Ganllwyd Weather Forecast, Gwynedd LL40 2

Today 24 Dec Wales

Christmas Eve will be dry and settled. The morning will get off to a cloudy start, but some sunny spells will develop during the day. Feeling colder than of late, with a brisk easterly breeze blowing, adding to the chill. Maximum Temperature 5C.

Tonight 24 Dec Wales

Remaining dry during the evening and overnight, with variable, often large amounts of cloud. Still rather windy, though a slight frost is possible in some rural areas. Minimum Temperature 0C.

Thu 25 Dec Wales

Christmas Day will start quite cloudy again, but plenty of sunshine will develop during the day. It will remain blustery and it will feel cold out and about. Maximum Temperature 5C.

Fri 26 Dec Wales

Staying largely dry on Boxing Day and through the weekend with variable cloud cover. Some clear or sunny spells. Cold throughout with some night frost, and breezy for a while.

Sat 27 Dec Wales

Staying largely dry on Boxing Day and through the weekend with variable cloud cover. Some clear or sunny spells. Cold throughout with some night frost, and breezy for a while.

Sun 28 Dec Wales

Staying largely dry on Boxing Day and through the weekend with variable cloud cover. Some clear or sunny spells. Cold throughout with some night frost, and breezy for a while.

Mon 29 Dec Wales

High pressure is likely to dominate across the UK at the start of this period and through to the end of the year. This means that weather conditions will be largely settled and for many places it will remain dry. It may often be rather cloudy, but any rainfall that does develop is expected to be light with overall accumulations small. Winds will mostly be light with temperatures close to or slightly below normal. Into 2026, little change is anticipated through the first week of January, with settled and mainly dry conditions continuing for many parts of the UK. However, there is a small chance that more unsettled, wetter and milder weather could develop at times, particularly in the north.

Tue 30 Dec Wales

High pressure is likely to dominate across the UK at the start of this period and through to the end of the year. This means that weather conditions will be largely settled and for many places it will remain dry. It may often be rather cloudy, but any rainfall that does develop is expected to be light with overall accumulations small. Winds will mostly be light with temperatures close to or slightly below normal. Into 2026, little change is anticipated through the first week of January, with settled and mainly dry conditions continuing for many parts of the UK. However, there is a small chance that more unsettled, wetter and milder weather could develop at times, particularly in the north.

Ganllwyd Weather Forecast

Today 24 Dec Wales

Tonight 24 Dec Wales

Thu 25 Dec Wales

Fri 26 Dec Wales

Sat 27 Dec Wales

Sun 28 Dec Wales

Mon 29 Dec Wales

Tue 30 Dec Wales

Temperature Forecast Met Office

Temperature Real-Time

Clee Hill (Shropshire) Radar

National Satellite

National Synoptic

Ganllwyd Temperature Statistics

December Temperature

Lake Vyrnwy Saws (29km)

Lowest 9 January, 2025

Average 2025

Highest 11 July, 2025

Lowest 20 November, 2025

Average November

Highest 5 November, 2025

Lowest 16 December, 2025

Average December

Highest 9 December, 2025

Climate (2020–Present)

Lake Vyrnwy Saws (29km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025