Average sea water temperature in December:
+60.1°F
| Minimum sea water temperature in December: | 64.4°F |
| Maximum sea water temperature in December: | 55.0°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 59.9°F. The highest and lowest sea temperatures during the month were 64.0°F and 56.1°F.
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| Yokohama |
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| Yokohama |
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| Yokohama |
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| Yokohama |
Monthly sea water temperature in Yokohama, °F
Which Japan resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Okinawa | 75.2°F | 75.3°F |
| Nagasaki | 66.8°F | 64.1°F |
| Atami | 66.1°F | 65.8°F |
| Hakone | 65.6°F | 65.7°F |
| Kamakura | 65.4°F | 65.1°F |
| Fukuoka | 62.3°F | 62.2°F |
| Hiroshima | 61.6°F | 61.6°F |
| Kobe | 60.3°F | 60.1°F |
| Yokohama | 59.9°F | 60.4°F |
| Nagoya | 59.5°F | 60.7°F |
| Osaka | 59.2°F | 58.7°F |
| Nara | 58.7°F | 58.2°F |
| Tokyo | 57.8°F | 58.4°F |
| Kyoto | 56.9°F | 56.4°F |
| Noboribetsu | 49.3°F | 50.2°F |
| Sapporo | 44.6°F | 45.2°F |
Best time for vacation in Yokohama
Yokohama on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Yokohama
Local time: 06:01
December 30, tuesday
0900
48°F
SW
1 mph
1 mph
1200
52°F
N
5 mph
5 mph
1500
55°F
E
2 mph
2 mph
1800
54°F
S
4 mph
4 mph
2100
54°F
S
4 mph
4 mph
December 31, wednesday
0000
50°F
S
6 mph
6 mph
0300
48°F
SE
6 mph
6 mph
0600
46°F
S
9 mph
9 mph
