Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Suo-Oshima, Japan in September
Weather score60Good
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 5.1h per day, enough for a balanced month. Rainfall averages 181mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
27°C
Rain
181mm
Sun
5.1h
Sea
25°C
Weather score
60
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 181mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Suo-Oshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September27°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
September181mm average rain
September sits near Suo-Oshima's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September5.1 hours average sun
September sits close to Suo-Oshima's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September25°C average sea
September is one of Suo-Oshima's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
September60 weather score
September is one of Suo-Oshima's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
Hotels near Suo-Oshima, Japan
Marriott
Sheraton Grand Hiroshima HotelHiroshima City, Hiroshima, Japan
SOIL Nagatoyumoto, a Member of Design HotelsNagato, Yamaguchi, Japan
Fairfield by Marriott Hiroshima SeraSera, Hiroshima, Japan
Fairfield by Marriott Fukuoka UkihaUkiha, Fukuoka, Japan
Fairfield by Marriott Kumamoto AsoAso, Kumamoto, Japan
Yoruya, a Member of Design Hotels™Kurashiki shi, Japan