St Lucia weather live forecast

Tomorrow's maximum temperature in St Lucia is expected to be 31°C.

5-day weather forecast updated at 04:00 on Sunday 15th September 2024 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

First Choice: Top deals on 2024/2025 holidays

  • Save on summer & winter sun holidays in 2024/2025
  • Book holidays to popular destinations around the world
  • Pay low deposits & spread cost with direct debit
Go to First Choice deal >>

View all First Choice offers

First ChoiceHoliday 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 tomorrow at popular countries and places in St Lucia. Select a destination to see the 5-day weather forecast.

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 Sunday 15th September 2024

Expect broken clouds in St Lucia with a maximum temperature of 31°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 16 kph from the east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 16 kph from the East16
    kph wind from E

Back to top

St Lucia weather for Monday 16th September 2024

Expect isolated thunderstorms in St Lucia with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 5 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 east.

  • 32°C maximum temperature32
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 68% chance of some rain68
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 13 kph from the East13
    kph wind from E

Back to top

St Lucia weather for Tuesday 17th September 2024

Expect isolated thunderstorms in St Lucia with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 70% chance of some rain and a light breeze of 11 kph from the east.

  • 32°C maximum temperature32
    °C maximum temperature
  • 28°C minimum temperature28
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 70% chance of some rain70
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 11 kph from the East11
    kph wind from E

Back to top

St Lucia weather for Wednesday 18th September 2024

Expect isolated thunderstorms in St Lucia with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 57% chance of some rain and little or no wind of 2 kph from the east.

  • 32°C maximum temperature32
    °C maximum temperature
  • 28°C minimum temperature28
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 57% chance of some rain57
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 2 kph from the East2
    kph wind from E

Back to top

St Lucia weather for Thursday 19th September 2024

Expect isolated thunderstorms in St Lucia with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and little or no wind of 6 kph from the south.

  • 32°C maximum temperature32
    °C maximum temperature
  • 28°C minimum temperature28
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 54% chance of some rain54
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 6 kph from the South6
    kph wind from S

Back to top

First Choice: Top deals on 2024/2025 holidays

  • Save on summer & winter sun holidays in 2024/2025
  • Book holidays to popular destinations around the world
  • Pay low deposits & spread cost with direct debit
Go to First Choice deal >>

View all First Choice offers

First ChoiceHoliday deal finder

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about St Lucia

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^