January Weather in Wellesley, Canada

Last updated: June 18, 2025

In January, the average temperature in Wellesley, Canada hovers around -5°C (22°F), with minimums reaching as low as -25°C (-13°F) and maximums peaking at 11°C (53°F). During this month, expect about 77 mm (3.0 in) of precipitation over 11 days, while the air remains quite humid with an average humidity of 90%. Stay cozy!

January Temperature in Wellesley

In January in Wellesley, the average temperature is -5°C (22°F). The maximum can reach 11°C (53°F) and the minimum can be as low as -25°C (-13°F). Travelers should be prepared for cold weather conditions and dress warmly to enjoy their stay.

January Weather in Wellesley: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Wellesley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wellesley, January typically has an average temperature of -5°C (22°F), with highs reaching up to 11°C (53°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Wellesley

In Wellesley in January, the precipitation amount is 77 mm (3.0 in) over the course of 11 days.

January Precipitation Trends in Wellesley

The chart displays monthly precipitation patterns in Wellesley, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Wellesley, January typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Wellesley

In Wellesley in January, humidity is 90%. With an average temperature of -5°C (22°F), this humidity feels like walking through a frozen fog, where each breath brings a chill that clings to your skin, making every step outside a brisk challenge.

January Average Humidity in Wellesley

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

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

January UV Index in Wellesley

In Wellesley in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Wellesley, you can visit Hourly UV Index in Wellesley.

Maximum UV Index Levels in Wellesley for January

The chart shows the monthly maximum UV Index (UVI) for Wellesley in January, 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 January, the maximum UV index in Wellesley typically reaches 2, which falls under the low exposure category.

Data source: Wellesley January 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 January Weather in Wellesley Compares to Other Months

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

This table compares monthly weather conditions in Wellesley, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (22°F)	77 mm (3.0 inches)	90%	low
February Weather	-5°C (23°F)	81 mm (3.2 inches)	90%	moderate
March Weather	0°C (31°F)	70 mm (2.8 inches)	87%	moderate
April Weather	5°C (42°F)	101 mm (4.0 inches)	87%	very high
May Weather	13°C (55°F)	98 mm (3.9 inches)	82%	very high
June Weather	18°C (65°F)	108 mm (4.2 inches)	81%	very high
July Weather	21°C (70°F)	79 mm (3.1 inches)	79%	very high
August Weather	20°C (68°F)	102 mm (4.0 inches)	80%	very high
September Weather	16°C (61°F)	83 mm (3.3 inches)	81%	high
October Weather	10°C (50°F)	111 mm (4.4 inches)	84%	moderate
November Weather	2°C (36°F)	89 mm (3.5 inches)	88%	moderate
December Weather	-2°C (29°F)	77 mm (3.0 inches)	87%	low