Climate Insights for Belleville

The climate in Belleville is temperate. The average annual temperature is 13°C and approximately 779mm of precipitation falls per year. Maggio is the wettest month, receiving around 166mm of rainfall. Belleville is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Giugno, Agosto. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to -6°C. Light snow can occur between January and December.

Belleville has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 33°C and the mean temperature sits around 27°C. The coldest month is Gennaio, when overnight lows fall to -6°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.

Belleville is a relatively dry area, receiving approximately 779mm of precipitation annually, which averages out to around 65mm per month. The wettest month is May, averaging 166mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 22mm. That's 144mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 37cm annually. January is the snowiest month with approximately 14cm.

Belleville is moderately windy, with an average annual wind speed of 21km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months.

It is currently winter in Belleville, which began on December 21, 2026. Belleville is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 33°C, while the coldest stretch bottoms out in Gennaio near -6°C. Spring is next, beginning on March 20, 2026 — 2 days from now.

The best time to visit Belleville is during Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 74mm per month. By contrast, Luglio can be uncomfortably hot with highs reaching 33°C, while Gennaio is the coldest period with lows dropping to -6°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Belleville based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.