Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 11°C. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Monday
15th Dec
11

10

1

0
Tuesday
16th Dec
11

4

0

0
Wednesday
17th Dec
10

2

0

0
Thursday
18th Dec
11

10

1

0
Friday
19th Dec
10

7

4

0

5-day weather forecast updated at 04:02 on Monday 15th 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 Monday 15th December 2025

Expect overcast skies in Portsmouth, England with a maximum temperature of 11°C and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south.

11
°C maximum temperature
10
°C minimum temperature
overcast skies
1
hour of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
29
kph wind from S

Portsmouth weather for Tuesday 16th December 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 11°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north.

11
°C maximum temperature
4
°C minimum temperature
broken clouds
0
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
11
°C wind chill
20
kph wind from N

Portsmouth weather for Wednesday 17th December 2025

Expect broken clouds in Portsmouth, England with a maximum temperature of 10°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the south.

10
°C maximum temperature
2
°C minimum temperature
broken clouds
0
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
31
kph wind from S

Portsmouth weather for Thursday 18th December 2025

Expect mostly cloudy with rain in Portsmouth, England with a maximum temperature of 11°C and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a strong breeze of 41 kph from the south.

11
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
84
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
41
kph wind from S

Portsmouth weather for Friday 19th December 2025

Expect sunshine and showers in Portsmouth, England with a maximum temperature of 10°C and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 22 kph from the south-west.