Saint 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

🇱🇨 Saint Lucia, month by month

92/100 in March
  1. 90Jan
  2. 91Feb
  3. 92Mar
  4. 91Apr
  5. 90May
  6. 86Jun
  7. 84Jul
  8. 83Aug
  9. 82Sep
  10. 82Oct
  11. 83Nov
  12. 89Dec

Where in Saint Lucia in March

#PlaceTypeFeels-like highRainComfortAt its best
1CastriesIsland31°C27 mm · 11 days92 tier SYes
2SoufrièreBeach32°C26 mm · 11 days91 tier SYes

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.

What's on in Saint Lucia in March

  • Humpback whales pass · Soufrière · 1 Feb – 30 Apr (usually)

Other good months for Saint Lucia

February · 91/100April · 91/100January · 90/100Weakest: October · 82/100
← Saint Lucia in FebruarySaint Lucia in April →Best time to visit Saint Lucia, month by monthCompare: Castries vs Soufrière in March