- Save up to £300 on package holidays in 2025/2026
- Book in TUI sale. Discount varies by spend. T&Cs apply
- Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
St Lucia weather live forecast
Tomorrow's maximum temperature in St Lucia is expected to be 28°C.
-
Tuesday
14th Jan
-
Wednesday
15th Jan
-
Thursday
16th Jan -
Friday
17th Jan
-
Saturday
18th Jan
5-day weather forecast updated at 04:03 on Tuesday 14th January 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
******ALE
******ALE
Expires at 10:00 on Friday 31st Jan 2025 · View all TUI offers
TUI deal 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 Tuesday 14th January 2025
Expect mostly cloudy with rain in St Lucia with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 13 kph from the north-east.
- °C maximum temperature
- °C minimum temperature
-
mostly cloudy with rain
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- low heat & humidity
- kph wind from NE
St Lucia weather for Wednesday 15th January 2025
Expect sunshine and showers in St Lucia with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 13 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
sunshine and showers
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Thursday 16th January 2025
Expect sunshine and showers in St Lucia with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 14 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
sunshine and showers
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
St Lucia weather for Friday 17th January 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 17 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 Saturday 18th January 2025
Expect isolated thunderstorms in St Lucia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a moderate breeze of 22 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 package holidays in 2025/2026
- Book in TUI sale. Discount varies by spend. T&Cs apply
- Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
Show discount code
******ALE
******ALE
Expires at 10:00 on Friday 31st Jan 2025 · View all TUI offers
TUI deal 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