Mild
Average highs are around 22°C, so days are mild rather than hot.
Weather Guide
Manitoulin Island, Canada Average Monthly Weather
Weather score32Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 10°C, sunshine averages 5.4h per day, and rainfall totals about 854mm. Sea temperatures average 9°C across the year.
Annual weather
Annual averages
Temp
10°C
Rain
854mm
Annual total
Sun
5.4h
Sea
9°C
Weather score
32
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 80mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 19°C, so the water can feel cool.
Map
Weather map
Compare Manitoulin Island, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August22°C average high
August is one of Manitoulin Island'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
August80mm average rain
August is wetter than Manitoulin Island's yearly average, so flexible plans matter more.
Driest monthsJanuary to August and October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August7.8 hours average sun
August is brighter than Manitoulin Island's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August19°C average sea
August is one of Manitoulin Island's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
Weather score
August55 weather score
August scores above Manitoulin Island's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels near Manitoulin Island, Canada
Marriott
Fairfield Inn & Suites SudburySudbury, Ontario, Canada
TownePlace Suites by Marriott SudburySudbury, Ontario, Canada
TownePlace Suites by Marriott KincardineKincardine, Ontario, Canada
Delta Hotels Sault Ste. Marie WaterfrontSault Ste. Marie, Ontario, Canada
Fairfield Inn & Suites Sault Ste. MarieSault Ste. Marie, Ontario, Canada
The Westin Trillium House, Blue MountainBlue Mountains, Ontario, Canada