Cool
Average highs are around 13°C, so pack for cooler days.
October verdict
Cornwall (Ontario), Canada in October
Weather score28Poor
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 4.2h per day, so this is not one of the brighter months. Rainfall averages 76mm, which is relatively low for holiday planning.
October weather
Monthly averages
Temp
13°C
Rain
76mm
Sun
4.2h
Weather score
28
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 76mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.2h per day, so this is not one of the brighter months.
Map
Weather map
Compare Cornwall (Ontario), Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October13°C average high
October is close to Cornwall (Ontario)'s yearly temperature average, giving a typical read on daytime heat.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
October76mm average rain
October 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
October4.2 hours average sun
October is below Cornwall (Ontario)'s yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
October28 weather score
October scores below Cornwall (Ontario)'s yearly average, so the weather trade-offs are more noticeable.
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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Courtyard Ottawa EastOttawa, Ontario, Canada
TownePlace Suites by Marriott Ottawa BarrhavenOttawa, Ontario, Canada
AC Hotel Ottawa DowntownOttawa, Ontario, Canada