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Bowmanville (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bowmanville.
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Climate overview of Bowmanville
Temperatures in Bowmanville, Ontario, Canada, vary greatly throughout the year. July is the hottest month at 26°C (79°F), while January is the coldest at 0°C (32°F).
Bowmanville sees a moderate amount of rain/snowfall, totalling around 968 mm (38 in) per year. It experiences warm summers and very cold winters, creating some seasonal variation. The most sunshine falls in July, with an average of 9.3 hours of daily sunshine.
Bowmanville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bowmanville - and find the best time to visit.
Monthly Temperature in Bowmanville
The climate in Bowmanville is known for significant temperature differences throughout the year, making the weather dynamic. 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
Rainfall in Bowmanville
Generally, Bowmanville receives mid-range precipitation levels, with 968 mm (38 in) annually. Year-round, Bowmanville has a balanced climate with minimal variation in precipitation. The difference between the wettest month, April, with 92 mm (3.6 in), and the driest month, February, with 66 mm (2.6 in), is minimal. For more details, please visit our Bowmanville Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bowmanville
Seasonal changes in sunshine hours are quite dramatic in Bowmanville. 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
Data from: Toronto, Canada (63 KM, 39 Miles).
Daily hours of sunshine
Data from: Toronto, Canada (63 KM, 39 Miles).
Daily percentage of sunshine
Data from: Toronto, Canada (63 KM, 39 Miles).
Humidity in Bowmanville by Month
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
Data from: Toronto, Canada (63 KM, 39 Miles).
Best Time to Visit Bowmanville
For comfortable weather, consider visiting Bowmanville in June, July, August and September. Conditions are usually least favourable in January, February, March, April, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
cold
Apr
cold
May
good
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
good
Nov
cold
Dec
cold
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Bowmanville
What is the best time to visit Bowmanville?
June, July, August and September typically offer the most optimal weather in Bowmanville. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Bowmanville has warm summers and very cold winters.
What temperatures can I expect in Bowmanville?
Daytime highs range from 0°C (32°F) in January to 26°C (79°F) in July. Nighttime lows range from -9°C (16°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Bowmanville get?
Annual rainfall is around 968 mm (38 in). April is the wettest month with 92 mm (3.6 in), while February is the driest with 66 mm (2.6 in).
How sunny is Bowmanville?
Bowmanville receives around 2,070 hours of sunshine per year. July is the sunniest month with 280 hours, while December is the cloudiest with just 78 hours. Overall, Bowmanville enjoys abundant sunshine.
Bowmanville 3-Day Forecast
Bowmanville on the map
Bowmanville is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
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22°C (72°F) Ottawa22°C (72°F) Quebec City
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