Santo Domingo weather in September
In September, Santo Domingo has an average high of 32 °C89 °F and an average low of 25 °C77 °F, with about 60 mm2.4 in of precipitation. It is the 2nd warmest month of the year and ranks 5th for precipitation.
How September compares with other months
Compared with August, September is about the same temperature and drier by 8 mm0.3 in. Compared with October, September is 0.5 °C0.9 °F warmer on average. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 77% and the average cloud amount 54%.
Is September a good time to visit Santo Domingo?
September is not among the most comfortable months by our comfort score: it is hot (average high 32 °C89 °F), it is fairly wet (60 mm2.4 in) and it is humid (77%). The most comfortable months in Santo Domingo are December–March.
What to wear in September
For Santo Domingo in September, pack very light, breathable clothing, a sun hat and plenty of water.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Santo Domingo | 3289 | 2577 | 602.4 |
| San Cristóbal | 3189 | 2577 | 602.4 |
| San Pedro de Macorís | 3289 | 2578 | 672.6 |
| La Romana | 3289 | 2678 | 652.6 |
| San Francisco de Macorís | 3187 | 2576 | 612.4 |
| La Vega | 3392 | 2475 | 532.1 |
| Santiago de los Caballeros | 3290 | 2373 | 582.3 |
| Punta Cana | 2984 | 2882 | 742.9 |
| Puerto Plata | 3086 | 2780 | 763.0 |
Other months in Santo Domingo
- January29 °C85 °F / 21 °C70 °F
- February30 °C86 °F / 21 °C70 °F
- March30 °C87 °F / 22 °C71 °F
- April31 °C88 °F / 23 °C73 °F
- May31 °C88 °F / 24 °C75 °F
- June31 °C88 °F / 25 °C77 °F
- July32 °C89 °F / 25 °C77 °F
- August32 °C89 °F / 25 °C77 °F
- September32 °C89 °F / 25 °C77 °F
- October31 °C88 °F / 25 °C76 °F
- November30 °C87 °F / 23 °C74 °F
- December30 °C85 °F / 22 °C72 °F
Frequently asked questions
How warm is Santo Domingo in September?
In September the average high in Santo Domingo is 32 °C (89 °F) and the average low is 25 °C (77 °F).
Does it rain a lot in Santo Domingo in September?
On average about 60 mm (2.4 in) of precipitation falls in September; it ranks 5th of the 12 months.
Is September the warmest month in Santo Domingo?
No. The warmest month in Santo Domingo is August, with an average high of 32 °C (89 °F). The coldest month is February, with an average low of 21 °C (70 °F).
How long is the day in Santo Domingo in September?
In the middle of September the day in Santo Domingo lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Santo Domingo in September?
The average relative humidity in September is about 77%. Combined with warm days, it can feel muggy.
How cloudy is Santo Domingo in September?
On average about 54% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 126 m, while Santo Domingo lies at about 24 m. Temperatures on this page were therefore adjusted by +0.7 °C1.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.