January Weather in Oakville, United States

Last updated: June 24, 2025

In January, the average temperature in Oakville, United States hovers around 5°C (41°F). The weather can be quite variable, with a minimum dropping to -8°C (17°F) and a maximum reaching 14°C (58°F). Expect average precipitation of 205 mm (8.1 in) spread across 16 days, coupled with a high average humidity of 86%. Plan accordingly for a chilly and damp month!

January Temperature in Oakville

In January in Oakville, the average temperature is 5°C (41°F). Maximums can reach 14°C (58°F) and minimums can drop as low as -8°C (17°F). Be prepared for a mix of mild and chilly weather, making it essential to pack layers for your travels.

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

The chart illustrates January 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, January typically has an average temperature of 5°C (41°F), with highs reaching up to 14°C (58°F) and lows dropping to around -8°C (17°F).

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

January Precipitation in Oakville

In Oakville in January, the precipitation amount is 205 mm (8.1 in) over a duration of 16 days.

January Precipitation Trends in Oakville

The chart displays monthly precipitation patterns in Oakville, 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 Oakville, January typically receives around 205 mm (8.1 inches) of precipitation spread over approximately 16 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 Oakville

In Oakville in January humidity is 86%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite challenging due to the chill combined with the stickiness in the air.

January Average Humidity in Oakville

This chart illustrates the average monthly humidity levels in Oakville, 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 Oakville is approximately 86%, 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 Oakville

In Oakville 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 Oakville, you can visit Hourly UV Index in Oakville.

Maximum UV Index Levels in Oakville for January

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

Data source: Oakville 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 Oakville Compares to Other Months

Weather in Oakville varies notably across the year, with each month offering distinct climate conditions. This page compares January’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 January’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