Average sea water temperature in December:
+64.6°F
| Minimum sea water temperature in December: | 70.5°F |
| Maximum sea water temperature in December: | 58.3°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 66.1°F. The highest and lowest sea temperatures during the month were 70.5°F and 64.2°F.
Monthly sea water temperature in Atami, °F
Which Japan resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Okinawa | 75.3°F | 75.3°F |
| Nagasaki | 66.9°F | 64.1°F |
| Atami | 66.1°F | 65.8°F |
| Hakone | 65.7°F | 65.7°F |
| Kamakura | 65.4°F | 65.1°F |
| Fukuoka | 62.4°F | 62.2°F |
| Hiroshima | 61.6°F | 61.6°F |
| Kobe | 60.4°F | 60.1°F |
| Yokohama | 60.0°F | 60.4°F |
| Nagoya | 59.5°F | 60.7°F |
| Osaka | 59.3°F | 58.7°F |
| Nara | 58.8°F | 58.2°F |
| Tokyo | 58.0°F | 58.4°F |
| Kyoto | 57.0°F | 56.4°F |
| Noboribetsu | 49.4°F | 50.2°F |
| Sapporo | 44.7°F | 45.2°F |
Best time for vacation in Atami
Atami on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Atami
Local time: 08:54
December 29, monday
0900
48°F
E
3 mph
3 mph
1200
54°F
NE
9 mph
9 mph
1500
52°F
NE
11 mph
11 mph
1800
46°F
NE
12 mph
12 mph
2100
46°F
NE
14 mph
14 mph
December 30, tuesday
0000
46°F
E
13 mph
13 mph
0300
45°F
E
8 mph
8 mph
0600
43°F
E
4 mph
4 mph
