Warm
Average highs sit around 26°C, giving warm days by monthly-average standards.
Weather Guide
Belleville, Ontario, Canada Average Monthly Weather
Weather score37Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 12°C, sunshine averages 5.7h per day, and rainfall totals about 852mm. Sea temperatures average 10°C across the year.
Annual weather
Annual averages
Temp
12°C
Rain
852mm
Annual total
Sun
5.7h
Sea
10°C
Weather score
37
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 55mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.3h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Belleville, Ontario, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July26°C average high
July is one of Belleville's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July55mm average rain
July is one of Belleville's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to October and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July9.3 hours average sun
July is one of Belleville's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July21°C average sea
July is one of Belleville's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
July70 weather score
July is one of Belleville's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
