What March feels like in Castries
As a tropical city, Castries is warm all year; March is not part of a clear dry or wet season. The midday hours are hot; shade and water matter on long walks. The gap between afternoon and night is small, so nights stay warm and the temperature hardly changes after dark. Some humidity hangs in the air, noticeable when the sun is strong.
Rain in Castries in March
March is persistently wet here: some rain falls on about one day in 2. Most wet days bring only light rain — about 3 mm (0.1 in) on a typical rainy day — the kind of drizzle or short shower that rarely stops plans for long. That is lighter than the city's yearly norm of about 4.3 mm per rainy day. It is among the three driest months of the year.
How March compares to the rest of the year
In Castries's temperature order, March sits as the 4th coolest month. Afternoons run 0.6°C (1.1°F) warmer than in February, with 2 mm more rain. Temperatures barely move from one month to the next here. April averages a high of 28.7°C (83.7°F).
Who March suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
Tips for visiting Castries in March
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sunglasses
Bright days make sunglasses worth packing.
Quick questions
How warm is Castries in March?
It feels hot: typical highs are 28°C (82.4°F), with lows near 23.2°C (73.8°F).
Does it rain a lot in Castries in March?
Yes, fairly — rain falls about one day in 2 and totals about 39 mm, so an umbrella is worth carrying.
What should I wear in Castries in March?
Pack rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is March or April better for visiting Castries?
April scores better on our climate ranking (#2 of 12 vs #3), rated Good against Good.

