March Weather in Roseau, United States

Last updated: June 24, 2025

In March, the average temperature in Roseau, United States hovers around -4°C (25°F). However, be prepared for a temperature range that can dip as low as -31°C (-23°F) and reach a surprising maximum of 20°C (69°F). With an average humidity of 90%, the climate can feel quite chilly, complemented by 23 mm (0.9 in) of precipitation spread over about 5 days.

March Temperature in Roseau

In March in Roseau, the average temperature is -4°C (25°F), with maximums reaching 20°C (69°F) and minimums plummeting to -31°C (-23°F). Travelers should pack accordingly to prepare for a wide range of temperatures.

March Weather in Roseau: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Roseau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roseau, March typically has an average temperature of -4°C (25°F), with highs reaching up to 20°C (69°F) and lows dropping to around -31°C (-23°F).

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

March Precipitation in Roseau

In Roseau in March, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

March Precipitation Trends in Roseau

The chart displays monthly precipitation patterns in Roseau, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Roseau, March typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Roseau

In Roseau in March humidity is 90%. With an average temperature of -4°C (25°F), this humidity feels like a dense, icy blanket wrapping around you, making travel feel particularly stifling in the cold despite the sub-zero temperatures.

March Average Humidity in Roseau

This chart illustrates the average monthly humidity levels in Roseau, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Roseau is approximately 90%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Roseau

In Roseau in March, 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 Roseau.

Maximum UV Index Levels in Roseau for March

The chart shows the monthly maximum UV Index (UVI) for Roseau in March, 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 March, the maximum UV index in Roseau typically reaches 5, which falls under the moderate exposure category.

Data source: Roseau March 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 March Weather in Roseau Compares to Other Months

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

This table compares monthly weather conditions in Roseau, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-14°C (8°F)	20 mm (0.8 inches)	94%	low
February Weather	-15°C (6°F)	22 mm (0.9 inches)	91%	moderate
March Weather	-4°C (25°F)	23 mm (0.9 inches)	90%	moderate
April Weather	3°C (37°F)	38 mm (1.5 inches)	81%	high
May Weather	12°C (54°F)	60 mm (2.4 inches)	74%	very high
June Weather	19°C (66°F)	80 mm (3.2 inches)	75%	very high
July Weather	21°C (70°F)	74 mm (2.9 inches)	74%	very high
August Weather	19°C (66°F)	74 mm (2.9 inches)	77%	very high
September Weather	14°C (57°F)	80 mm (3.1 inches)	75%	high
October Weather	5°C (42°F)	82 mm (3.2 inches)	78%	moderate
November Weather	-4°C (24°F)	30 mm (1.2 inches)	87%	low
December Weather	-10°C (14°F)	34 mm (1.3 inches)	93%	low