Mild
Average highs are around 23°C, so days are mild rather than hot.
May verdict
Karatsu, Japan in May
Weather score42Mixed
Mixed for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 189mm, so showers are a real planning factor.
May weather
Monthly averages
Temp
23°C
Rain
189mm
Sun
6h
Sea
18°C
Weather score
42
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 189mm, so showers are a real planning factor.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Weather map
Compare Karatsu, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May23°C average high
May is close to Karatsu's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May189mm average rain
May sits near Karatsu's 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
May6 hours average sun
May is brighter than Karatsu's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May18°C average sea
May is below Karatsu's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
May42 weather score
May sits close to Karatsu's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsAugust to October
These months have the strongest weather score in the monthly averages.
Hotels near Karatsu, Japan
Marriott
Fairfield by Marriott Saga Ureshino OnsenUreshino, Saga, Japan
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Four Points Flex by Sheraton Fukuoka HakataFukuoka, Fukuoka, Japan
Iki Retreat by Onko Chishin, a Member of Design Hotels™Iki, Nagasaki, Japan
Nagasaki Marriott HotelNagasaki, Nagasaki, Japan
Fairfield by Marriott Fukuoka UkihaUkiha, Fukuoka, Japan