Tomorrow in Castries looks
patchy rain nearby, with a high of 84°
and an overnight low of 78°.
There is a 71% chance of rain - plan accordingly.
Winds top out near 13 mph,
and the UV index reaches 9 (very high).
Even January, the coolest month, has average highs near 81°F (27°C). September is hottest, so the main seasonal change is intensity rather than a move from warm to cold.
Plan around moisture and heat
Rain and sunshineAbout 920 mm (36.2 inches) falls across 216 wet days, with 11.2 hours of sunshine on an average day.
Typical day and nightCastries averages 83°F (29°C) by day and 75°F (24°C) at night across the year.
Seasonal changeSeptember highs reach 86°F (30°C), while January lows fall to 73°F (23°C).
July, at 4.6 inches (116 mm) over about 24 days. April is the driest month, at 1.5 inches (38 mm).
When is Castries at its hottest?
September, averaging 86°F (30°C) by day and 77°F (25°C) overnight. The hottest single day in our 2015-2024 record for this location reached 91°F (33°C).
Is there snow in Castries?
Effectively no. The 2015-2024 record for Castries shows no regular measurable snowfall.
Which month is coolest in Castries?
January, with highs of 81°F (27°C) and lows near 73°F (23°C). The coldest day in the 2015-2024 record fell to 67°F (19°C).
When should I visit Castries?
Aim for January to April and July if you get the choice: humidity and rainfall are at their lowest, which is what actually varies here, and highs average 83°F (28°C) against roughly 17 wet days a month. For the same question asked the other way round, see where else is warm in January.
How many rainy days does Castries get in a year?
About 216 days bring measurable precipitation, totalling 36.2 inches (920 mm). That works out at roughly 4.3 mm on an average wet day.