Best Time to Visit Karatsu
Best time: Oct, Nov, May.
Aug is warmest (30.5°C high); Jun is rainiest (300 mm).
Karatsu weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 9.2 | 2.7 | 71 | 3.4 |
| Feb | 10.1 | 3.6 | 80 | 4.4 |
| Mar | 13.3 | 6.4 | 109 | 5.8 |
| Apr | 18.6 | 10.9 | 152 | 7.1 |
| May | 22.6 | 15 | 150 | 8 |
| Jun | 25.3 | 19.3 | 300 | 7.3 |
| Jul | 29 | 23.6 | 285 | 7.7 |
| Aug | 30.5 | 24.4 | 185 | 8.1 |
| Sep | 26.9 | 20.8 | 237 | 6.4 |
| Oct | 22.4 | 15.1 | 99 | 5.6 |
| Nov | 17.1 | 9.7 | 84 | 4.1 |
| Dec | 11.9 | 4.8 | 70 | 3.3 |
Average high temperature
Best months by activity
Overall: OctNovMay
Beaches: AugJul
Hiking: MayNov
Sightseeing: OctNovMay
Karatsu quick facts
What to pack
Cold months (Jan, Feb): warm layers and a coat.
Wet months (Mar, Apr, May, Jun, Jul, Aug, Sep, Oct): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Karatsu?
Oct, Nov, May.
What is the rainiest month?
Jun, about 300 mm.
What is the warmest month?
Aug, with average highs of 30.5°C.
Where to stay
Book Karatsu hotels · Karatsu tours & activities
All destinations · Best time to visit Tokyo · Best time to visit Kyoto · Best time to visit Fuji · Best time to visit Atsugi
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.