Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Shiretoko National Park, Japan Average Monthly Weather
Weather score23Poor annual avg
Best months: August, September, February
Across the year, average daytime temperatures are around 6°C, sunshine averages 4.8h per day, and rainfall totals about 996mm. Sea temperatures average 7°C across the year.
Annual weather
Annual averages
Temp
6°C
Rain
996mm
Annual total
Sun
4.8h
Sea
7°C
Weather score
23
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 125mm, so some wet days are possible.
Limited sun
Sunshine averages 4.1h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Shiretoko National Park, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August18°C average high
August is one of Shiretoko National Park's hottest months, so shade and slower afternoons matter.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
August125mm average rain
August is one of Shiretoko National Park's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to March and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August4.1 hours average sun
August is below Shiretoko National Park's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsFebruary to May and September to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August17°C average sea
August is one of Shiretoko National Park's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
August30 weather score
August is one of Shiretoko National Park's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsFebruary to May and July to September
These months have the strongest weather score in the monthly averages.
