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St Lucia weather live forecast
Tomorrow's maximum temperature in St Lucia is expected to be 86°F.
-
Thursday
3rd Jul
-
Friday
4th Jul -
Saturday
5th Jul -
Sunday
6th Jul -
Monday
7th Jul
5-day weather forecast updated at 04:00 on Thursday 3rd July 2025 GMT
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Recommended for St Lucia
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 Thursday 3rd July 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 69% chance of some rain and a gentle breeze of 9 mph from the east.
- °F maximum temperature
- °F minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from E
St Lucia weather for Friday 4th July 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 11 mph from the east.
- °F maximum temperature
- °F minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from E
St Lucia weather for Saturday 5th July 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 9 mph from the east.
- °F maximum temperature
- °F minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from E
St Lucia weather for Sunday 6th July 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 86°F, 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 59% chance of some rain and a gentle breeze of 9 mph from the east.
- °F maximum temperature
- °F minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from E
St Lucia weather for Monday 7th July 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 86°F, 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 75% chance of some rain and a gentle breeze of 10 mph from the east.
- °F maximum temperature
- °F minimum temperature
-
isolated thunderstorms
- hours of sunshine
- UV index (Extreme)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from E
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Metric (°C) | Imperial (°F)
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