Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Weather Guide
Shikinejima, Japan Average Monthly Weather
Weather score33Poor annual avg
Best months: August, July, September
Across the year, average daytime temperatures are around 18°C, sunshine averages 4.8h per day, and rainfall totals about 2671mm. Sea temperatures average 21°C across the year.
Annual weather
Annual averages
Temp
18°C
Rain
2671mm
Annual total
Sun
4.8h
Sea
21°C
Weather score
33
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 218mm, so showers are a real planning factor.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Swimmable
Sea temperatures average 27°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Shikinejima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August28°C average high
August is one of Shikinejima'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
August218mm average rain
August sits near Shikinejima's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6 hours average sun
August is one of Shikinejima's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August27°C average sea
August is one of Shikinejima's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
August60 weather score
August is one of Shikinejima's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels near Shikinejima, Japan
Marriott
Izu Marriott Hotel ShuzenjiShizuoka, Japan
Fuji Marriott Hotel Lake YamanakaYamanakako, Minamitsuru-gun, Yamanashi, Japan
The Westin YokohamaYokohama, Kanagawa, Japan
Four Points Flex by Sheraton Yokohama WestYokohama, Kanagawa, Japan
Yokohama Bay Sheraton Hotel & TowersYokohama, Kanagawa, Japan
Hamamatsu Marriott HotelHamamatsu, Shizuoka, Japan