Light rain · 0.2 mm · wind 14 mph7°05:00 · 7°C (45°F) · Cloudy · 0.0 mm · wind 13 mph05:0006:00 · 7°C (45°F) · Cloudy · 0.0 mm · wind 12 mph7°07:00 · 8°C (46°F) · Cloudy · 0.0 mm · wind 11 mph08:00 · 8°C (46°F) · Cloudy · 0.0 mm · wind 10 mph8°08:0009:00 · 8°C (46°F) · Cloudy · 0.0 mm · wind 10 mph10:00 · 8°C (47°F) · Cloudy · 0.0 mm · wind 10 mph8°11:00 · 9°C (48°F) · Mostly sunny · 0.0 mm · wind 10 mph11:0012:00 · 9°C (49°F) · Partly cloudy · 0.0 mm · wind 9 mph9°13:00 · 10°C (49°F) · Partly cloudy · 0.0 mm · wind 9 mph10°
TemperatureRain (mm in the hour)Night
7 days · °C

The week ahead, against a normal week

Most days run cooler than normal for the date. Tap a day for more.

Today10 NovCloudy0.2 mm rain8°8°−4°

Tuesday 10 November: Cloudy, a high of 8°C (47°F) and a low of 8°C (47°F); 0.2 mm of rain (part of the day); wind up to 13 mph.

A normal 10 November in Porthmadog: high 12°C, low 6°C.

Tomorrow11 NovCloudy0.5 mm rain5°10°−2°

Wednesday 11 November: Cloudy, a high of 10°C (49°F) and a low of 5°C (41°F); 0.5 mm of rain; wind up to 14 mph.

A normal 11 November in Porthmadog: high 12°C, low 6°C.

Thu12 NovSunnydry3°8°−4°

Thursday 12 November: Sunny, a high of 8°C (47°F) and a low of 3°C (37°F); no rain expected; wind up to 14 mph.

A normal 12 November in Porthmadog: high 12°C, low 6°C.

Fri13 NovCloudydry1°7°−5°

Friday 13 November: Cloudy, a high of 7°C (44°F) and a low of 1°C (34°F); no rain expected; wind up to 4 mph.

A normal 13 November in Porthmadog: high 12°C, low 6°C.

Sat14 NovCloudydry4°8°−3°

Saturday 14 November: Cloudy, a high of 8°C (47°F) and a low of 4°C (38°F); no rain expected; wind up to 8 mph.

A normal 14 November in Porthmadog: high 12°C, low 6°C.

Sun15 NovHeavy rain9.8 mm rain3°8°−3°

Sunday 15 November: Heavy rain, a high of 8°C (47°F) and a low of 3°C (38°F); 9.8 mm of rain; wind up to 7 mph.

A normal 15 November in Porthmadog: high 11°C, low 6°C.

Mon16 NovLight rain0.7 mm rain7°10°−2°

Monday 16 November: Light rain, a high of 10°C (49°F) and a low of 7°C (44°F); 0.7 mm of rain; wind up to 6 mph.

A normal 16 November in Porthmadog: high 11°C, low 6°C.

Normal range for the date (Met Office 1991–2020)Forecast low to high

Warnings and more

This page doesn’t repeat official warnings: check the Met Office before travelling in bad weather.

Met Office weather warningsSevere weather warnings for wind, rain, snow, ice, fog and heat are issued by the Met Office, the UK’s official service.Flood warnings for PorthmadogFlood risk in the town, and where Natural Resources Wales posts its flood warnings.Porthmadog’s climateNormal temperatures, rain and frost month by month, from the Met Office’s 30-year averages.

Forecast: Data from MET Norway (Norwegian Meteorological Institute), CC BY 4.0; temperatures converted to °F, wind to mph and times to UK time by us, fetched 10 November, 14:29. Normals: Met Office HadUK-Grid 1991–2020 averages for the town (Contains Met Office data © Crown copyright, Open Government Licence v3.0). Sunrise and sunset are calculated from the town’s position.

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.