- Save up to £300 on all inclusive holidays to the Caribbean
- Discount varies by travel dates. 7 night minimum stay
- Travel before 31st December 2027 (inclusive)
St Lucia weather live forecast
Tomorrow's maximum temperature in St Lucia is expected to be 29°C.
-
Saturday
24th May
-
Sunday
25th May
-
Monday
26th May -
Tuesday
27th May -
Wednesday
28th May
5-day weather forecast updated at 04:00 on Saturday 24th May 2025 GMT
More about St Lucia
St Lucia by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for St Lucia
Show discount code
******DAY
******DAY
Expires at 23:59 on Wednesday 4th Jun 2025 · View all Sandals offers
Holiday resort finder
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
- Anse la Raye
- Cap Estate
- Castries
- Choc Bay
- Grand Anse
- Gros Islet
- Marigot Bay
- Morgan Bay
- Reduit Beach
- Rodney Bay
- Soufriere
- Vieux Fort
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 Saturday 24th May 2025
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 moderate breeze of 21 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
broken clouds
- hours of sunshine
- UV index (Extreme)
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Sunday 25th May 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 49% chance of some rain and a moderate breeze of 23 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Extreme)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Monday 26th May 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 23 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Tuesday 27th May 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 20 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Wednesday 28th May 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 19 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
- Save up to £300 on all inclusive holidays to the Caribbean
- Discount varies by travel dates. 7 night minimum stay
- Travel before 31st December 2027 (inclusive)
Show discount code
******DAY
******DAY
Expires at 23:59 on Wednesday 4th Jun 2025 · View all Sandals offers
Holiday resort finder
Metric (°C / mm) | Imperial (°F / inches)
More about St Lucia
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- easyJet holidays
- Love Holidays
- January sales
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport