Cool
Average highs are around 16°C, so pack for cooler days.
September verdict
Shiretoko National Park, Japan in September
Weather score27Poor
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 131mm, so some wet days are possible.
September weather
Monthly averages
Temp
16°C
Rain
131mm
Sun
5.2h
Sea
17°C
Weather score
27
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 131mm, so some wet days are possible.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
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
September16°C average high
September 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
September131mm average rain
September 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
September5.2 hours average sun
September is brighter than Shiretoko National Park's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsFebruary to May and September to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September17°C average sea
September 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
September27 weather score
September scores above Shiretoko National Park's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsFebruary to May and July to September
These months have the strongest weather score in the monthly averages.
