Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 12°C. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Wednesday
10th Dec
12

7

3

1
Thursday
11th Dec
11

7

2

0
Friday
12th Dec
12

10

3

0
Saturday
13th Dec
11

8

2

0
Sunday
14th Dec
11

10

3

0

5-day weather forecast updated at 04:02 on Monday 8th December 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 10th December 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 12°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-west.

12
°C maximum temperature
7
°C minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

Portsmouth weather for Thursday 11th December 2025

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 11°C and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a moderate breeze of 23 kph from the south.

11
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
34
% chance of some rain
<2
mm of rainfall expected
11
°C wind chill
23
kph wind from S

Portsmouth weather for Friday 12th December 2025

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 12°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 23 kph from the south-west.

12
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
67
% chance of some rain
<2
mm of rainfall expected
12
°C wind chill
23
kph wind from SW

Portsmouth weather for Saturday 13th December 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 11°C and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-west.

11
°C maximum temperature
8
°C minimum temperature
broken clouds
2
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

Portsmouth weather for Sunday 14th December 2025

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 11°C and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 49% chance of some rain and a fresh breeze of 30 kph from the south.