Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 17°C. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Sunday
3rd May
17

11

6

4
Monday
4th May
17

11

6

3
Tuesday
5th May
16

12

4

4
Wednesday
6th May
15

10

5

3
Thursday
7th May
15

9

3

4

5-day weather forecast updated at 04:01 on Sunday 3rd May 2026 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 Sunday 3rd May 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

17
°C maximum temperature
11
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from W

Portsmouth weather for Monday 4th May 2026

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 10 kph from the south.

17
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
3
UV index (Moderate)
25
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
10
kph wind from S

Portsmouth weather for Tuesday 5th May 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

16
°C maximum temperature
12
°C minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from NE

Portsmouth weather for Wednesday 6th May 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

15
°C maximum temperature
10
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
15
°C wind chill
18
kph wind from E

Portsmouth weather for Thursday 7th May 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.