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St. Maarten

St. Maarten Climate and Average Monthly Weather


St. Maarten average monthly high temperatures
Data source: Meteorological Service of Netherland Antilles and Aruba. Graphic ©
St. Maarten’s climate is the same whether you go to the Dutch side or the French side -- it's warm year round, but watch out for rain in the fall.

The island, smallest in the world shared by two nations, is a mix of Dutch and French cultures that make it a popular destination for eastern and southern Caribbean cruises.

The weather is warm and sunny eight months of the year, but rain is a factor during the other four months.

St. Maarten climate is warm year-round because it is located in the southern Caribbean and closer to the equator than most islands.

Its southern location and the resulting warmer temperatures than some islands make it a popular destination on eastern and southern Caribbean cruises.

Average Monthly Temperatures

Historically, July through September are the warmest months of the year with an average high of 89 degrees Fahrenheit or about 32 degrees Celsius, according to the Meteorological Service of Netherland Antilles and Aruba.

June and October are not far behind with average highs of 88 degrees Fahrenheit or about 31 degrees Celsius.

The average monthly high temperature throughout the year is about 86 degrees Fahrenheit and the average monthly low is about 77 degrees.

Monthly high temperatures drop to about 84 degrees F or 29 degrees C from December through March.

Although the seawater is comfortable enough for swimming year round, it will reach a low point in comfort level from January through March when temperatures reach their lowest point.

Average Monthly Rainfall

St. Maarten average monthly rainfall
Data source: Meteorological Service of Netherland Antilles and Aruba. Graphic ©
The island receives an average of 3.4 inches of rain per month, but with definite highs and lows during the year.

St. Maarten has about two inches of rain a month from January through April. It jumps to nearly four inches in May and declines in June and July.

May is often a brief rainy season for many Caribbean destinations.

A much longer and heavier period of rain takes place during the annual Caribbean hurricane season, which runs from June through November.
St. Maarten receives less rainy than many other locations during that time of year.

June and July maintain an average of two to three inches and August increases to four inches.

Rainfall totals more than five inches in September, four inches in October and six inches in November.

Most and Least Popular Months

St. Maarten Climate Chart
Avg Max Temp83848586878889898988868587
Avg Min Temp74747475777979797978777577
Rain (inches)3223423454643
Source: Meteorological Service of Netherland Antilles and Aruba
Low rainfall and warm temperatures in the spring make March and April the most popular months to visit, according to the Caribbean Tourism Organization.

The most unpopular months are September and October.

Rainfall makes September, October and November the riskiest months to visit St. Maarten. March, April, June and July have the lowest risk of heavy rainfall.

 > Category: Climate

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