Temperature
Warm by day, warm at night.
81°Ftypical Aug high
Mustique is most comfortable in the drier months around February to April. Typical daytime highs run about 78-82°F year-round. The climate is warm and humid. Rainy season runs roughly June to November.

Warm by day, warm at night.
One of the wettest months.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
Partly cloudy across the month.
Want a side-by-side climate view? Compare Mustique with Phu Quoc.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 19, 2026
Data & methodology