Mild
Average highs are around 22°C, so days are mild rather than hot.
December verdict
Ishigaki, Japan in December
Weather score46Mixed
Mixed for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 2.9h per day, so this is not one of the brighter months. Rainfall averages 145mm, so some wet days are possible.
December weather
Monthly averages
Temp
22°C
Rain
145mm
Sun
2.9h
Sea
25°C
Weather score
46
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 145mm, 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 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Ishigaki, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December22°C average high
December is on the cooler side of Ishigaki's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December145mm average rain
December sits on the drier side of Ishigaki's year, which helps with sightseeing and transfers.
Driest monthsJanuary to April, July, and 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 Ishigaki's 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
December25°C average sea
December is below Ishigaki's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJune to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
December46 weather score
December scores below Ishigaki's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsApril to November
These months have the strongest weather score in the monthly averages.
