St Lucia weather live forecast

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

Monday
23rd Mar
29

25

5

11
Tuesday
24th Mar
29

25

5

11
Wednesday
25th Mar
29

25

7

11
Thursday
26th Mar
29

25

7

11
Friday
27th Mar
29

25

7

11

5-day weather forecast updated at 04:00 on Monday 23rd March 2026 GMT

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Destination

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

Top St Lucia destinations

Below are temperatures expected today at popular countries, regions and places in St Lucia. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

All St Lucia destinations

St Lucia weather forecast by day

Below are the detailed weather forecasts for St Lucia for the next 5 days. The forecasts shown are for Castries and may not represent the whole of St Lucia. Browse more destinations in St Lucia to view more weather forecasts.

St Lucia weather for Monday 23rd March 2026

Expect isolated thunderstorms in St Lucia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a gentle breeze of 13 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
32
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from E

St Lucia weather for Tuesday 24th March 2026

Expect broken clouds in St Lucia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
broken clouds
5
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from E

St Lucia weather for Wednesday 25th March 2026

Expect broken clouds in St Lucia with a maximum temperature of 29°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 19 kph from the east.