Mild
Average highs are around 21°C, so days are mild rather than hot.
May verdict
Oki Islands, Japan in May
Weather score42Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 7.1h per day, enough for a balanced month. Rainfall averages 117mm, so some wet days are possible.
May weather
Monthly averages
Temp
21°C
Rain
117mm
Sun
7.1h
Sea
17°C
Weather score
42
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 117mm, so some wet days are possible.
Some sun
Sunshine averages 7.1h per day, enough for a balanced month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Oki Islands, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May21°C average high
May is close to Oki Islands' yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
May117mm average rain
May is one of Oki Islands' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary to May, August, and October to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.1 hours average sun
May is one of Oki Islands' sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May17°C average sea
May is below Oki Islands' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
May42 weather score
May sits close to Oki Islands' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
Hotels near Oki Islands, Japan
Marriott
Fairfield by Marriott Okayama Hiruzen HighlandManiwa, Okayama, Japan
Fairfield by Marriott Okayama TsuyamaTsuyama, Okayama, Japan
Fairfield by Marriott Hyogo Kannabe HighlandToyooka, Hyogo, Japan
Fairfield by Marriott Hyogo Tajima YabuYabu, Hyogo, Japan
Fairfield by Marriott Hiroshima SeraSera, Hiroshima, Japan
Yoruya, a Member of Design Hotels™Kurashiki shi, Japan