Santo Domingo weather in August

Dominican Republic · long-term averages 2001–2025 · full-year climate of Santo Domingo

Average high
32 °C89 °F
Average low
25 °C77 °F
Precipitation
68 mm2.7 in
Daylight
12.7 h
Humidity
77%
Cloud amount
51%

In August, Santo Domingo has an average high of 32 °C89 °F and an average low of 25 °C77 °F, with about 68 mm2.7 in of precipitation. August is the warmest month of the year and ranks 2nd for precipitation.

How August compares with other months

Compared with July, August is about the same temperature and wetter by 13 mm0.5 in. Compared with September, August is about the same temperature and wetter by 8 mm0.3 in. Daylight lasts about 12.7 hours around the middle of the month. Average relative humidity is 77% and the average cloud amount 51%.

Is August a good time to visit Santo Domingo?

August is not among the most comfortable months by our comfort score: it is hot (average high 32 °C89 °F), it is fairly wet (68 mm2.7 in) and it is humid (77%). The most comfortable months in Santo Domingo are December–March.

What to wear in August

For Santo Domingo in August, pack very light, breathable clothing, a sun hat and plenty of water.

August in nearby places

August averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Santo Domingo32892577682.7
San Cristóbal32892577682.7
San Pedro de Macorís32902578642.5
La Romana32892679592.3
San Francisco de Macorís30872577572.2
La Vega33922475552.2
Santiago de los Caballeros32902374552.2
Punta Cana29842882672.6
Puerto Plata30862780662.6

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 August?

In August 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 August?

On average about 68 mm (2.7 in) of precipitation falls in August; it ranks 2nd of the 12 months.

Is August the warmest month in Santo Domingo?

Yes. August is the warmest month in Santo Domingo. The coldest month is February, with an average low of 21 °C (70 °F).

How long is the day in Santo Domingo in August?

In the middle of August the day in Santo Domingo lasts about 12.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.

How humid is Santo Domingo in August?

The average relative humidity in August is about 77%. Combined with warm days, it can feel muggy.

How cloudy is Santo Domingo in August?

On average about 51% of the sky is covered by cloud in August. 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.