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St. Maarten 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.
St. Maarten Climate Chart
Month
J
F
M
A
M
J
J
A
S
O
N
D
Avg
Avg Max Temp
83
84
85
86
87
88
89
89
89
88
86
85
87
Avg Min Temp
74
74
74
75
77
79
79
79
79
78
77
75
77
Rain (inches)
3
2
2
3
4
2
3
4
5
4
6
4
3
Source: Meteorological Service of Netherland Antilles and Aruba
The average monthly high temperature is about 86 degrees Fahrenheit and the average monthly low is about 77 degrees, according to the Meteorological Service of Netherland Antilles and Aruba.
The monthly high temperatures climb to an average of 88 to 89 degrees in June through October. They drop to about 84 degrees from December through March.
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. Rainfall totals more than five inches in September, four inches in October and five inches in November.
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.