When to go · Grand Case

Grand Case in September

Avoid month. Listed as a month to avoid: Jun–Nov (rainier, hotter).

Key facts

Verdict: Avoid
Temperature: 32°C (90°F)90°F (32°C) / 26°C (79°F)79°F (26°C); average high / low
Rain days: 9
Crowds: Low; Saint-Martin overall
Prices: Low; Saint-Martin overall

Plan around it

Verdict

AvoidBest and avoid months for Grand Case

Listed as a month to avoid: Jun–Nov (rainier, hotter).

September is rated avoid. These months rate higher:

Long-term averages

Grand CaseHighs around 32 °C (90 °F), lows around 26 °C (79 °F), rain on about 9 daysHighs around 90 °F (32 °C), lows around 79 °F (26 °C), rain on about 9 days
Whole island, Saint-Martin · Marigot, Grand Case, Orient Bay, Philipsburgstorm or typhoon risk
Dry, breezy season December–April; hot and humid summer; Irma (2017) showed the risk of the August–October peak.

Saint-Martin overall: Peak hurricane month; many restaurants close.

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

First month

Second month

September: Listed as a month to avoid: Jun–Nov (rainier, hotter).

January: Inside Grand Case's best window: Dec–May.

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