Santo Domingo Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Santo Domingo, Santo Domingo, Dominican Republic. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Santo Domingo experiences significant rainfall throughout the year, averaging 1178 mm (46 in) of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The seasons in Santo Domingo, bring significant changes in precipitation. The wettest month, August, receives high rainfall, with an average of 151 mm (5.9 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 43 mm (1.7 in) over 11 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.August, the wettest month, has a maximum daytime temperature of 31°C (88°F). The city receives 235 hours of sunshine in this period. During the driest month February you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Santo Domingo Temperature page.
Daily Historical Precipitation
48-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Santo Domingo's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Santo Domingo spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in the Dominican Republic: City Comparison
The map below shows the annual precipitation across the Dominican Republic. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
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almost none
Santo Domingo vs World: Rainfall Compared
Santo Domingo's average annual precipitation is 1178 mm (46 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Santo Domingo's weather, including sunshine hours, humidity levels, and temperature data, visit our Santo Domingo Climate page.
