Chesil Beach Weather Forecast, Dorset

Today 17 Dec South West England

A dull start as a rain band spreads eastwards, bringing widespread heavy downpours, accompanied by strong winds and perhaps coastal gales at times. Conditions worst felt in coastal regions and over higher ground. Travel disruption and localised flooding possible. Maximum Temperature 12C.

Tonight 17 Dec South West England

Remaining unsettled through the evening as rain continues to spread eastwards, though some clear and drier spells emerging in the west overnight. A milder night than previous. Often breezy. Minimum Temperature 5C.

Thu 18 Dec South West England

A murky start, as further rain and strong winds push northeastwards through the day, bringing further heavy and prolonged downpours. Some brighter spells possible in the west through the afternoon. Maximum Temperature 12C.

Fri 19 Dec South West England

Friday brings a brighter day with winds easing, though the odd shower remains possible. Unsettled again thereafter, as further bands of rain with strengthening winds move in from the west.

Sat 20 Dec South West England

Friday brings a brighter day with winds easing, though the odd shower remains possible. Unsettled again thereafter, as further bands of rain with strengthening winds move in from the west.

Sun 21 Dec South West England

Friday brings a brighter day with winds easing, though the odd shower remains possible. Unsettled again thereafter, as further bands of rain with strengthening winds move in from the west.

Mon 22 Dec South West England

Unsettled conditions are likely to continue at first, with low pressure probably centred somewhere to the southwest of the UK, whilst high pressure tries to nose in from the east across northern areas. This means a broadly easterly flow becoming established, whilst periods of rain or showers becoming increasingly confined to southern or southwestern parts. With time, high pressure is signalled to become rather more dominant with more in the way dry, settled weather anticipated. With this, temperatures will probably lower a little compared to recent weeks, closer to or perhaps a little below average for some. Overnight frost and fog or freezing fog could become more widespread, though any particularly cold conditions look unlikely at this stage.

Tue 23 Dec South West England

Unsettled conditions are likely to continue at first, with low pressure probably centred somewhere to the southwest of the UK, whilst high pressure tries to nose in from the east across northern areas. This means a broadly easterly flow becoming established, whilst periods of rain or showers becoming increasingly confined to southern or southwestern parts. With time, high pressure is signalled to become rather more dominant with more in the way dry, settled weather anticipated. With this, temperatures will probably lower a little compared to recent weeks, closer to or perhaps a little below average for some. Overnight frost and fog or freezing fog could become more widespread, though any particularly cold conditions look unlikely at this stage.

Chesil Beach Weather Forecast

Today 17 Dec South West England

Tonight 17 Dec South West England

Thu 18 Dec South West England

Fri 19 Dec South West England

Sat 20 Dec South West England

Sun 21 Dec South West England

Mon 22 Dec South West England

Tue 23 Dec South West England

Temperature Forecast Met Office

Temperature Real-Time

Cobbacombe Cross (Devon) Radar

National Satellite

National Synoptic

Chesil Beach Temperature Statistics

December Temperature

Isle Of Portland (12km)

Lowest 8 January, 2025

Average 2025

Highest 15 August, 2025

Lowest 21 November, 2025

Average November

Highest 13 November, 2025

Lowest 4 December, 2025

Average December

Highest 9 December, 2025

Climate (2020–Present)

Isle Of Portland (12km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025