Climate Insights for Santo Domingo

The climate in Santo Domingo is hot. The average annual temperature is 26°C and approximately 987mm of precipitation falls per year. September is the wettest month, receiving around 180mm 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, March, February, when temperatures can drop to 20°C.

Santo Domingo sees moderate temperature variation throughout the year, ranging from 20°C to 32°C. The warmest month is August, when average highs reach 32°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 20°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.

Santo Domingo is a moderately rainy area, receiving approximately 987mm of precipitation annually, which averages out to around 82mm per month. The wettest month is September, averaging 180mm of rainfall. May and October also tend to see above-average precipitation. The driest month is March, with just 18mm. That's 162mm 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.

Santo Domingo is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently summer in Santo Domingo, which began on June 21, 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 32°C, while the coldest stretch bottoms out in January near 20°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

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 35mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 32°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

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.