October Weather in Roseau, United States

Last updated: June 24, 2025

In October, the average temperature in Roseau, United States hovers around 5°C (42°F). However, be prepared for a temperature range that can dip to a chilly -10°C (14°F) and soar up to a warm 27°C (81°F). Expect 82 mm (3.2 in) of precipitation over 10 days, coupled with an average humidity of 78%—a reminder of the region's dampness.

October Temperature in Roseau

In October in Roseau, the average temperature is 5°C (42°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriately for both warm and chilly conditions.

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

The chart illustrates October 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, October typically has an average temperature of 5°C (42°F), with highs reaching up to 27°C (81°F) and lows dropping to around -10°C (14°F).

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

October Precipitation in Roseau

In Roseau in October, the total precipitation amount is 82 mm (3.2 in) observed over a span of 10 days.

October Precipitation Trends in Roseau

The chart displays monthly precipitation patterns in Roseau, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Roseau, October typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Roseau

In Roseau in October, humidity is 78%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and urging travelers to bundle up against the cold, sticky air.

October Average Humidity in Roseau

This chart illustrates the average monthly humidity levels in Roseau, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Roseau is approximately 78%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Roseau

In Roseau in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Roseau for better planning.

Maximum UV Index Levels in Roseau for October

The chart shows the monthly maximum UV Index (UVI) for Roseau in October, 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 October, the maximum UV index in Roseau typically reaches 4, which falls under the moderate exposure category.

Data source: Roseau October 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 October 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 October’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 October’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