When to go · Castries

Castries in September

Avoid month. Peak hurricane risk; fewest visitors.

Key facts

Verdict: Avoid
Temperature: 31°C (88°F)88°F (31°C) / 24°C (75°F)75°F (24°C); average high / low
Rain days: 19
Crowds: Low; Saint Lucia overall
Prices: Low; Saint Lucia overall

Plan around it

Verdict

AvoidVoykit month rating for Castries

Peak hurricane risk; fewest visitors.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

September is rated avoid. These months rate higher:

Long-term averages

CastriesHighs around 31 °C (88 °F), lows around 24 °C (75 °F), rain on about 19 daysHighs around 88 °F (31 °C), lows around 75 °F (24 °C), rain on about 19 days
North (Rodney Bay, Castries), Saint Lucia · Gros Islet, Rodney Bay, Castries, Marigot Baystorm or typhoon risk
Drier, flatter north; 26–31 °C (79–88 °F) with trade winds.Drier, flatter north; 79–88 °F (26–31 °C) with trade winds.

Wet / hurricane season season

Short daily showers, fewer visitors, lower prices, and real storm risk Aug–Oct — buy insurance with storm cover.

Saint Lucia overall: Peak storm risk; some hotels close.

Weather, crowds and prices for any two months in Castries, side by side.

First month

Second month

September: Peak hurricane risk; fewest visitors.

January: Dry season, warm and breezy; busiest and dearest.

Castries: figures are long-term averages from this guide, not a forecast.