St Lucia weather forecast

• Tuesday
  27th Sep
  
  28
  26
  4
• Wednesday
  28th Sep
  
  28
  26
  4
• Thursday
  29th Sep
  
  29
  26
  4
• Friday
  30th Sep
  
  29
  26
  6
• Saturday
  1st Oct
  
  30
  27
  7

Last updated at 04:01 on Tuesday 27th September 2022 GMT

Below are temperatures expected tomorrow at popular destinations in St Lucia. Select a destination to see the 5-day weather forecast.

• 28
  Castries
• 28
  Gros Islet
• 28
  Rodney Bay
• 28
  Soufriere

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Recommended for St Lucia

• TUI
• British Airways
• Sandals
• Marella Cruises

The 5-day weather forecast for St Lucia (Castries) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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 27th September 2022

Below is the St Lucia weather forecast for Tuesday 27th September 2022. Expect isolated thunderstorms in St Lucia with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 98% chance of some rain and a gentle breeze of 19 kph from the east.

• 28
  °C maximum temperature
• 26
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 9
  UV index (Very High)
• 98
  % chance of some rain
• <30
  mm of rainfall expected
• L
  low heat & humidity
• 19
  kph wind from E

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St Lucia weather for Wednesday 28th September 2022

Below is the St Lucia weather forecast for Wednesday 28th September 2022. Expect isolated thunderstorms in St Lucia with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 17 kph from the east.

• 28
  °C maximum temperature
• 26
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 8
  UV index (Very High)
• 85
  % chance of some rain
• <30
  mm of rainfall expected
• L
  low heat & humidity
• 17
  kph wind from E

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St Lucia weather for Thursday 29th September 2022

Below is the St Lucia weather forecast for Thursday 29th September 2022. Expect isolated thunderstorms in St Lucia with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a light breeze of 11 kph from the south.

• 29
  °C maximum temperature
• 26
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 7
  UV index (High)
• 97
  % chance of some rain
• <20
  mm of rainfall expected
• L
  low heat & humidity
• 11
  kph wind from S

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St Lucia weather for Friday 30th September 2022

Below is the St Lucia weather forecast for Friday 30th September 2022. Expect broken clouds in St Lucia with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-east.

• 29
  °C maximum temperature
• 26
  °C minimum temperature
• 
  broken clouds
• 6
  hours of sunshine
• 7
  UV index (High)
• 0
  mm of rainfall expected
• L
  low heat & humidity
• 17
  kph wind from SE

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St Lucia weather for Saturday 1st October 2022

Below is the St Lucia weather forecast for Saturday 1st October 2022. Expect isolated thunderstorms in St Lucia with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 14 kph from the south-east.

• 30
  °C maximum temperature
• 27
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 11
  UV index (Extreme)
• 54
  % chance of some rain
• <2
  mm of rainfall expected
• M
  moderate heat & humidity
• 14
  kph wind from SE

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Sandals sale: up to £150 off Caribbean holidays

Discount Code

• Save EXTRA £150 on all inclusive Caribbean holidays
• £150 off 10 nights or more & £100 off 7-9 nights
• Travel before 31st December 2025 (inclusive)

Show discount code ******100

Redeem Sandals discount code >>

Expires at 23:59 on Monday 3rd Oct 2022 · View all Sandals offers

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

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