January Weather in Saint Martins, United States

Last updated: June 24, 2025

The average temperature in Saint Martins, United States during January is a chilly 1°C (33°F). Prepare for extreme variations where the minimum can dip to -20°C (-4°F) and the maximum can soar to 21°C (69°F). Expect about 70 mm (2.8 in) of precipitation spread over 7 days, accompanied by an average humidity of 82%. Be ready for a diverse weather experience!

January Temperature in Saint Martins

In January in Saint Martins, the average temperature is 1°C (33°F), with maximums potentially reaching 21°C (69°F) and minimums dropping to as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriately for both warmer and colder conditions.

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

The chart illustrates January temperature patterns in Saint Martins, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Martins, January typically has an average temperature of 1°C (33°F), with highs reaching up to 21°C (69°F) and lows dropping to around -20°C (-4°F).

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

January Precipitation in Saint Martins

In Saint Martins in January, the precipitation amount is 70 mm (2.8 in) over a span of 7 days.

January Precipitation Trends in Saint Martins

The chart displays monthly precipitation patterns in Saint Martins, 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 Martins, January typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Saint Martins

In Saint Martins in January humidity is 82%. With an average temperature of 1°C (33°F), this humidity feels like a biting chill that dampens your clothes and makes each breath a bit heavier, making travel uncomfortable and necessitating extra layers for warmth and protection against the moisture.

January Average Humidity in Saint Martins

This chart illustrates the average monthly humidity levels in Saint Martins, 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 Martins 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 Martins

In Saint Martins in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Saint Martins, you can check the information here.

Maximum UV Index Levels in Saint Martins for January

The chart shows the monthly maximum UV Index (UVI) for Saint Martins 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 Martins typically reaches 3, which falls under the moderate exposure category.

Data source: Saint Martins 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 Martins Compares to Other Months

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

This table compares monthly weather conditions in Saint Martins, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	70 mm (2.8 inches)	82%	moderate
February Weather	2°C (36°F)	65 mm (2.6 inches)	80%	moderate
March Weather	9°C (48°F)	120 mm (4.7 inches)	80%	high
April Weather	13°C (55°F)	124 mm (4.9 inches)	80%	very high
May Weather	19°C (67°F)	163 mm (6.4 inches)	82%	very high
June Weather	25°C (77°F)	95 mm (3.7 inches)	83%	extreme
July Weather	26°C (80°F)	108 mm (4.3 inches)	81%	extreme
August Weather	25°C (77°F)	94 mm (3.7 inches)	80%	very high
September Weather	22°C (73°F)	56 mm (2.2 inches)	76%	very high
October Weather	15°C (59°F)	99 mm (3.9 inches)	76%	high
November Weather	7°C (45°F)	59 mm (2.3 inches)	85%	moderate
December Weather	4°C (40°F)	41 mm (1.6 inches)	86%	moderate