Portsmouth weather live forecast

Tomorrow's maximum temperature in Portsmouth is expected to be 27°C.

Saturday
21st Jun

27

19

5
Sunday
22nd Jun

22

17

8
Monday
23rd Jun

22

16

7
Tuesday
24th Jun

23

16

2
Wednesday
25th Jun

23

17

1

5-day weather forecast updated at 04:01 on Saturday 21st June 2025 GMT

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The 5-day weather forecast for England (Portsmouth) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portsmouth weather forecast by day

Below are the detailed weather forecasts for Portsmouth for the next 5 days.

Portsmouth weather for Saturday 21st June 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.

27
°C maximum temperature
19
°C minimum temperature
broken clouds
5
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
21
kph wind from SE

Portsmouth weather for Sunday 22nd June 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the south-west.

22
°C maximum temperature
17
°C minimum temperature
broken clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
33
kph wind from SW

Portsmouth weather for Monday 23rd June 2025

Expect sunshine and showers in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 4% chance of some rain and a fresh breeze of 29 kph from the west.

22
°C maximum temperature
16
°C minimum temperature
sunshine and showers
7
hours of sunshine
6
UV index (High)
4
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
29
kph wind from W

Portsmouth weather for Tuesday 24th June 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 23°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south-west.

23
°C maximum temperature
16
°C minimum temperature
broken clouds
2
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
29
kph wind from SW

Portsmouth weather for Wednesday 25th June 2025

Expect cloudy with some rain in Portsmouth, England with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 21 kph from the south-west.