Mild
Average highs are around 25°C, so days are mild rather than hot.
September verdict
Shikinejima, Japan in September
Weather score47Mixed
Mixed for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 4.3h per day, so this is not one of the brighter months. Rainfall averages 312mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
25°C
Rain
312mm
Sun
4.3h
Sea
26°C
Weather score
47
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 312mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.3h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 26°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
September25°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
September312mm average rain
September is wetter than Shikinejima's yearly average, so flexible plans matter more.
Driest monthsJanuary to February and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.3 hours average sun
September is below Shikinejima's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September26°C average sea
September 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
September47 weather score
September scores above Shikinejima's yearly average, so the overall weather mix is stronger than most months.
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