Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 31°C. Select a day from the live weather forecast for Portsmouth, Dominica for more weather parameters.

Friday
21st Aug
31

27

7

11
Saturday
22nd Aug
30

27

7

10
Sunday
23rd Aug
31

26

6

11
Monday
24th Aug
31

27

6

11
Tuesday
25th Aug
31

27

7

11

5-day weather forecast updated at 04:03 on Friday 21st August 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 Friday 21st August 2026

Expect broken clouds in Portsmouth, Dominica with a maximum temperature of 31°C, moderate 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.

31
°C maximum temperature
27
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from E

Portsmouth weather for Saturday 22nd August 2026

Expect broken clouds in Portsmouth, Dominica with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
broken clouds
7
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from E

Portsmouth weather for Sunday 23rd August 2026

Expect isolated thunderstorms in Portsmouth, Dominica with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 17 kph from the east.

31
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
53
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Portsmouth weather for Monday 24th August 2026

Expect isolated thunderstorms in Portsmouth, Dominica with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 65% chance of some rain and a gentle breeze of 15 kph from the east.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
65
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from E

Portsmouth weather for Tuesday 25th August 2026

Expect isolated thunderstorms in Portsmouth, Dominica with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 21 kph from the east.