Average high temperature and rainfall for St. Maarten in January. © Scott S. Bateman

Visitors will find that St. Maarten weather in January is mildly warm and dry enough that the risk of rain is low.

St. Maarten is a beautiful Caribbean island that is shared by two countries, France and the Netherlands.

It is a popular destination for travelers who take southern and eastern Caribbean cruises. It’s also popular with hotel and resort visitors. 

St. Maarten Temperatures in January

From December to January there is little change between the maximum and minimum temperatures of the island.

The average daytime temperature for St. Maarten in January is 83 degrees Fahrenheit or about 28 Celsius, according to the Meteorological Department of St. Maarten. The average low temperature is 74 degrees Fahrenheit or 23 Celsius.

Because of its close location to the equator, it stays warmer year-round than some other Caribbean destinations. The hottest months are July to September and the coldest are December to February. Average high temperatures in the summer approach 90 degrees Fahrenheit or 31 Celsius.

The average seawater temperature in January is about 79 degrees Fahrenheit or 26 Celsius, so swimming usually feels comfortable.

January Rainfall

The island has 3.4 inches of monthly rainfall, on average throughout the year. January in St. Maarten has an average of three inches of rain for the month, according to the Meteorological Department of St. Maarten. It continues at about that level until fall, when the average jumps during the annual Caribbean hurricane season.

Rainy days are sporadic in January. Historically, there are 11 days with rain on average for the month. Wind is also persistent in January at 87 percent of the time.

Whether to Go

St. Maarten in January is one of the best months to visit the island, especially for its warm weather. The most popular months of travel are March and April because of warmer temperatures, low chance of rain and spring break from schools.

With the daytime temperatures reaching the low 80s Fahrenheit and nighttime temperatures in the mid 70s, the odds of good weather are high for anyone visiting this island in January.

But it’s worth pointing out that St. Maarten is not the warmest Caribbean island in January. Grand Cayman, Aruba and Curacao are warmer.

• St. Maarten weather in: January - February - March - April - May - June - July - August - September - October - November - December