Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 22°C. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Saturday
2nd Aug
22

14

8

4
Sunday
3rd Aug
22

16

3

3
Monday
4th Aug
21

17

3

4
Tuesday
5th Aug
22

15

9

6
Wednesday
6th Aug
20

14

13

6

5-day weather forecast updated at 04:02 on Saturday 2nd August 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 2nd August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

22
°C maximum temperature
14
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from NW

Portsmouth weather for Sunday 3rd August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the west.

22
°C maximum temperature
16
°C minimum temperature
broken clouds
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
25
kph wind from W

Portsmouth weather for Monday 4th August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the south-west.

21
°C maximum temperature
17
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
35
kph wind from SW

Portsmouth weather for Tuesday 5th August 2025

Expect scattered clouds in Portsmouth, England with a maximum temperature of 22°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north-west.

22
°C maximum temperature
15
°C minimum temperature
scattered clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
22
°C wind chill
23
kph wind from NW

Portsmouth weather for Wednesday 6th August 2025

Expect scattered clouds in Portsmouth, England with a maximum temperature of 20°C, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.