St Lucia Weather Forecast

Check the St Lucia weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in St Lucia is expected to be 30°C. The weather forecast shown below is for Castries.

St Lucia: 5-day weather forecast

Click on a symbol below to see the daily forecast in detail.

Last updated at 04:00 on Wednesday 20th September 2017 GMT

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

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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 Wednesday 20th September 2017

Below is the St Lucia weather forecast for Wednesday 20th September 2017. Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 32 kph from the south-east.

  • 30
    °C maximum temperature
  • 28
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 66
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 32
    kph wind from SE

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St Lucia weather for Thursday 21st September 2017

Below is the St Lucia weather forecast for Thursday 21st September 2017. Expect overcast skies in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the south-east.

  • 30
    °C maximum temperature
  • 27
    °C minimum temperature
  • overcast skies
  • 0
    hours of sunshine
  • 0
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 30
    kph wind from SE

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St Lucia weather for Friday 22nd September 2017

Below is the St Lucia weather forecast for Friday 22nd September 2017. Expect isolated thunderstorms in St Lucia with a maximum temperature of 32°C, high levels of heat & humidity and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a moderate breeze of 25 kph from the south.

  • 32
    °C maximum temperature
  • 28
    °C minimum temperature
  • isolated thunderstorms
  • 5
    hours of sunshine
  • 35
    % chance of some rain
  • <2
    mm of rainfall expected
  • H
    high heat & humidity
  • 25
    kph wind from S

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St Lucia weather for Saturday 23rd September 2017

Below is the St Lucia weather forecast for Saturday 23rd September 2017. Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 25 kph from the south-east.

  • 30
    °C maximum temperature
  • 27
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 43
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 25
    kph wind from SE

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St Lucia weather for Sunday 24th September 2017

Below is the St Lucia weather forecast for Sunday 24th September 2017. Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a fresh breeze of 30 kph from the south-east.

  • 30
    °C maximum temperature
  • 27
    °C minimum temperature
  • isolated thunderstorms
  • 1
    hour of sunshine
  • 47
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 30
    kph wind from SE

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  • Save up to 11% on all inclusive holidays to St Lucia
  • Book online with First Choice to receive discount
  • FREE kids places & low deposits also available

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St Lucia weather by month

Check St Lucia weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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