Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 73°F. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Wednesday
30th Jul
73

63

5

5
Thursday
31st Jul
75

63

6

2
Friday
1st Aug
73

63

10

5
Saturday
2nd Aug
66

57

8

5
Sunday
3rd Aug
75

55

1

6

5-day weather forecast updated at 04:01 on Tuesday 29th 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 Wednesday 30th July 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 73°F, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

73
°F maximum temperature
63
°F minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
mph wind from NW

Portsmouth weather for Thursday 31st July 2025

Expect sunshine and showers in Portsmouth, England with a maximum temperature of 75°F, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 12 mph from the west.

75
°F maximum temperature
63
°F minimum temperature
sunshine and showers
6
hours of sunshine
2
UV index (Low)
70
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
12
mph wind from W

Portsmouth weather for Friday 1st August 2025

Expect scattered clouds in Portsmouth, England with a maximum temperature of 73°F, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north-west.

73
°F maximum temperature
63
°F minimum temperature
scattered clouds
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
73
°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 66°F, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north-west.

66
°F maximum temperature
57
°F minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
9
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 75°F, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 40% chance of some rain and a moderate breeze of 14 mph from the west.