October Weather in Ajax, Canada

Last updated: June 18, 2025

In Ajax, Canada, the average temperature in October hovers around 13°C (55°F), with minimums dipping to 2°C (36°F) and maximums peaking at 24°C (75°F). During this month, expect approximately 118 mm (4.6 in) of precipitation spread over 14 days, contributing to the high average humidity of 83%.

October Temperature in Ajax

In October in Ajax, the average temperature is 13°C (55°F). The maximum can reach 24°C (75°F), and the minimum can be as low as 2°C (36°F). Packing layers would be ideal for travelers, as you can experience both warm and cool temperatures throughout the day.

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

The chart illustrates October temperature patterns in Ajax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ajax, October typically has an average temperature of 13°C (55°F), with highs reaching up to 24°C (75°F) and lows dropping to around 2°C (36°F).

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

October Precipitation in Ajax

In Ajax in October, the precipitation amount is 118 mm (4.6 in) over a span of 14 days.

October Precipitation Trends in Ajax

The chart displays monthly precipitation patterns in Ajax, 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 Ajax, October typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 14 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 Ajax

In Ajax in October humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.

October Average Humidity in Ajax

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

In Ajax 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 Ajax.

Maximum UV Index Levels in Ajax for October

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

Data source: Ajax 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 Ajax Compares to Other Months

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

This table compares monthly weather conditions in Ajax, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	84 mm (3.3 inches)	91%	low
February Weather	-2°C (28°F)	88 mm (3.5 inches)	91%	moderate
March Weather	1°C (33°F)	77 mm (3.0 inches)	88%	moderate
April Weather	5°C (41°F)	122 mm (4.8 inches)	88%	very high
May Weather	9°C (49°F)	105 mm (4.1 inches)	82%	very high
June Weather	16°C (60°F)	77 mm (3.0 inches)	79%	very high
July Weather	21°C (70°F)	70 mm (2.7 inches)	77%	very high
August Weather	22°C (71°F)	78 mm (3.1 inches)	72%	very high
September Weather	18°C (65°F)	73 mm (2.9 inches)	76%	high
October Weather	13°C (55°F)	118 mm (4.6 inches)	83%	moderate
November Weather	5°C (41°F)	102 mm (4.0 inches)	88%	moderate
December Weather	1°C (33°F)	96 mm (3.8 inches)	87%	low