Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
July verdict
Cornwall (Ontario), Canada in July
Weather score72Very good
Very good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 8.5h per day, so bright days are a strong part of the month. Rainfall averages 83mm, so some wet days are possible.
July weather
Monthly averages
Temp
27°C
Rain
83mm
Sun
8.5h
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 83mm, so some wet days are possible.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Cornwall (Ontario), Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July27°C average high
July is one of Cornwall (Ontario)'s warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
July83mm average rain
July sits near Cornwall (Ontario)'s yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to July and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July8.5 hours average sun
July is one of Cornwall (Ontario)'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.
Weather score
July72 weather score
July is one of Cornwall (Ontario)'s best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
Hotels near Cornwall (Ontario), Canada
Marriott
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