Typical Weather in St Lucia, Caribbean in August
88° F Avg High
75° F Avg Low
10 Rainy Days
☀️ Temperature Summary
August is one of the warmer months of the year for St Lucia, with highs averaging around 88°F. Overnight lows will be around 75°F on average.
Be ready to seek shade during the day, as mid-day temperatures can be dangerous if you're caught without a way to cool off.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In August you can expect close to a 32% chance of rain for any given day. It rains more than usual in August, with total rainfall for the month typically near 6 inches.
Rainfall Throughout the Year
Planning a trip to St Lucia? Try our free trip weather planner