Mild
Average highs are around 26°C, so days are mild rather than hot.
September verdict
Tsushima, Japan in September
Weather score58Good
Good for holiday weather
Average highs are around 26°C, so days are mild rather than hot. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 207mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
26°C
Rain
207mm
Sun
5.2h
Sea
26°C
Weather score
58
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 207mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Tsushima, 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 monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
September207mm average rain
September sits near Tsushima'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
September5.2 hours average sun
September is below Tsushima's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September26°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
September58 weather score
September is one of Tsushima's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsAugust to October
These months have the strongest weather score in the monthly averages.
Hotels near Tsushima, Japan
Marriott
Iki Retreat by Onko Chishin, a Member of Design Hotels™Iki, Nagasaki, Japan
The Ritz-Carlton, FukuokaFukuoka, Japan
Four Points Flex by Sheraton Fukuoka HakataFukuoka, Fukuoka, Japan
Fairfield by Marriott Saga Ureshino OnsenUreshino, Saga, Japan
SOIL Nagatoyumoto, a Member of Design HotelsNagato, Yamaguchi, Japan
Fairfield by Marriott Fukuoka UkihaUkiha, Fukuoka, Japan