Mild
Average highs are around 26°C, so days are mild rather than hot.
Weather Guide
Hakodate, Hokkaido, Japan Average Monthly Weather
Weather score29Poor annual avg
Best months: August, July, September
Across the year, average daytime temperatures are around 13°C, sunshine averages 4.6h per day, and rainfall totals about 1183mm. Sea temperatures average 14°C across the year.
Annual weather
Annual averages
Temp
13°C
Rain
1183mm
Annual total
Sun
4.6h
Sea
14°C
Weather score
29
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 156mm, so some wet days are possible.
Some sun
Sunshine averages 5.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Hakodate, Hokkaido, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August26°C average high
August is one of Hakodate'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
August156mm average rain
August is wetter than Hakodate's yearly average, so flexible plans matter more.
Driest monthsJanuary to June and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August5.1 hours average sun
August is brighter than Hakodate's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August23°C average sea
August is one of Hakodate's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 19°C in this stretch, so swimming comfort is at its strongest.
Weather score
August55 weather score
August is one of Hakodate'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.
