Current sea water temperature:
+56.1°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 25 | 56.1°F | December 20 | 55.4°F |
| December 24 | 55.4°F | December 19 | 56.3°F |
| December 23 | 54.9°F | December 18 | 56.7°F |
| December 22 | 55.9°F | December 17 | 58.5°F |
| December 21 | 55.8°F | December 16 | 58.3°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: 02:57
December 26, friday
0300
50°F
W
3 mph
3 mph
0600
50°F
S
12 mph
12 mph
0900
48°F
SE
29 mph
29 mph
1200
48°F
SE
29 mph
29 mph
1500
45°F
S
24 mph
24 mph
1800
41°F
S
19 mph
19 mph
2100
39°F
S
16 mph
16 mph
December 27, saturday
0000
37°F
S
12 mph
12 mph
