Saint Barthélemy Weather in August
August in Saint Barthélemy brings high temperatures, with daytime highs of 30°C (86°F) and nights around 27°C (81°F). Quite a bit of rainfall is expected, around 97 mm (3.8 in), so pack an umbrella.
Rainfall in Saint Barthélemy in August
On average, there are about 19 days with rain during this month, averaging 97 mm (3.8 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Saint Barthélemy in August
In August, expect high temperatures in Saint Barthélemy, with highs of 30°C (86°F) and lows of 27°C (81°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights remain warm at around 27°C (81°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.
Sunshine in Saint Barthélemy in August
There are approximately 267 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Saint Barthélemy in August
August sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, May, June, July and December typically offer the best circumstances for Saint Barthélemy.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Barthélemy, check out our Saint Barthélemy's climate page.
Saint Barthélemy Temperature in August
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
63%
Precipitation
97 mm (3.8 in)
Rainy days
19 days
Humidity
77%
Windspeed
6 m/s (12 knots)
Sunshine
267 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Saint Barthélemy typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Saint Barthélemy in August
Browse day-by-day weather records for Saint Barthélemy spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Saint Barthélemy historical weather extremes in August
Our historical data for Saint Barthélemy spans 1976 to 2025, revealing these weather extremes.
- Saint Barthélemy recorded its highest August temperature of 35°C (95°F) on August 13, 1991.
- The coldest August day was on August 30, 1979, with a maximum of 27°C (81°F).
- Saint Barthélemy registered its coldest August night on August 2, 2011, with temperatures dropping to 20°C (68°F).
Best Places in Saint Barthélemy in August
Find out more about the weather in Saint Barthélemy and which places have the best travel conditions in this month. See all of Saint Barthélemy in August →
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What to Wear in Saint Barthélemy in August
Warm but pleasant conditions in Saint Barthélemy in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Saint Barthélemy in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Barthélemy, check out our Saint Barthélemy's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Saint Barthélemy climate overview or explore weather in Saint Barthélemy.
