Holy Island Weather Forecast, Isle of Anglesey

Today 17 Nov Wales

A dry and sunny day to come for most of Wales but Anglesey and Gwynedd may be somewhat cloudier at times. Breezy in the west at first but northerly winds becoming light by the afternoon. Feeling chilly despite the sunshine. Maximum Temperature 8C.

Tonight 17 Nov Wales

Dry and clear this evening and turning cold with a frost developing in places. Becoming cloudier overnight with temperatures probably recovering somewhat by the morning, and a few showers developing across the northwest, possibly wintry on higher hills. Minimum Temperature -1C.

Tue 18 Nov Wales

A cloudier day with isolated showers through the morning and perhaps more widespread showers or longer spells of rain during the afternoon. Continuing to feel chilly as winds gradually strengthen. Maximum Temperature 10C.

Wed 19 Nov Wales

Wintry showers on Wednesday and Thursday, becoming increasingly confined to the west later, often sunny elsewhere. Fine on Friday, then rain arriving overnight. Much colder with overnight frost and ice.

Thu 20 Nov Wales

Wintry showers on Wednesday and Thursday, becoming increasingly confined to the west later, often sunny elsewhere. Fine on Friday, then rain arriving overnight. Much colder with overnight frost and ice.

Fri 21 Nov Wales

Wintry showers on Wednesday and Thursday, becoming increasingly confined to the west later, often sunny elsewhere. Fine on Friday, then rain arriving overnight. Much colder with overnight frost and ice.

Sat 22 Nov Wales

Atlantic weather fronts will continue to spread east bringing spells of rain, potentially quite widely. More showery conditions will likely follow but there will be some brighter spells at times. The showery conditions will likely persist for a few subsequent days, though there is some risk of Atlantic frontal systems moving in from the west at times. Temperatures will be a little below normal. A westerly dominated pattern will likely persist through to the end of November with outbreaks of rain or showers and temperatures near to or a little below normal. There could however still be some wintry showers at times in the north. Areas if low pressure may bring longer spells of rain and periods of strong winds at times.

Sun 23 Nov Wales

Atlantic weather fronts will continue to spread east bringing spells of rain, potentially quite widely. More showery conditions will likely follow but there will be some brighter spells at times. The showery conditions will likely persist for a few subsequent days, though there is some risk of Atlantic frontal systems moving in from the west at times. Temperatures will be a little below normal. A westerly dominated pattern will likely persist through to the end of November with outbreaks of rain or showers and temperatures near to or a little below normal. There could however still be some wintry showers at times in the north. Areas if low pressure may bring longer spells of rain and periods of strong winds at times.

Holy Island Weather Forecast

Today 17 Nov Wales

Tonight 17 Nov Wales

Tue 18 Nov Wales

Wed 19 Nov Wales

Thu 20 Nov Wales

Fri 21 Nov Wales

Sat 22 Nov Wales

Sun 23 Nov Wales

Temperature Forecast Met Office

Temperature Real-Time

Dublin Radar

National Satellite

National Synoptic

Holy Island Temperature Statistics

November Temperature

Valley (3km)

Lowest 10 January, 2025

Average 2025

Highest 12 July, 2025

Lowest 17 October, 2025

Average October

Highest 3 October, 2025

Lowest 14 November, 2025

Average November

Highest 6 November, 2025

Climate (2020–Present)

Valley (3km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025