Santo Domingo Weather in August
Santo Domingo in August averages 31°C (88°F) during the day and 25°C (77°F) at night. This is the wettest month of the year.
Rainfall in Santo Domingo in August
Expect the heaviest rain of the year this month, often arriving in intense bursts. A poncho is essential for keeping dry. Looking at the last 30 years, the data shows about 15 days with rain, averaging 151 mm (5.9 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Santo Domingo in August
Daytime highs in Santo Domingo in August reach 31°C (88°F), with nights around 25°C (77°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning. Although these are average temperatures, some days can be hotter. Wear cool, breathable clothing and protect yourself from the sun.
Sunshine in Santo Domingo in August
Expect sunny days throughout the month, with an estimated 235 hours of sunshine. This makes it a pleasant time to visit Santo Domingo.
Wind Speed in Santo Domingo in August
Average wind conditions reach 2 m/s (4 knots) in August. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.
Average water temperature in August
The water is 29°C (84°F) — very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.August in Santo Domingo can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santo Domingo's climate page.
Santo Domingo Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Water Temperature
29°C (84°F)
Chance of Rain
49%
Precipitation
151 mm (5.9 in)
Rainy days
15 days
Humidity
85%
Windspeed
2 m/s (4 knots)
Sunshine
235 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Santo Domingo typically stay consistent throughout August, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in August
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Santo Domingo in August
Browse day-by-day weather records for Santo Domingo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santo Domingo historical weather extremes in August
Based on 31 years of weather observations (1994-2025), these are the most extreme conditions recorded in Santo Domingo.
- On August 1, 2017, temperatures climbed to 38°C (100°F), marking the warmest August day on record.
- Santo Domingo experienced its chilliest August day on August 21, 1994, reaching only 24°C (75°F).
- The lowest overnight temperature recorded in August was 21°C (70°F) (August 4, 2011).
Best Places in the Dominican Republic in August
Find out more about the weather in the Dominican Republic and which places have the best travel conditions in this month. See all of the Dominican Republic in August →
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What to Wear in Santo Domingo in August
Warm but pleasant conditions in Santo Domingo in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Santo Domingo in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santo Domingo's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Santo Domingo climate overview or explore weather in the Dominican Republic.
