Mild
Average highs are around 20°C, so days are mild rather than hot.
September verdict
Belleville, Ontario, Canada in September
Weather score46Mixed
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 74mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
20°C
Rain
74mm
Sun
6h
Sea
20°C
Weather score
46
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 74mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 20°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
September20°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September74mm average rain
September sits near Belleville's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to October and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6 hours average sun
September sits close to Belleville's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September20°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
September46 weather score
September sits close to Belleville's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
