Portsmouth weather live forecast

Tomorrow's maximum temperature in Portsmouth is expected to be 28°C.

Saturday
12th Jul

28

19

16
Sunday
13th Jul

27

17

14
Monday
14th Jul

24

17

9
Tuesday
15th Jul

22

15

2
Wednesday
16th Jul

24

18

5

5-day weather forecast updated at 04:01 on Saturday 12th July 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 12th July 2025

Expect clear skies in Portsmouth, England with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the south-east.

28
°C maximum temperature
19
°C minimum temperature
clear skies
16
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
3
kph wind from SE

Portsmouth weather for Sunday 13th July 2025

Expect scattered clouds in Portsmouth, England with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the south-east.

27
°C maximum temperature
17
°C minimum temperature
scattered clouds
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
3
kph wind from SE

Portsmouth weather for Monday 14th July 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 24°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-west.

24
°C maximum temperature
17
°C minimum temperature
broken clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from SW

Portsmouth weather for Tuesday 15th July 2025

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a light breeze of 8 kph from the south-west.

22
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
5
UV index (Moderate)
45
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from SW

Portsmouth weather for Wednesday 16th July 2025

Expect mostly cloudy with rain in Portsmouth, England with a maximum temperature of 24°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 33% chance of some rain and a light breeze of 7 kph from the south-west.