Portsmouth Harbour Entrance Weather Forecast
- 19
- 24
Sunny day
- 17
- 22
Sunny day
- 18
- 22
Sunny day
- 16
- 22
Partly cloudy
- 16
- 20
Light rain shower
- 17
- 21
Partly cloudy
Today 11 Jul London and South East England
Clear skies and prolonged sunshine throughout Friday. Feeling hot as light winds continue, although feeling slightly cooler along the coast once again. Chance of mist here. Maximum Temperature 32C.
Portsmouth Harbour Entrance Temperature Statistics
July Temperature
Thorney Island (13km)
Lowest 3 July, 2025
10.3 °CAverage July
18.4 °CHighest 1 July, 2025
27.4 °C
Climate (2020–Present)
Thorney Island (13km)
Average Low 2020–2025
8.6 °CAverage 2020–2025
11.9 °CAverage High 2020–2025
15.1 °C