Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Weather Guide
Suo-Oshima, Japan Average Monthly Weather
Weather score38Poor annual avg
Best months: August, September, July
Across the year, average daytime temperatures are around 19°C, sunshine averages 5.2h per day, and rainfall totals about 1621mm. Sea temperatures average 19°C across the year.
Annual weather
Annual averages
Temp
19°C
Rain
1621mm
Annual total
Sun
5.2h
Sea
19°C
Weather score
38
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 237mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.8h 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 Suo-Oshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July29°C average high
July is one of Suo-Oshima's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July237mm average rain
July is wetter than Suo-Oshima's yearly average, so flexible plans matter more.
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
July5.8 hours average sun
July is brighter than Suo-Oshima's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay 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 October
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
July53 weather score
July scores above Suo-Oshima's yearly average, so the overall weather mix is stronger than most months.
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