Cool
Average highs are around 19°C, so pack for cooler days.
December verdict
Amami Islands, Japan in December
Weather score38Poor
Poor for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 2.9h per day, so this is not one of the brighter months. Rainfall averages 123mm, so some wet days are possible.
December weather
Monthly averages
Temp
19°C
Rain
123mm
Sun
2.9h
Sea
23°C
Weather score
38
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 123mm, so some wet days are possible.
Limited sun
Sunshine averages 2.9h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Amami Islands, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December19°C average high
December is on the cooler side of Amami Islands' year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December123mm average rain
December is one of Amami Islands' driest months, making outdoor days easier to plan than in wetter parts of the year.
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
December2.9 hours average sun
December is one of Amami Islands' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December23°C average sea
December is below Amami Islands' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
December38 weather score
December scores below Amami Islands' yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to October
These months have the strongest weather score in the monthly averages.
