Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 28°C. Select a day from the live weather forecast for Portsmouth, Dominica for more weather parameters.

Thursday
12th Mar
28

22

7

11
Friday
13th Mar
28

23

6

11
Saturday
14th Mar
28

23

6

11
Sunday
15th Mar
27

23

6

11
Monday
16th Mar
28

24

6

11

5-day weather forecast updated at 04:03 on Thursday 12th March 2026 GMT

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The 5-day weather forecast for Dominica (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 Thursday 12th March 2026

Expect scattered clouds in Portsmouth, Dominica with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the east.

28
°C maximum temperature
22
°C minimum temperature
scattered clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
23
kph wind from E

Portsmouth weather for Friday 13th March 2026

Expect sunshine and showers in Portsmouth, Dominica with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 17% chance of some rain and a moderate breeze of 21 kph from the east.

28
°C maximum temperature
23
°C minimum temperature
sunshine and showers
6
hours of sunshine
11
UV index (Extreme)
17
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
21
kph wind from E

Portsmouth weather for Saturday 14th March 2026

Expect broken clouds in Portsmouth, Dominica with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the east.

28
°C maximum temperature
23
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
24
kph wind from E

Portsmouth weather for Sunday 15th March 2026

Expect sunshine and showers in Portsmouth, Dominica with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 26 kph from the east.