Japan in April: where is it warmest?
In April, Naha, Okinawa is the warmest place with 23 °C by day, Sapporo the coolest with 10 °C. 22 of 33 destinations have good holiday weather.
All destinations in April, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Naha, Okinawa | 53 | 23° | 23° | 4 h | 12 |
| Okinawa | 47 | 22° | 23° | 4 h | 12 |
| Kagoshima | 73 | 20° | 19° | 6 h | 12 |
| Hamamatsu | 76 | 19° | 17° | 7 h | 12 |
| Kumamoto | 74 | 19° | 16° | 6 h | 11 |
| Nagoya | 79 | 18° | – | 7 h | 10 |
| Okayama | 79 | 18° | 14° | 7 h | 10 |
| Kyoto | 78 | 18° | – | 6 h | 10 |
| Osaka | 78 | 18° | – | 6 h | 10 |
| Nara | 78 | 18° | – | 6 h | 10 |
| Fukuoka | 75 | 18° | 16° | 6 h | 11 |
| Kitakyūshū | 75 | 18° | 16° | 6 h | 11 |
| Nagasaki | 71 | 18° | 17° | 6 h | 11 |
| Chiba | 70 | 18° | 15° | 6 h | 12 |
| Minato | 70 | 18° | 15° | 6 h | 12 |
| Kobe | 74 | 17° | 15° | 7 h | 11 |
| Hiroshima | 72 | 17° | 14° | 6 h | 10 |
| Tokyo | 70 | 17° | 15° | 6 h | 12 |
| Kawasaki | 68 | 17° | 15° | 6 h | 12 |
| Yokosuka | 68 | 17° | 17° | 6 h | 12 |
| Shizuoka | 67 | 17° | 17° | 7 h | 14 |
| Yokohama | 66 | 17° | 16° | 6 h | 12 |
| Itsukushima | 23 | 17° | 14° | 6 h | 10 |
| Kamakura | 65 | 16° | 17° | 6 h | 12 |
| Kanazawa | 64 | 16° | 12° | 6 h | 12 |
| Nagano | 56 | 16° | – | 7 h | 15 |
| Matsumoto | 53 | 15° | – | 7 h | 14 |
| Niigata | 52 | 15° | 11° | 6 h | 14 |
| Sendai | 57 | 14° | – | 7 h | 11 |
| Hakone | 53 | 14° | – | 6 h | 14 |
| Aomori | 47 | 13° | 8° | 6 h | 12 |
| Hakodate | 35 | 10° | 9° | 6 h | 10 |
| Sapporo | 34 | 10° | – | 6 h | 11 |
Japan in April: quick answers
Japan in April: where is it warmest?
The warmest places in April are Naha, Okinawa (23 °C), Okinawa (22 °C) and Kagoshima (20 °C).
Japan in April: where is the sea warmest?
The sea is warmest at Naha, Okinawa (23 °C), Okinawa (23 °C) and Kagoshima (19 °C).
Japan in April: where is the weather best?
The best holiday weather in April – warm, sunny and dry – is in Nagoya, Okayama and Kyoto.
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