Santo Domingo weather by month
Santo Domingo runs from about 24°C in December to 27°C in August, with November the wettest month at 234 mm.
warmest month
August
27°C
coolest month
December
24°C
wettest month
November
234 mm
worst air month
June
19 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 25°C | 41 mm | 326 h | 9 |
| February | 24°C | 23 mm | 312 h | 10 |
| March | 25°C | 53 mm | 351 h | 9 |
| April | 26°C | 133 mm | 332 h | 10 |
| May | 26°C | 193 mm | 333 h | 13 |
| June | 27°C | 189 mm | 305 h | 19 |
| July | 27°C | 186 mm | 326 h | 15 |
| August | 27°C | 147 mm | 338 h | 12 |
| September | 27°C | 146 mm | 315 h | 11 |
| October | 27°C | 126 mm | 320 h | 11 |
| November | 25°C | 234 mm | 260 h | 9 |
| December | 24°C | 190 mm | 319 h | 9 |
About 3,837 hours of sun a year. Roughly 166 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.