Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 27°C. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Saturday
23rd May
27

17

10

UV6
Sunday
24th May
27

16

15

UV6
Monday
25th May
28

18

16

UV6
Tuesday
26th May
31

18

13

UV7
Wednesday
27th May
25

15

13

UV7

5-day weather forecast updated at 04:01 on Saturday 23rd 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 Saturday 23rd May 2026

Expect scattered clouds in Portsmouth, England with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the west.

27
°C maximum temperature
17
°C minimum temperature
scattered clouds
10
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from W

Portsmouth weather for Sunday 24th May 2026

Expect clear skies in Portsmouth, England with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

27
°C maximum temperature
16
°C minimum temperature
clear skies
15
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
10
kph wind from S

Portsmouth weather for Monday 25th May 2026

Expect clear skies in Portsmouth, England with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

28
°C maximum temperature
18
°C minimum temperature
clear skies
16
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
12
kph wind from SE

Portsmouth weather for Tuesday 26th May 2026

Expect scattered clouds in Portsmouth, England with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

31
°C maximum temperature
18
°C minimum temperature
scattered clouds
13
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

Portsmouth weather for Wednesday 27th May 2026

Expect scattered clouds in Portsmouth, England with a maximum temperature of 25°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.