Warm
Average highs sit around 26°C, giving warm days by monthly-average standards.
September verdict
Niigata, Japan in September
Weather score57Good
Good for holiday weather
Average highs sit around 26°C, giving warm days by monthly-average standards. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 158mm, so some wet days are possible.
September weather
Monthly averages
Temp
26°C
Rain
158mm
Sun
4.6h
Sea
25°C
Weather score
57
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 158mm, so some wet days are possible.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Niigata, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September26°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
September158mm average rain
September sits near Niigata's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary to June and August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.6 hours average sun
September sits close to Niigata's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September25°C average sea
September is one of Niigata's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
September57 weather score
September is one of Niigata's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
Hotels near Niigata, Japan
Marriott
The Ritz-Carlton, NikkoNikko, Tochigi, Japan
Fairfield by Marriott Tochigi NikkoTochigi, Tochigi, Japan
Fairfield by Marriott Tochigi UtsunomiyaTochigi, Tochigi, Japan
The Westin SendaiSendai, Miyagi, Japan
Four Points Flex by Sheraton UtsunomiyaUtsunomiya, Tochigi, Japan
Courtyard HakubaNagano, Nagano, Japan