Snowdonia National Park Weather Forecast, Gwynedd

Today 28 Nov Wales

Any brightness soon replaced by frequent showers, these heavy at times and merging into longer spells of rain. Becoming drier later in the afternoon with some sunny spells. Windy and feeling slightly fresher than Thursday. Maximum Temperature 12C.

Tonight 28 Nov Wales

Overcast and wet tonight, with rain moving in quickly from the west, heavy and persistent for many. Becoming windy too, especially around the southern coast where near-gale force winds are possible by dawn. Chilly in rural spots, but frost free. Minimum Temperature 2C.

Sat 29 Nov Wales

Widely wet and windy with heavy, persistent rain soon replaced by showers spreading in from the northwest. Staying rather breezy, but feeling cooler in northwesterly winds. Maximum Temperature 9C.

Sun 30 Nov Wales

A chillier but brighter and drier day on Sunday with an early frost. Turning wet and windy on Monday, with sunshine and showers on Tuesday. Temperatures generally around average.

Mon 1 Dec Wales

A chillier but brighter and drier day on Sunday with an early frost. Turning wet and windy on Monday, with sunshine and showers on Tuesday. Temperatures generally around average.

Tue 2 Dec Wales

A chillier but brighter and drier day on Sunday with an early frost. Turning wet and windy on Monday, with sunshine and showers on Tuesday. Temperatures generally around average.

Wed 3 Dec Wales

Changeable and often unsettled conditions are expected to affect the UK during this period. The most likely weather pattern is one of successive areas of low pressure moving in from the west or southwest and then tending to become rather slow-moving in the vicinity of the UK. This means a story of showers or longer spells of rain, with almost anywhere seeing some heavy rainfall at times, but the greatest chance of wetter than normal conditions will be in the west. Any snowfall is most likely over higher ground in the north. Strong winds are also a possibility from time to time, again perhaps more likely in western areas. Given the changeable pattern originating from the Atlantic, temperatures will most likely be close to or a little above normal.

Thu 4 Dec Wales

Changeable and often unsettled conditions are expected to affect the UK during this period. The most likely weather pattern is one of successive areas of low pressure moving in from the west or southwest and then tending to become rather slow-moving in the vicinity of the UK. This means a story of showers or longer spells of rain, with almost anywhere seeing some heavy rainfall at times, but the greatest chance of wetter than normal conditions will be in the west. Any snowfall is most likely over higher ground in the north. Strong winds are also a possibility from time to time, again perhaps more likely in western areas. Given the changeable pattern originating from the Atlantic, temperatures will most likely be close to or a little above normal.

Snowdonia National Park Weather Forecast

Today 28 Nov Wales

Tonight 28 Nov Wales

Sat 29 Nov Wales

Sun 30 Nov Wales

Mon 1 Dec Wales

Tue 2 Dec Wales

Wed 3 Dec Wales

Thu 4 Dec Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

Snowdonia National Park Temperature Statistics

November Temperature

Capel Curig Saws (26km)

Lowest 9 January, 2025

Average 2025

Highest 12 July, 2025

Lowest 17 October, 2025

Average October

Highest 13 October, 2025

Lowest 25 November, 2025

Average November

Highest 5 November, 2025

Climate (2020–Present)

Capel Curig Saws (26km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025