October Weather in Belleville, Canada

Last updated: June 18, 2025

In Belleville, Canada, the average temperature in October hovers around 10°C (51°F). Expect a minimum of -3°C (28°F) and the potential for a maximum of 27°C (80°F). This month brings about 126 mm (5.0 in) of precipitation, spread across 13 days, and an average humidity of 83%. Be prepared for some wet and chilly days!

October Temperature in Belleville

In October in Belleville, the average temperature is 10°C (51°F). The maximum can reach 27°C (80°F), while the minimum can drop to as low as -3°C (28°F). Be sure to pack for a range of temperatures to fully enjoy your trip!

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

The chart illustrates October temperature patterns in Belleville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belleville, October typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (80°F) and lows dropping to around -3°C (28°F).

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

October Precipitation in Belleville

In Belleville in October, the precipitation amount is 126 mm (5.0 in) over the course of 13 days.

October Precipitation Trends in Belleville

The chart displays monthly precipitation patterns in Belleville, 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 Belleville, October typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Belleville

In Belleville in October, humidity is 83%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that permeates your clothes, making it essential to dress in layers for travel, as the cool air combined with the high humidity can create an uncomfortable and bone-chilling atmosphere.

October Average Humidity in Belleville

This chart illustrates the average monthly humidity levels in Belleville, 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 Belleville is approximately 83%, 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 Belleville

In Belleville in October, 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 Belleville.

Maximum UV Index Levels in Belleville for October

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

Data source: Belleville 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 Belleville Compares to Other Months

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

This table compares monthly weather conditions in Belleville, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	69 mm (2.7 inches)	93%	low
February Weather	-5°C (24°F)	72 mm (2.8 inches)	94%	moderate
March Weather	0°C (32°F)	65 mm (2.6 inches)	87%	moderate
April Weather	6°C (43°F)	114 mm (4.5 inches)	82%	very high
May Weather	13°C (56°F)	95 mm (3.7 inches)	74%	very high
June Weather	19°C (66°F)	92 mm (3.6 inches)	68%	very high
July Weather	22°C (72°F)	89 mm (3.5 inches)	67%	very high
August Weather	21°C (70°F)	102 mm (4.0 inches)	67%	very high
September Weather	17°C (63°F)	79 mm (3.1 inches)	74%	high
October Weather	10°C (51°F)	126 mm (5.0 inches)	83%	moderate
November Weather	3°C (37°F)	90 mm (3.5 inches)	89%	moderate
December Weather	-2°C (28°F)	79 mm (3.1 inches)	91%	low