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Belleville (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Belleville.
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Climate overview of Belleville
Belleville, Ontario, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to -1°C (30°F) in January.
The city has a wet climate, receiving around 1021 mm (40 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. April is the wettest month. July is the sunniest month, averaging 9.3 hours of sunshine per day.
Belleville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Belleville - and find the best time to visit.
Monthly Temperature in Belleville
Depending on the time of the year, temperatures range from comfortable to very cold in Belleville. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -1°C (30°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -11°C (12°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Belleville
Belleville has a relatively rain/snowy climate with high precipitation levels, averaging 1021 mm (40 in) of rain/snowfall annually. The wettest period in Belleville occurs in April, which receives around 99 mm (3.9 in) of precipitation. During the driest month, February, Belleville experiences moderate snowfall, totaling 67 mm (2.6 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Belleville 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 Belleville
In Belleville, summer days are longer and more sunny, with daily sunshine hours peaking at 9.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Kingston, Canada (72 KM, 45 Miles).
Daily hours of sunshine
Data from: Kingston, Canada (72 KM, 45 Miles).
Daily percentage of sunshine
Data from: Kingston, Canada (72 KM, 45 Miles).
Best Time to Visit Belleville
For comfortable weather, consider visiting Belleville in May, June, July, August and September. Conditions are usually least favourable in January, February, March, 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
very cold
Feb
cold
Mar
cold
Apr
mixed
May
excellent
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
good
Nov
cold
Dec
cold
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July, August and September
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Belleville
What is the best time to visit Belleville?
May, June, July, August and September typically offer the most optimal weather in Belleville. In contrast, January, February, March, November and December tend to have less optimal conditions. Belleville has warm summers and very cold winters.
What temperatures can I expect in Belleville?
Daytime highs range from -1°C (30°F) in January to 28°C (82°F) in July. Nighttime lows range from -11°C (12°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Belleville get?
Annual rainfall is around 1021 mm (40 in). April is the wettest month with 99 mm (3.9 in), while February is the driest with 67 mm (2.6 in).
How sunny is Belleville?
Belleville receives around 1,971 hours of sunshine per year. July is the sunniest month with 280 hours, while December is the cloudiest with just 75 hours.
Belleville 3-Day Forecast
Belleville on the map
Belleville is highlighted - select any city to see its climate.
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