Saint Lucia Weather

Weather in Saint Lucia at a glance

Our Saint Lucia coverage centers on Castries, which has a tropical wet-and-dry climate. Expect average highs around 86°F (30°C) in September and 81°F (27°C) in January, with about 216 days of measurable precipitation a year.

Quick facts

Covered city: Castries - annual average 79°
Best time to visit: January to April
Climate type: tropical wet-and-dry

The bigger picture

Castries averages 11.2 hours of sunshine per day and roughly 920 mm (36.2 inches) of precipitation annually. The most comfortable window is generally January to April. See the full month-by-month breakdown on the Castries climate page.

Castries Partly cloudy 88°

Saint Lucia cities compared

Annual climate figures per covered city, from 2015–2024 weather data.
City	Annual avg	Hottest month	Coldest month	Rainy days/yr	Sun h/day	Snowy days/yr
Castries	79°	Sep · 86°	Jan · 73°	216	11.2	0

Saint Lucia weather by month

Monthly averages, 2015–2024.
Month	Avg high	Avg low	Rainy days	Sunshine
January	81°	73°	18	10.8 h/day
February	81°	73°	13	11.1 h/day
March	82°	73°	15	11.6 h/day
April	84°	74°	12	11.8 h/day
May	85°	76°	13	11.7 h/day
June	85°	76°	19	11.3 h/day
July	84°	76°	24	11.5 h/day
August	85°	76°	23	11.3 h/day
September	86°	77°	22	11.2 h/day
October	85°	76°	21	10.8 h/day
November	83°	75°	21	10.5 h/day
December	82°	74°	17	10.7 h/day

Saint Lucia weather FAQs

When is the best time to visit Saint Lucia?

Averaged across the covered cities, January to April offers the most comfortable combination of temperatures, drier days and daylight. Coastal, mountain and desert areas can differ - check each city's climate page for specifics.

Does it snow in Saint Lucia?

Snow is essentially absent in the Saint Lucia cities we cover - the 2015–2024 record shows no regular measurable snowfall.

What is the climate of Saint Lucia like?

The covered cities fall under tropical wet-and-dry climate. That means year-round warmth split between a rainy season and a dry season.

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