Japan — weather December, water temperature

City	Day	Night	Cloud	Rains	Precipitation	Sea	Sun
Atami	11.8 °C	7 °C	8 days	4 days	80.1 mm	18 °C	6.7 h.
Hakone	12.3 °C	7.1 °C	8 days	4 days	64 mm	17.8 °C	6.7 h.
Hiroshima	9.9 °C	4 °C	12 days	5 days	71.5 mm	16 °C	5.9 h.
Kamakura	12.7 °C	9.1 °C	9 days	3 days	50.5 mm	17.6 °C	6.6 h.
Kyoto	9.1 °C	3.6 °C	12 days	5 days	80.3 mm	14.2 °C	5 h.
Nagoya	10 °C	5.2 °C	11 days	4 days	74 mm	15.7 °C	6.4 h.
Nara	9.8 °C	4.6 °C	13 days	4 days	68.7 mm	15.1 °C	5.6 h.
Noboribetsu	0.2 °C	-2.6 °C	10 days	3 days	93.4 mm	9.5 °C	3.3 h.
Okinawa	20.1 °C	18.4 °C	11 days	7 days	152.6 mm	23.6 °C	3.8 h.
Osaka	10.4 °C	6 °C	14 days	3 days	54.5 mm	15.4 °C	5.7 h.
Sapporo	-1.5 °C	-4.9 °C	6 days	2 days	120 mm	4.7 °C	2.7 h.
Tokyo	11.8 °C	7.8 °C	8 days	3 days	42.7 mm	15.1 °C	6.8 h.
Yokohama	12.1 °C	8.8 °C	9 days	4 days	65 mm	15.6 °C	6.4 h.