Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
Amami Islands, Japan Average Monthly Weather
Weather score46Mixed annual avg
Best months: October, July, September
Across the year, average daytime temperatures are around 24°C, sunshine averages 4.6h per day, and rainfall totals about 2351mm. Sea temperatures average 25°C across the year.
Annual weather
Annual averages
Temp
24°C
Rain
2351mm
Annual total
Sun
4.6h
Sea
25°C
Weather score
46
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 241mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.1h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Amami Islands, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August30°C average high
August is one of Amami Islands' warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August241mm average rain
August sits near Amami Islands' 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
August7.1 hours average sun
August is brighter than Amami Islands' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August29°C average sea
August is one of Amami Islands' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
August55 weather score
August scores above Amami Islands' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to October
These months have the strongest weather score in the monthly averages.
