Japan in May: where is it warmest?
In May, Naha, Okinawa is the warmest place with 25 °C by day, Hakodate the coolest with 14 °C. 31 of 33 destinations have good holiday weather.
All destinations in May, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Naha, Okinawa | 70 | 25° | 25° | 5 h | 15 |
| Kagoshima | 72 | 24° | 22° | 6 h | 12 |
| Okinawa | 65 | 24° | 25° | 5 h | 15 |
| Okayama | 81 | 23° | 17° | 7 h | 10 |
| Kyoto | 78 | 23° | – | 7 h | 11 |
| Nara | 78 | 23° | – | 7 h | 11 |
| Osaka | 77 | 23° | – | 7 h | 11 |
| Nagoya | 77 | 23° | – | 7 h | 11 |
| Kumamoto | 74 | 23° | 19° | 6 h | 11 |
| Hamamatsu | 73 | 23° | 19° | 6 h | 13 |
| Fukuoka | 79 | 22° | 18° | 7 h | 10 |
| Kobe | 78 | 22° | 18° | 7 h | 11 |
| Kitakyūshū | 78 | 22° | 18° | 6 h | 10 |
| Chiba | 74 | 22° | 18° | 6 h | 12 |
| Minato | 73 | 22° | 18° | 6 h | 11 |
| Tokyo | 72 | 22° | 18° | 6 h | 12 |
| Hiroshima | 80 | 21° | 17° | 7 h | 10 |
| Nagasaki | 76 | 21° | 20° | 6 h | 11 |
| Kanazawa | 76 | 21° | 16° | 7 h | 12 |
| Yokosuka | 74 | 21° | 19° | 6 h | 11 |
| Yokohama | 73 | 21° | 18° | 6 h | 11 |
| Kawasaki | 73 | 21° | 18° | 6 h | 11 |
| Nagano | 72 | 21° | – | 7 h | 14 |
| Shizuoka | 70 | 21° | 19° | 6 h | 14 |
| Niigata | 74 | 20° | 15° | 7 h | 12 |
| Kamakura | 73 | 20° | 19° | 6 h | 11 |
| Matsumoto | 71 | 20° | – | 7 h | 14 |
| Itsukushima | 33 | 20° | 17° | 7 h | 10 |
| Sendai | 76 | 19° | – | 6 h | 11 |
| Aomori | 76 | 19° | 11° | 7 h | 12 |
| Hakone | 65 | 19° | – | 6 h | 15 |
| Sapporo | 66 | 16° | – | 7 h | 11 |
| Hakodate | 55 | 14° | 11° | 6 h | 12 |
Japan in May: quick answers
Japan in May: where is it warmest?
The warmest places in May are Naha, Okinawa (25 °C), Kagoshima (24 °C) and Okinawa (24 °C).
Japan in May: where is the sea warmest?
The sea is warmest at Naha, Okinawa (25 °C), Okinawa (25 °C) and Kagoshima (22 °C).
Japan in May: where is the weather best?
The best holiday weather in May – warm, sunny and dry – is in Okayama, Hiroshima and Fukuoka.
Japan month by month
Japan: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences