Which is the hottest month in Castries?

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

Which month has the most rain in Castries?

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

When is it sunniest in Castries?

The sunniest time of year in Castries 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 Castries?

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

Best time to visit Castries

Q: When is the best time to visit Castries?

The best times to visit Castries, St Lucia are in January, February, March, April, May, June, July, August, September, November and December Daily hours of sunshine = 8 hours or more.

The best times to visit Castries, St Lucia are in January, February, March, April, May, June, July, August, September, November and December based on our default weather conditions. Update your weather preferences to see which months best match.

Castries by month

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

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When is the best time to visit Castries?

The best times to visit Castries, St Lucia are in January, February, March, April, May, June, July, August, September, November and December based on the following average weather conditions.

Daily hours of sunshine = 8 hours or more [remove]

Change the criteria to reflect your weather preferences.

5
Jan
5
Feb
5
Mar
5
Apr
5
May
5
Jun
5
Jul
5
Aug
5
Sep
4.5
Oct
5
Nov
5
Dec

Change criteria

Hours of Sunshine (daily)

8
Jan
8
Feb
8
Mar
8
Apr
8
May
8
Jun
8
Jul
8
Aug
8
Sep
7
Oct
8
Nov
8
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

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)