SeasonMapSaint Lucia in March
March is Saint Lucia's best month (rank 1 of 12): its 2 destinations average 92/100, led by Castries at 92 — 31°C and 11 rainy days — while Soufrière trails at 91 with 26 mm of rain.
#1 of 12 months for Saint Lucia · 2 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Saint Lucia in March
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Castries | Island | 31°C | 27 mm · 11 days | 92 tier S | Yes |
| 2 | Soufrière | Beach | 32°C | 26 mm · 11 days | 91 tier S | Yes |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means March is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.