Average sea water temperature in December:
+74.6°F
| Minimum sea water temperature in December: | 78.6°F |
| Maximum sea water temperature in December: | 70.9°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 75.8°F. The highest and lowest sea temperatures during the month were 77.4°F and 74.5°F.
Monthly sea water temperature in Okinawa, °F
Which Japan resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Okinawa | 75.8°F | 75.3°F |
| Nagasaki | 67.5°F | 64.1°F |
| Atami | 66.5°F | 65.8°F |
| Hakone | 66.1°F | 65.7°F |
| Kamakura | 65.9°F | 65.1°F |
| Fukuoka | 63.0°F | 62.2°F |
| Hiroshima | 62.3°F | 61.6°F |
| Kobe | 61.1°F | 60.1°F |
| Yokohama | 61.0°F | 60.4°F |
| Osaka | 60.1°F | 58.7°F |
| Nagoya | 60.0°F | 60.7°F |
| Nara | 59.6°F | 58.2°F |
| Tokyo | 59.1°F | 58.4°F |
| Kyoto | 57.9°F | 56.4°F |
| Noboribetsu | 50.2°F | 50.2°F |
| Sapporo | 45.4°F | 45.2°F |
Best time for vacation in Okinawa
Okinawa on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Okinawa
Local time: 19:49
December 20, saturday
2100
68°F
NW
1 mph
1 mph
December 21, sunday
0000
68°F
N
4 mph
4 mph
0300
70°F
N
5 mph
5 mph
0600
70°F
NE
2 mph
2 mph
0900
70°F
SE
2 mph
2 mph
1200
72°F
S
7 mph
7 mph
1500
72°F
S
14 mph
14 mph
1800
68°F
S
19 mph
19 mph
