Best time to visit St Lucia

Find the best time to visit St Lucia and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

St Lucia by month

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Top St Lucia destinations

Below are the temperatures expected today at popular countries, regions and places in St Lucia. Select a destination to compare today's forecast with average weather conditions.

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When is the best time to visit St Lucia?

The best time to visit St Lucia (Castries) is January and February based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 28°C maximum daytime temperature in January in St Lucia (Castries)28
    Jan
  • 28°C maximum daytime temperature in February in St Lucia (Castries)28
    Feb
  • 29°C maximum daytime temperature in March in St Lucia (Castries)29
    Mar
  • 29°C maximum daytime temperature in April in St Lucia (Castries)29
    Apr
  • 30°C maximum daytime temperature in May in St Lucia (Castries)30
    May
  • 30°C maximum daytime temperature in June in St Lucia (Castries)30
    Jun
  • 30°C maximum daytime temperature in July in St Lucia (Castries)30
    Jul
  • 30°C maximum daytime temperature in August in St Lucia (Castries)30
    Aug
  • 30°C maximum daytime temperature in September in St Lucia (Castries)30
    Sep
  • 30°C maximum daytime temperature in October in St Lucia (Castries)30
    Oct
  • 29°C maximum daytime temperature in November in St Lucia (Castries)29
    Nov
  • 29°C maximum daytime temperature in December in St Lucia (Castries)29
    Dec

Hours of Sunshine (daily)

  • Jan
  • Feb
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Which is the hottest month in St Lucia?

The hottest time of year in Castries, St Lucia is normally September. Expect maximum daytime temperatures to reach 30°C with very high heat and humidity.

Which month has the most rain in St Lucia?

In terms of rainfall, October is usually the wettest month in Castries, St Lucia with 269mm on average. There are normally 18 days in October with some rain.

When is it sunniest in St Lucia?

The sunniest time of year in Castries, St Lucia is normally January with bright sunshine on average for 72% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in St Lucia?

The sea is usually at its warmest in Castries, St Lucia in September when the water temperature reaches 29°C.

Best time to visit

The weather guide for St Lucia (Castries) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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

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St Lucia overview

St Lucia, one of the Windward Islands, is large and mountainous with volcanic peaks. It attracts more rain than is normal tor the Caribbean.

This falls mainly from May to January and is most intense during the July to November hurricane season when tropical storms can make life difficult even if they don't hit the island directly.

The small beach in Marigot Bay, St Lucia
The small beach in Marigot Bay, St Lucia © Tim Watson - Fotolia.com

The west coast (where Castries is located) is more sheltered from the prevailing winds.

Temperatures on St Lucia are high throughout the year but rarely unbearable since sea breezes help dissipate the humidity, although nights can be sticky.

Tropical storm risk: St Lucia hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
1%
2.4%
3.6%
1.8%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The St Lucia tropical storm risk chart above shows the hurricane season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

More about tropical storms

What to pack for St Lucia weather

Light cotton clothing is appropriate, and be prepared for rain at any time of the year.

St Lucia travel features

Do you want to learn more about St Lucia? Read our latest features covering travel tips and insider destination guides on where to go and what to do in St Lucia.

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