Gros Islet weather live forecast

Today's maximum temperature in Gros Islet is expected to be 29°C. Select a day from the live weather forecast for Gros Islet, St Lucia for more weather parameters.

Saturday
18th Apr
29

26

4

9
Sunday
19th Apr
29

26

6

11
Monday
20th Apr
30

26

7

11
Tuesday
21st Apr
30

26

7

11
Wednesday
22nd Apr
30

25

6

11

5-day weather forecast updated at 04:03 on Saturday 18th April 2026 GMT

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The 5-day weather forecast for St Lucia (Gros Islet) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Gros Islet weather forecast by day

Below are the detailed weather forecasts for Gros Islet for the next 5 days.

Gros Islet weather for Saturday 18th April 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 16 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
9
UV index (Very High)
82
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Gros Islet weather for Sunday 19th April 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 60% chance of some rain and a gentle breeze of 16 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
60
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Gros Islet weather for Monday 20th April 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 16 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
48
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Gros Islet weather for Tuesday 21st April 2026

Expect broken clouds in Gros Islet, St Lucia with a maximum temperature of 30°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 gentle breeze of 14 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

Gros Islet weather for Wednesday 22nd April 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 30°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 63% chance of some rain and a light breeze of 11 kph from the east.