Nassau weather by month
Nassau runs from about 22°C in February to 29°C in July, with August the wettest month at 147 mm.
warmest month
July
29°C
coolest month
February
22°C
wettest month
August
147 mm
worst air month
July
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 23°C | 26 mm | 298 h | 6 |
| February | 22°C | 47 mm | 277 h | 6 |
| March | 24°C | 79 mm | 331 h | 6 |
| April | 24°C | 21 mm | 359 h | 7 |
| May | 27°C | 63 mm | 377 h | 7 |
| June | 28°C | 90 mm | 292 h | 9 |
| July | 29°C | 70 mm | 365 h | 10 |
| August | 29°C | 147 mm | 332 h | 6 |
| September | 29°C | 63 mm | 332 h | 4 |
| October | 27°C | 115 mm | 295 h | 5 |
| November | 25°C | 31 mm | 290 h | 5 |
| December | 23°C | 30 mm | 277 h | 6 |
About 3,825 hours of sun a year. Roughly 79 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.