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Weather in Caernarfon · MET Norway forecast + Met Office averages

Caernarfon’s November turns cool today: 9 degrees

In a typical November, days climb to about 11°C (52°F) and nights sink to 6°C (42°F), the yardstick for Caernarfon’s forecast. No rain is due today; the wind stays light, 9 mph at most, and the low is 6°C (43°F). The heaviest rain of the week is due on Wednesday, around 4 mm.

Winter 9°/3°CSpring 13°/6°CSummer 19°/12°CAutumn 14°/8°C
Right now
9°C
Partly cloudy · 49°F
High 9°C · Low 6°C · Wind 9 mph
Today 3°C cooler than a normal 5 November
Sunrise 07:22 · sunset 16:38
Today
9°C / 6°C
A normal 5 November: 12°C / 7°C
Rain, next 24 hours
0.6 mm
Some rain
Wind
9 mph
From the east · up to 9 mph today
Humidity
71%
relative humidity
Daylight
9 h 15 min
07:22 to 16:38
Hour by hour · °C

The next 24 hours in Caernarfon

Expect 9°C at the warmest, around 15:00, and 5°C at the coolest, around 05:00. Wettest around 09:00 (0.5 mm in the hour).

15:00 · 9°C (49°F) · Partly cloudy · 0.0 mm · wind 9 mph9°Now16:00 · 9°C (48°F) · Cloudy · 0.0 mm · wind 7 mph17:00 · 9°C (47°F) · Cloudy · 0.0 mm · wind 6 mph9°18:00 · 7°C (45°F) · Partly cloudy · 0.0 mm · wind 6 mph18:0019:00 · 7°C (44°F) · Cloudy · 0.0 mm · wind 6 mph7°20:00 · 7°C (44°F) · Cloudy · 0.0 mm · wind 6 mph21:00 · 7°C (44°F) · Partly cloudy · 0.0 mm · wind 6 mph7°21:0022:00 · 7°C (45°F) · Partly cloudy · 0.0 mm · wind 6 mph23:00 · 6°C (43°F) · Partly cloudy · 0.0 mm · wind 6 mph6°00:00 · 6°C (42°F) · Partly cloudy · 0.0 mm · wind 7 mph00:0001:00 · 6°C (43°F) · Partly cloudy · 0.0 mm · wind 7 mph6°02:00 · 6°C (43°F) · Partly cloudy · 0.0 mm · wind 7 mph03:00 · 6°C (42°F) · Partly cloudy · 0.0 mm · wind 7 mph6°03:0004:00 · 6°C (42°F) · Partly cloudy · 0.0 mm · wind 6 mph05:00 · 5°C (41°F) · Partly cloudy · 0.0 mm · wind 6 mph5°06:00 · 5°C (42°F) · Cloudy · 0.0 mm · wind 5 mph06:0007:00 · 6°C (42°F) · Partly cloudy · 0.0 mm · wind 5 mph6°08:00 · 6°C (42°F) · Cloudy · 0.0 mm · wind 5 mph09:00 · 7°C (45°F) · Rain · 0.5 mm · wind 6 mph0.5 mm7°09:0010:00 · 7°C (45°F) · Light rain · 0.1 mm · wind 6 mph11:00 · 8°C (46°F) · Partly cloudy · 0.0 mm · wind 5 mph8°12:00 · 9°C (47°F) · Partly cloudy · 0.0 mm · wind 7 mph12:0013:00 · 9°C (48°F) · Partly cloudy · 0.0 mm · wind 6 mph9°14:00 · 9°C (49°F) · Partly cloudy · 0.0 mm · wind 5 mph
TemperatureRain (mm in the hour)Night
7 days · °C

The week ahead, against a normal week

Cooler than normal most of the week. Tap a day for more.

Today5 NovCloudydry6°9°−3°

Thursday 5 November: Cloudy, a high of 9°C (49°F) and a low of 6°C (43°F); no rain expected; wind up to 9 mph.

A normal 5 November in Caernarfon: high 12°C, low 7°C.

Tomorrow6 NovRain0.6 mm rain5°10°−3°

Friday 6 November: Rain, a high of 10°C (49°F) and a low of 5°C (41°F); 0.6 mm of rain; wind up to 7 mph.

A normal 6 November in Caernarfon: high 12°C, low 7°C.

Sat7 NovCloudydry6°10°−3°

Saturday 7 November: Cloudy, a high of 10°C (49°F) and a low of 6°C (42°F); no rain expected; wind up to 8 mph.

A normal 7 November in Caernarfon: high 12°C, low 6°C.

Sun8 NovPartly cloudy0.4 mm rain7°9°−3°

Sunday 8 November: Partly cloudy, a high of 9°C (48°F) and a low of 7°C (44°F); 0.4 mm of rain; wind up to 8 mph.

A normal 8 November in Caernarfon: high 12°C, low 6°C.

Mon9 NovSunnydry4°9°−3°

Monday 9 November: Sunny, a high of 9°C (47°F) and a low of 4°C (39°F); no rain expected; wind up to 5 mph.

A normal 9 November in Caernarfon: high 12°C, low 6°C.

Tue10 NovSunnydry4°9°−3°

Tuesday 10 November: Sunny, a high of 9°C (48°F) and a low of 4°C (40°F); no rain expected; wind up to 6 mph.

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

Wed11 NovLight rain3.5 mm rain3°10°−2°

Wednesday 11 November: Light rain, a high of 10°C (49°F) and a low of 3°C (38°F); 3.5 mm of rain; wind up to 4 mph.

A normal 11 November in Caernarfon: high 12°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 CaernarfonFlood risk in the town, and where Natural Resources Wales posts its flood warnings.Caernarfon’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 5 November, 15:10. 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.