Your holiday weather, at a glance

Japan in January: where is it warmest?

In January, Naha, Okinawa is the warmest place with 19 °C by day, Sapporo the coolest with −3 °C. 0 of 33 destinations have good holiday weather.

All destinations in January, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

Place	Score	Air	Sea	Sun	Rain days
Naha, Okinawa	30	19°	23°	3 h	11
Okinawa	29	18°	22°	3 h	11
Kagoshima	41	11°	19°	4 h	9
Hamamatsu	44	10°	17°	6 h	6
Shizuoka	41	10°	16°	7 h	8
Nagasaki	26	10°	17°	3 h	11
Yokosuka	42	9°	16°	6 h	7
Kamakura	39	9°	16°	6 h	7
Kawasaki	39	9°	13°	6 h	7
Yokohama	38	9°	14°	6 h	7
Chiba	36	9°	13°	6 h	8
Hiroshima	35	9°	14°	5 h	6
Okayama	29	9°	13°	5 h	10
Kumamoto	29	9°	14°	4 h	8
Fukuoka	23	9°	15°	3 h	10
Itsukushima	22	9°	14°	5 h	6
Tokyo	37	8°	13°	6 h	6
Minato	37	8°	13°	6 h	7
Nagoya	36	8°	–	6 h	6
Osaka	31	8°	–	5 h	6
Kyoto	30	8°	–	5 h	7
Kobe	30	8°	14°	5 h	8
Nara	30	8°	–	5 h	7
Kitakyūshū	22	8°	15°	4 h	10
Hakone	30	5°	–	6 h	9
Kanazawa	0	5°	13°	2 h	23
Sendai	26	4°	–	5 h	9
Niigata	0	4°	12°	2 h	25
Nagano	4	3°	–	4 h	26
Matsumoto	10	2°	–	5 h	17
Hakodate	19	0°	10°	3 h	10
Aomori	8	0°	10°	2 h	14
Sapporo	0	−3°	–	3 h	20

Japan in January: where is it warmest?

The warmest places in January are Naha, Okinawa (19 °C), Okinawa (18 °C) and Kagoshima (11 °C).

Japan in January: where is the sea warmest?

The sea is warmest at Naha, Okinawa (23 °C), Okinawa (22 °C) and Kagoshima (19 °C).

Japan in January: where is the weather best?

The best holiday weather in January – warm, sunny and dry – is in Hamamatsu, Yokosuka and Kagoshima.

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