Oakville Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to chilly in Oakville. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in August to a chilly 10°C (50°F) in the coolest month, January.

Nights vary from 23°C (73°F) in August to around -1°C (30°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Oakville has a relatively rain/snowy climate with high precipitation levels, averaging 1418 mm (56 in) of rain/snowfall annually. Oakville offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month May (165 mm (6.5 in)) and the driest month August (84 mm (3.3 in)) is not too significant. For more details, please visit our Oakville Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Oakville serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.9 hours of sunshine daily, and embrace the darker days in December, offering only 5.1 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Oakville.

The city experiences its highest humidity in September, reaching 71%. In March, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The average wind speed over the year ranges from 2 m/s (4 knots) to 4 m/s (8 knots). It is lower in August and higher in February, March and April. What does this mean?

The mean monthly wind speed over the year (meters per second)