Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Naruko, Japan in September
Weather score41Mixed
Mixed for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 4.3h per day, so this is not one of the brighter months. Rainfall averages 171mm, so some wet days are possible.
September weather
Monthly averages
Temp
22°C
Rain
171mm
Sun
4.3h
Sea
22°C
Weather score
41
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 171mm, so some wet days are possible.
Limited sun
Sunshine averages 4.3h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 22°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Naruko, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September171mm average rain
September is one of Naruko's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to May and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.3 hours average sun
September is below Naruko's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September22°C average sea
September is one of Naruko's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
September41 weather score
September sits close to Naruko's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
