Simpson Bay Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Simpson Bay, Sint Maarten. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's explore the details to provide you with a complete overview.
Generally, Simpson Bay experiences moderate precipitation patterns, averaging 917 mm (36 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, October receives substantial rainfall, averaging 139 mm (5.5 in) of precipitation, recorded across 20 rainy days.
In contrast, the driest month, March brings less rainfall, with 32 mm (1.3 in) over 13 rainy days.
October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 244 hours of sunshine in this period. During the driest month March you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Simpson Bay Temperature page.
Explore Simpson Bay's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Simpson Bay spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Sint Maarten: City Comparison
The map below shows the annual precipitation across Sint Maarten. You can also select the different months in case you are interested in a specific month.
heavy rainfall
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Simpson Bay vs World: Rainfall Compared
Simpson Bay's average annual precipitation is 917 mm (36 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
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.
- "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 Simpson Bay's weather, including sunshine hours, humidity levels, and temperature data, visit our Simpson Bay Climate page.
