Portland Harbour Weather Forecast, Dorset

Today 23 Apr South West England

A cloudy and breezy start for many on Wednesday with further spells of rain or sharp showers, these soon clearing with sunny spells developing into the afternoon. Feeling warm in the sunshine and winds easing later. Maximum Temperature 17C.

Tonight 23 Apr South West England

Dry overnight with clear spells allowing mist and fog patches to form by dawn. Turning chilly under clear skies with a patchy rural frost possible. Minimum Temperature 3C.

Thu 24 Apr South West England

Mist and fog soon clearing leaving a dry and mostly bright or sunny day, though cloudier in the far west later. Light winds and feeling pleasant in any sunshine. Maximum Temperature 17C.

Fri 25 Apr South West England

Increasingly cloudy for all on Friday, as rain moves slowly but erratically in from the west into Saturday. Becoming drier and warmer on Sunday with some bright or sunny spells.

Sat 26 Apr South West England

Increasingly cloudy for all on Friday, as rain moves slowly but erratically in from the west into Saturday. Becoming drier and warmer on Sunday with some bright or sunny spells.

Sun 27 Apr South West England

Increasingly cloudy for all on Friday, as rain moves slowly but erratically in from the west into Saturday. Becoming drier and warmer on Sunday with some bright or sunny spells.

Mon 28 Apr South West England

Starting off with something of a northwest to southeast split; higher pressure located towards the southeast should bring fine and increasingly warm conditions across at least southern UK, whilst there is a greater chance of periods of cloud, rain and stronger winds affecting the north. There will be fine weather here at times as well too however. There's a small chance that fine and very warm weather could extend right across the country early next week, but it's more likely that cloud/rain in the northwest will sink southeast introducing more changeable and cooler conditions for a time mid-week. It then becomes roughly equal chances that we see a resumption of mainly fine and dry conditions versus a continuation of more changeable weather with a mixture of rain and drier interludes.

Tue 29 Apr South West England

Starting off with something of a northwest to southeast split; higher pressure located towards the southeast should bring fine and increasingly warm conditions across at least southern UK, whilst there is a greater chance of periods of cloud, rain and stronger winds affecting the north. There will be fine weather here at times as well too however. There's a small chance that fine and very warm weather could extend right across the country early next week, but it's more likely that cloud/rain in the northwest will sink southeast introducing more changeable and cooler conditions for a time mid-week. It then becomes roughly equal chances that we see a resumption of mainly fine and dry conditions versus a continuation of more changeable weather with a mixture of rain and drier interludes.

Portland Harbour Weather Forecast

Today 23 Apr South West England

Tonight 23 Apr South West England

Thu 24 Apr South West England

Fri 25 Apr South West England

Sat 26 Apr South West England

Sun 27 Apr South West England

Mon 28 Apr South West England

Tue 29 Apr South West England

Temperature Forecast Met Office

Temperature Real-Time

Dean Hill (Wiltshire) Radar

National Satellite

National Synoptic

Portland Harbour Temperature Statistics

April Temperature

Isle Of Portland (6km)

Lowest 8 January, 2025

Average 2025

Highest 5 April, 2025

Lowest 16 March, 2025

Average March

Highest 30 March, 2025

Lowest 10 April, 2025

Average April

Highest 5 April, 2025

Climate (2020–Present)

Isle Of Portland (6km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025