Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Tsushima, Japan Average Monthly Weather
Weather score39Poor annual avg
Best months: August, September, October
Across the year, average daytime temperatures are around 18°C, sunshine averages 5.5h per day, and rainfall totals about 1806mm. Sea temperatures average 20°C across the year.
Annual weather
Annual averages
Temp
18°C
Rain
1806mm
Annual total
Sun
5.5h
Sea
20°C
Weather score
39
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 300mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°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
July27°C average high
July is one of Tsushima's warmest months, with daytime heat above the yearly average.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
July300mm average rain
July is one of Tsushima's wettest months, so rain is likely to be a major planning factor.
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
July5.2 hours average sun
July 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
July24°C average sea
July 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
July50 weather score
July scores above Tsushima's yearly average, so the overall weather mix is stronger than most months.
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