Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 68°F. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Thursday
31st Jul
68

63

3

3
Friday
1st Aug
70

57

8

4
Saturday
2nd Aug
72

57

7

5
Sunday
3rd Aug
72

61

3

3
Monday
4th Aug
68

61

3

4

5-day weather forecast updated at 04:01 on Thursday 31st 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 Thursday 31st July 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 68°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the west.

68
°F maximum temperature
63
°F minimum temperature
broken clouds
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
mph wind from W

Portsmouth weather for Friday 1st August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 70°F, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north-west.

70
°F maximum temperature
57
°F minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
70
°F wind chill
13
mph wind from NW

Portsmouth weather for Saturday 2nd August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

72
°F maximum temperature
57
°F minimum temperature
broken clouds
7
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
72
°F wind chill
11
mph wind from NW

Portsmouth weather for Sunday 3rd August 2025

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 72°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and a moderate breeze of 17 mph from the west.

72
°F maximum temperature
61
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
35
% chance of some rain
<5
mm of rainfall expected
72
°F wind chill
17
mph wind from W

Portsmouth weather for Monday 4th August 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 68°F, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the south-west.