Weather & climate · Castries

Best Time to Visit Saint Lucia

January to March

The best time to visit Saint Lucia is January to March, when daytime highs in Castries are around 27°C. April to May and December are also a good time to go. September is the warmest month (29°C by day), February the coldest (26°C at night), and October the wettest with about 189 mm of rain.

29°C

Warmest: September

26°C

Coldest nights: February

1443 mm

Rain per year

189 mm

Wettest: October

Saint Lucia weather by month

Jan27°C26°C68 mm
Feb27°C26°C44 mm
Mar27°C26°C48 mm
Apr28°C26°C97 mm
May28°C27°C102 mm
Jun29°C27°C136 mm
Jul29°C27°C154 mm
Aug29°C28°C179 mm
Sep29°C28°C182 mm
Oct29°C28°C189 mm
Nov28°C27°C159 mm
Dec28°C27°C85 mm

Best time Good Less ideal

Average high Average low Rain (mm per month)

Month	High	Low	Rain	Humidity	Cloud cover	Verdict
January	27°C	26°C	68 mm	76%	39%	Best time
February	27°C	26°C	44 mm	74%	38%	Best time
March	27°C	26°C	48 mm	75%	44%	Best time
April	28°C	26°C	97 mm	76%	53%	Good
May	28°C	27°C	102 mm	77%	56%	Good
June	29°C	27°C	136 mm	78%	62%	Fair
July	29°C	27°C	154 mm	79%	52%	Rainy
August	29°C	28°C	179 mm	79%	46%	Rainy
September	29°C	28°C	182 mm	78%	52%	Rainy
October	29°C	28°C	189 mm	79%	57%	Rainy
November	28°C	27°C	159 mm	79%	49%	Rainy
December	28°C	27°C	85 mm	77%	41%	Good

Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Castries (14, -61). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Saint Lucia have their own climate.

Frequently asked questions

When is the best time to visit Saint Lucia?

January to March. The best time to visit Saint Lucia is January to March, when daytime highs in Castries are around 27°C. April to May and December are also a good time to go. September is the warmest month (29°C by day), February the coldest (26°C at night), and October the wettest with about 189 mm of rain.

What is the hottest month in Saint Lucia?

September, with average highs of 29°C in Castries.

What is the coldest month in Saint Lucia?

February, when nights drop to about 26°C and days reach 27°C.

What is the rainiest month in Saint Lucia?

October with about 189 mm; February is the driest (44 mm).

When should I avoid visiting Saint Lucia?

October is the least comfortable month on average: 29°C by day and 189 mm of rain.

Saint Lucia country profile Visa requirements for Saint Lucia Best time to visit every country

Best time to visit other countries in Americas

Best time Good · bars run January → December