Mild
Average highs are around 24°C, so days are mild rather than hot.
Weather Guide
Best months: August, July, September
Across the year, average daytime temperatures are around 11°C, sunshine averages 4.7h per day, and rainfall totals about 1244mm. Sea temperatures average 13°C across the year.

Annual averages
Temp
11°C
Rain
1244mm
Annual total
Sun
4.7h
Sea
13°C
Weather score
27
Poor avg
Mild
Average highs are around 24°C, so days are mild rather than hot.
Showers
Rainfall averages 167mm, so some wet days are possible.
Limited sun
Sunshine averages 4.9h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Compare Sapporo, Hokkaido, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
August24°C average high
August is one of Sapporo's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August167mm average rain
August is one of Sapporo's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to June and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August4.9 hours average sun
August sits close to Sapporo's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to June and September
This stretch has the strongest sunshine in the monthly averages.
August22°C average sea
August is one of Sapporo's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 19°C in this stretch, so swimming comfort is at its strongest.
August49 weather score
August is one of Sapporo's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.