Seaton Beach Weather Forecast, Cornwall

Today 17 May South West England

A cool, cloudy start in many eastern counties this morning but sunnier in the west. Cloud gradually breaking up in the east leaving a warm day with widespread unbroken sunshine by the afternoon. Sea breezes may keep some coasts cooler. Maximum Temperature 22C.

Tonight 17 May South West England

Largely sunny and warm this evening, but cooling down after dark under clear skies. Patchy cloud and mist may develop by the morning. Turning chilly with localised rural grass frost. Minimum Temperature 5C.

Sun 18 May South West England

Any early mist or patchy cloud soon clearing to leave another sunny day. It will feel warm in the light winds and strong sunshine with high UV levels. Maximum Temperature 23C.

Mon 19 May South West England

Mostly dry early next week but cloudier than of late with a few heavy or thundery showers possible on Monday and Tuesday. Sunnier once more on Wednesday and staying warm.

Tue 20 May South West England

Mostly dry early next week but cloudier than of late with a few heavy or thundery showers possible on Monday and Tuesday. Sunnier once more on Wednesday and staying warm.

Wed 21 May South West England

Mostly dry early next week but cloudier than of late with a few heavy or thundery showers possible on Monday and Tuesday. Sunnier once more on Wednesday and staying warm.

Thu 22 May South West England

A generally dry and fine end to the working week with light winds and warm sunshine continuing across the United Kingdom. A few showers are possible, but the majority of places will be dry. Temperatures during this time are likely to continue to be above normal for the time of year. Into the bank holiday weekend and following week, a change in weather type is expected. More unsettled conditions are likely to develop, with weather systems moving in from the Atlantic. This will bring spells of rain to many areas, perhaps heavy at times, with a risk of strong winds in places. Drier and brighter intervals are likely between systems. Temperatures will probably be near normal or slightly above.

Fri 23 May South West England

A generally dry and fine end to the working week with light winds and warm sunshine continuing across the United Kingdom. A few showers are possible, but the majority of places will be dry. Temperatures during this time are likely to continue to be above normal for the time of year. Into the bank holiday weekend and following week, a change in weather type is expected. More unsettled conditions are likely to develop, with weather systems moving in from the Atlantic. This will bring spells of rain to many areas, perhaps heavy at times, with a risk of strong winds in places. Drier and brighter intervals are likely between systems. Temperatures will probably be near normal or slightly above.

Seaton Beach Weather Forecast

Today 17 May South West England

Tonight 17 May South West England

Sun 18 May South West England

Mon 19 May South West England

Tue 20 May South West England

Wed 21 May South West England

Thu 22 May South West England

Fri 23 May South West England

Temperature Forecast Met Office

Temperature Real-Time

Predannack (Cornwall) Radar

National Satellite

National Synoptic

Seaton Beach Temperature Statistics

May Temperature

Mount Batten (18km)

Lowest 3 January, 2025

Average 2025

Highest 1 May, 2025

Lowest 11 April, 2025

Average April

Highest 30 April, 2025

Lowest 6 May, 2025

Average May

Highest 1 May, 2025

Climate (2020–Present)

Mount Batten (18km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025