Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
May verdict
Ishigaki, Japan in May
Weather score54Mixed
Mixed for holiday weather
Average highs sit around 28°C, giving warm days by monthly-average standards. Sunshine averages 4.8h per day, so this is not one of the brighter months. Rainfall averages 215mm, so showers are a real planning factor.
May weather
Monthly averages
Temp
28°C
Rain
215mm
Sun
4.8h
Sea
26°C
Weather score
54
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 215mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.8h 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 Ishigaki, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May28°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May215mm average rain
May is wetter than Ishigaki's yearly average, so flexible plans matter more.
Driest monthsJanuary to April, July, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May4.8 hours average sun
May sits close to Ishigaki's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May26°C average sea
May is close to Ishigaki's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
May54 weather score
May scores above Ishigaki's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to November
These months have the strongest weather score in the monthly averages.
