Current sea water temperature:
+55.4°F
| Minimum sea water temperature in December: | 63.5°F |
| Maximum sea water temperature in December: | 52.3°F |
| Average sea water temperature in December: | 59.0°F |
| more information | |
14 days
forecast
forecast
| Tokyo |
monthly
weather
weather
| Tokyo |
Sea water temperature for the last 10 days:
| December 20 | 55.4°F | December 15 | 57.4°F |
| December 19 | 56.3°F | December 14 | 58.5°F |
| December 18 | 56.7°F | December 13 | 58.5°F |
| December 17 | 58.5°F | December 12 | 60.3°F |
| December 16 | 58.3°F | December 11 | 59.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Tokyo?
Based on the data about daily sea water temperature for the last three years the warmest sea in Tokyo was noticed in August, September and July.
Monthly Sea Temperatures in Tokyo, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 83.7°F. The highest and lowest sea temperatures during the month were 86.0°F and 82.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 85.8°F and 76.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 84.6°F and 76.6°F.
current
weather
weather
| Tokyo |
weather in
December
December
| Tokyo |
Best time for vacation in Tokyo
Tokyo on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Tokyo
Local time: 19:52
December 20, saturday
2100
55°F
N
6 mph
6 mph
December 21, sunday
0000
55°F
NE
3 mph
3 mph
0300
55°F
N
4 mph
4 mph
0600
54°F
N
3 mph
3 mph
0900
55°F
E
3 mph
3 mph
1200
55°F
NE
4 mph
4 mph
1500
63°F
NE
12 mph
12 mph
1800
59°F
NE
5 mph
5 mph
