Caribbean weather in September
Averages for 13 places in the Caribbean in September, from 30 years of weather data.
Holiday weather in September
Good
Best time to visit: November – July
Places in the Caribbean in September
Sorted by holiday weather score. Each place links to its own page for September.
| Place | Score | Day | Night | Sea | Sun | Rain days |
|---|---|---|---|---|---|---|
| Aruba (Oranjestad) | 87 | 30° | 27° | 29° | 8 h | 11 |
| Curaçao (Willemstad) | 83 | 29° | 27° | 29° | 8 h | 13 |
| Puerto Plata | 80 | 31° | 26° | 29° | 8 h | 16 |
| Barbados (Bridgetown) | 76 | 29° | 26° | 29° | 8 h | 18 |
| Montego Bay | 75 | 31° | 26° | 30° | 7 h | 26 |
| Punta Cana | 75 | 29° | 26° | 29° | 8 h | 19 |
| Nassau, Bahamas | 75 | 29° | 26° | 29° | 8 h | 18 |
| Tulum | 73 | 30° | 26° | 30° | 7 h | 23 |
| Varadero | 73 | 30° | 26° | 30° | 7 h | 19 |
| Cancún | 73 | 29° | 26° | 29° | 7 h | 24 |
| Playa del Carmen | 72 | 30° | 26° | 30° | 7 h | 24 |
| Havana | 39 | 31° | 25° | 30° | 7 h | 19 |
| San Juan, Puerto Rico | 38 | 31° | 25° | 29° | 7 h | 21 |
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 74 | 71 | 69 |
| Day | 30° | 30° | 29° |
| Night | 26° | 26° | 25° |
| Sea | 29° | 29° | 29° |
| Sun | 8 h | 7 h | 7 h |
| Rain days | 18 | 19 | 19 |
Caribbean in September: quick answers
Is it warm in the Caribbean in September?
Yes, it is hot. Daytime highs average 30 °C (29–31 °C by place) and nights 26 °C.
Can you swim in the Caribbean in September?
Yes. The sea is 29–30 °C, 29 °C on average.
Where is it warmest in the Caribbean in September?
The warmest are Puerto Plata (31 °C), Montego Bay (31 °C) and Havana (31 °C).
Does it rain much in the Caribbean in September?
Yes, often: 19 rainy days on average. Plus 7 hours of sunshine a day.
Is September a good time to visit the Caribbean?
September scores 71 out of 100 (Good). The best time to visit is November – July.
Caribbean month by month
Caribbean: weather by monthWhere to go in SeptemberSea temperature in September
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)