Japan in December: where is it warmest?
In December, Naha, Okinawa is the warmest place with 21 °C by day, Sapporo the coolest with 0 °C. 0 of 33 destinations have good holiday weather.
All destinations in December, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Naha, Okinawa | 45 | 21° | 24° | 4 h | 12 |
| Okinawa | 39 | 20° | 24° | 4 h | 12 |
| Kagoshima | 55 | 13° | 20° | 5 h | 7 |
| Hamamatsu | 55 | 12° | 19° | 6 h | 6 |
| Shizuoka | 52 | 12° | 18° | 6 h | 8 |
| Yokosuka | 51 | 12° | 18° | 6 h | 7 |
| Nagasaki | 40 | 12° | 19° | 4 h | 11 |
| Kawasaki | 49 | 11° | 16° | 6 h | 7 |
| Yokohama | 47 | 11° | 16° | 6 h | 7 |
| Nagoya | 47 | 11° | – | 6 h | 6 |
| Kamakura | 47 | 11° | 18° | 6 h | 7 |
| Minato | 46 | 11° | 16° | 6 h | 7 |
| Tokyo | 45 | 11° | 16° | 6 h | 7 |
| Hiroshima | 45 | 11° | 17° | 5 h | 7 |
| Chiba | 44 | 11° | 16° | 5 h | 8 |
| Kobe | 42 | 11° | 16° | 5 h | 8 |
| Kumamoto | 42 | 11° | 16° | 4 h | 8 |
| Okayama | 41 | 11° | 16° | 5 h | 9 |
| Fukuoka | 38 | 11° | 18° | 4 h | 9 |
| Kitakyūshū | 34 | 11° | 18° | 4 h | 10 |
| Itsukushima | 21 | 11° | 17° | 5 h | 7 |
| Osaka | 43 | 10° | – | 5 h | 6 |
| Kyoto | 42 | 10° | – | 5 h | 7 |
| Nara | 42 | 10° | – | 5 h | 7 |
| Hakone | 29 | 8° | – | 6 h | 9 |
| Kanazawa | 2 | 8° | 16° | 2 h | 22 |
| Sendai | 24 | 7° | – | 4 h | 9 |
| Niigata | 0 | 7° | 15° | 2 h | 24 |
| Nagano | 4 | 6° | – | 4 h | 24 |
| Matsumoto | 10 | 5° | – | 5 h | 17 |
| Aomori | 4 | 3° | 12° | 2 h | 16 |
| Hakodate | 15 | 2° | 13° | 3 h | 11 |
| Sapporo | 0 | 0° | – | 3 h | 22 |
Japan in December: quick answers
Japan in December: where is it warmest?
The warmest places in December are Naha, Okinawa (21 °C), Okinawa (20 °C) and Kagoshima (13 °C).
Japan in December: where is the sea warmest?
The sea is warmest at Naha, Okinawa (24 °C), Okinawa (24 °C) and Kagoshima (20 °C).
Japan in December: where is the weather best?
The best holiday weather in December – warm, sunny and dry – is in Kagoshima, Hamamatsu and Shizuoka.
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