Whitby (ON) Weather & Climate: Best Time to Visit

In Whitby, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a very cold 0°C (32°F) during cooler months like January.

At night, you can expect temperatures ranging from 17°C (63°F) in July to around -9°C (16°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Whitby receives a reasonable amount of rain/snowfall, with an annual precipitation of 991 mm (39 in). Year-round, Whitby has a balanced climate with minimal variation in precipitation. The difference between the wettest month, April, with 94 mm (3.7 in), and the driest month, February, with 66 mm (2.6 in), is minimal. For more details, please visit our Whitby Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Whitby. While July receives considerable daily sunshine with up to 9.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.6 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The city experiences its highest humidity in September, reaching 87%. In April, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year