Caribbean weather in August
Averages for 13 places in the Caribbean in August, from 30 years of weather data.
Holiday weather in August
Good
Best time to visit: November – July
Places in the Caribbean in August
Sorted by holiday weather score. Each place links to its own page for August.
| Place | Score | Day | Night | Sea | Sun | Rain days |
|---|---|---|---|---|---|---|
| Aruba (Oranjestad) | 95 | 29° | 27° | 28° | 9 h | 7 |
| Puerto Plata | 88 | 30° | 26° | 29° | 9 h | 12 |
| Curaçao (Willemstad) | 87 | 29° | 27° | 29° | 9 h | 12 |
| Nassau, Bahamas | 80 | 30° | 27° | 30° | 9 h | 17 |
| Varadero | 79 | 31° | 26° | 30° | 8 h | 17 |
| Barbados (Bridgetown) | 78 | 28° | 26° | 29° | 8 h | 21 |
| Cancún | 77 | 30° | 27° | 29° | 8 h | 21 |
| Punta Cana | 77 | 29° | 26° | 29° | 8 h | 20 |
| Playa del Carmen | 76 | 30° | 26° | 29° | 8 h | 21 |
| Tulum | 76 | 30° | 26° | 30° | 8 h | 19 |
| Montego Bay | 75 | 31° | 26° | 30° | 8 h | 26 |
| San Juan, Puerto Rico | 39 | 32° | 25° | 29° | 8 h | 18 |
| Havana | 37 | 32° | 26° | 30° | 8 h | 17 |
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 77 | 74 | 71 |
| Day | 30° | 30° | 30° |
| Night | 26° | 26° | 26° |
| Sea | 29° | 29° | 29° |
| Sun | 9 h | 8 h | 7 h |
| Rain days | 16 | 18 | 19 |
Caribbean in August: quick answers
Is it warm in the Caribbean in August?
Yes, it is hot. Daytime highs average 30 °C (28–32 °C by place) and nights 26 °C.
Can you swim in the Caribbean in August?
Yes. The sea is 28–30 °C, 29 °C on average.
Where is it warmest in the Caribbean in August?
The warmest are San Juan, Puerto Rico (32 °C), Havana (32 °C) and Varadero (31 °C).
Does it rain much in the Caribbean in August?
Yes, often: 18 rainy days on average. Plus 8 hours of sunshine a day.
Is August a good time to visit the Caribbean?
August scores 74 out of 100 (Good). The best time to visit is November – July.
Caribbean month by month
Caribbean: weather by monthWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)