Cool
Average highs are around 19°C, so pack for cooler days.
Weather Guide
Best months: July, August, June
Across the year, average daytime temperatures are around 5°C, sunshine averages 5h per day, and rainfall totals about 1104mm. Sea temperatures average 5°C across the year.
Annual averages
Temp
5°C
Rain
1104mm
Annual total
Sun
5h
Sea
5°C
Weather score
26
Poor avg
Cool
Average highs are around 19°C, so pack for cooler days.
Showers
Rainfall averages 99mm, so some wet days are possible.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Sept-Îles, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
August19°C average high
August is one of Sept-Îles' hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August99mm average rain
August is wetter than Sept-Îles' yearly average, so flexible plans matter more.
Driest monthsJanuary to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August6.8 hours average sun
August is brighter than Sept-Îles' 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.
August15°C average sea
August is one of Sept-Îles' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to August
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
August37 weather score
August scores above Sept-Îles' 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.