October Weather in Oakville, United States

Last updated: June 24, 2025

In October, the average temperature in Oakville, United States hovers around 10°C (50°F), providing a cool atmosphere. Expect your thermometer to dip as low as -3°C (27°F), while on warmer days, it can rise to a comfortable 24°C (75°F). With 137 mm (5.4 in) of precipitation spread over 12 days, it's wise to carry an umbrella. The air is quite damp, with an average humidity of 83%, creating a refreshing, albeit slightly brisk, environment.

October Temperature in Oakville

In October in Oakville, the average temperature is 10°C (50°F), with maximums reaching 24°C (75°F) and minimums plummeting to as low as -3°C (27°F). Be prepared for a mix of mild days and chilly nights when traveling during this time.

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

The chart illustrates October temperature patterns in Oakville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oakville, October typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (75°F) and lows dropping to around -3°C (27°F).

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

October Precipitation in Oakville

In Oakville in October, the precipitation amount is 137 mm (5.4 in) that occurs over the course of 12 days.

October Precipitation Trends in Oakville

The chart displays monthly precipitation patterns in Oakville, 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 Oakville, October typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 12 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 Oakville

In Oakville in October, humidity is 83%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less comfortable and prompting visitors to seek cozy indoor activities.

October Average Humidity in Oakville

This chart illustrates the average monthly humidity levels in Oakville, 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 Oakville 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 Oakville

In Oakville 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 Oakville.

Maximum UV Index Levels in Oakville for October

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

Data source: Oakville 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 Oakville Compares to Other Months

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

This table compares monthly weather conditions in Oakville, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	205 mm (8.1 inches)	86%	low
February Weather	4°C (40°F)	171 mm (6.7 inches)	84%	moderate
March Weather	6°C (44°F)	142 mm (5.6 inches)	85%	moderate
April Weather	9°C (49°F)	122 mm (4.8 inches)	83%	high
May Weather	12°C (55°F)	75 mm (2.9 inches)	84%	very high
June Weather	15°C (59°F)	57 mm (2.2 inches)	84%	very high
July Weather	17°C (63°F)	11 mm (0.4 inches)	82%	very high
August Weather	18°C (64°F)	13 mm (0.5 inches)	73%	very high
September Weather	15°C (60°F)	90 mm (3.5 inches)	74%	high
October Weather	10°C (50°F)	137 mm (5.4 inches)	83%	moderate
November Weather	7°C (45°F)	198 mm (7.8 inches)	86%	moderate
December Weather	4°C (40°F)	210 mm (8.3 inches)	87%	low