Average high temperture and rainfall for St. Maarten in May. © Scott S. Bateman

St. Maarten weather in May normally has a brief rainy season much like other Caribbean destinations.

But calling it a rainy season is a bit overboard. Rainfall is about double the amount of January through April but not as high as the fall months.

This warm island in the southeastern Caribbean is a popular cruise and overnight destination because of the cruise port at Philipsburg and famous beaches such as Orient Bay and Great Bay.

St. Maarten Temperatures in May

The average high temperature in St. Maarten during May is 87 degrees Fahrenheit or about 31 Celsius, according to the Meteorological Department (of) St. Maarten. It is only a few degrees below the high point of the year, which takes place during the summer.

The average low temperature is 77 degrees Fahrenheit or 25 Celsius. The average St. Maarten water temperature in May is 81 degrees Fahrenheit or 27 Celsius, which is warm enough for swimming throughout the day.

On some days, temperatures in May can rise into the low 90s Fahrenheit or low 30s Celsius.

Rainfall in May

The total rainfall for St. Maarten in May averages four inches, according to the Meteorological Department (of) St. Maarten. It increases only one inch from April and is slightly above the average for the year.

The island’s rainfall ranges from a low point of two inches in February and March to a high point of six inches in November. The monthly average over the course of the year is three inches.

It rains 10 days on average during May. The number of days with rain is below average for the year and below average for many other Caribbean islands.

Tourism in May

St. Maarten attracts 500,000 hotel visitors and 2 million cruise visitors, according to the Caribbean Tourism Organization.

May tourism is less than the most popular months to visit the island, which are December through April.

St. Maarten weather in May makes the month one of the better times to visit the island for smaller crowds, warmer temperatures and number of days with rain. It is a below average month for total rainfall.

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