SeasonMapSaint Lucia in August
August is one of Saint Lucia's weaker months (rank 11 of 12): its 2 destinations average 84/100, led by Castries at 85 — 34°C and 22 rainy days — while Soufrière trails at 83 with 113 mm of rain.
#11 of 12 months for Saint Lucia · 2 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Saint Lucia in August
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Castries | Island | 34°C | 105 mm · 22 days | 85 tier A | — |
| 2 | Soufrière | Beach | 34°C | 113 mm · 22 days | 83 tier A | — |
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 August 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 August
- La Rose flower festival · Soufrière · 28 Aug – 1 Sep