Climate Overview
The climate in Santo Domingo is hot. The average annual temperature is 25°C and approximately 892mm of precipitation falls per year. September is the wettest month, receiving around 155mm of rainfall. Santo Domingo is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, March, when temperatures can drop to 18°C.
Temperature
Santo Domingo sees moderate temperature variation throughout the year, ranging from 18°C to 33°C. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 18°C and an average of 22°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Santo Domingo is a moderately rainy area, receiving approximately 892mm of precipitation annually, which averages out to around 74mm per month. The wettest month is September, averaging 155mm of rainfall. June and May also tend to see above-average precipitation. The driest month is February, with just 17mm. That's 138mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Santo Domingo is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 11km/h in spring, 10km/h in summer, 10km/h in autumn.
Seasons
89 days until Winter
It is currently autumn in Santo Domingo, which began on September 23, 2026. Santo Domingo is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 33°C, while the coldest stretch bottoms out in January near 18°C. Winter is next, beginning on December 21, 2026 (89 days from now).
Spring
Temperatures range from 19 to 32°C. Precipitation is moderate at around 180mm for the season, averaging 60mm per month. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 24 to 33°C. Rainfall is heavy, totalling around 342mm across the season with a monthly average of 114mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 32°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 29°C. Rainfall is relatively light, with around 63mm over the season and a monthly average of 21mm. Winds are generally light, averaging 12km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Santo Domingo is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 26mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Santo Domingo based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
