January Weather in Saint Martin, United States

Last updated: June 24, 2025

In January, the average temperature in Saint Martin, United States hovers around 12°C (53°F). During this month, temperatures can dip as low as -7°C (20°F) or rise to a pleasant 26°C (79°F). Expect about 92 mm (3.6 in) of precipitation spread across 8 days, and with an average humidity of 82%, the air will feel notably moist.

January Temperature in Saint Martin

In January in Saint Martin, the average temperature is 12°C (53°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -7°C (20°F). It's a great time for travelers to experience the region's diverse climate, so be sure to pack accordingly!

January Weather in Saint Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Martin, January typically has an average temperature of 12°C (53°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).

Data source: Temperature data for Saint Martin generated using information from the Copernicus Climate Change Service.

January Precipitation in Saint Martin

In Saint Martin in January, the precipitation amount is 92 mm (3.6 in), occurring over the course of 8 days.

January Precipitation Trends in Saint Martin

The chart displays monthly precipitation patterns in Saint Martin, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Saint Martin, January typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Saint Martin

In Saint Martin in January, humidity is 82%. With an average temperature of 12°C (53°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky, as you navigate through the thick air that weighs heavily on your skin.

January Average Humidity in Saint Martin

This chart illustrates the average monthly humidity levels in Saint Martin, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Saint Martin is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Saint Martin

In Saint Martin in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Saint Martin.

Maximum UV Index Levels in Saint Martin for January

The chart shows the monthly maximum UV Index (UVI) for Saint Martin in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Saint Martin typically reaches 5, which falls under the moderate exposure category.

Data source: Saint Martin January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Saint Martin Compares to Other Months

Weather in Saint Martin varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Saint Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint Martin, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	92 mm (3.6 inches)	82%	moderate
February Weather	15°C (59°F)	107 mm (4.2 inches)	80%	very high
March Weather	18°C (64°F)	88 mm (3.5 inches)	80%	very high
April Weather	20°C (68°F)	122 mm (4.8 inches)	78%	extreme
May Weather	24°C (76°F)	132 mm (5.2 inches)	73%	extreme
June Weather	27°C (81°F)	247 mm (9.7 inches)	71%	extreme
July Weather	28°C (82°F)	189 mm (7.5 inches)	79%	extreme
August Weather	27°C (82°F)	224 mm (8.8 inches)	78%	extreme
September Weather	26°C (79°F)	145 mm (5.7 inches)	80%	very high
October Weather	22°C (73°F)	132 mm (5.2 inches)	76%	very high
November Weather	15°C (60°F)	58 mm (2.3 inches)	83%	high
December Weather	13°C (56°F)	110 mm (4.3 inches)	87%	moderate