Measurements:
°C
°F
Tokyo
62°F
NE 11 mph
Feels like: 62°F
Precip: 100%
World Resorts Japan Tokyo Weather

Tokyo Sea Water Temperature

Current Sea Water Temperature:
+59.4°F
Maximum Sea Water Temperature in April: 66.8°F
Minimum Sea Water Temperature in April: 53.8°F
Average water temperature in April: 60.5°F

Sea Water Temperature for the Last 10 Days:

April 04 59.4°F March 30 59.0°F
April 03 61.8°F March 29 57.4°F
April 02 60.6°F March 28 58.2°F
April 01 61.4°F March 27 57.4°F
March 31 60.0°F March 26 57.4°F

When is the Warmest Sea for Tokyo?

According to our data for the last three years for Tokyo the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Tokyo was 87.5°F. The maximum and minimum values were 86.0°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Tokyo was 85.1°F. The maximum and minimum values were 79.2°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Tokyo was 85.1°F. The maximum and minimum values were 79.6°F and 88.4°F respectively.

Best Time to Visit Tokyo
The most sunny months:
January 19 days
December 18 days
November 14 days
The most warm months:
August 95.3 °F
July 92.2 °F
September 87.1 °F
Warmest sea temperature:
August 85.3 °F
September 81.9 °F
July 81.3 °F
The most cold months:
January 48.1 °F
February 49.9 °F
December 53.5 °F
The most rainy months:
June 7 days
September 6 days
October 5 days
The most windy months:
April 10 mph
May 9 mph
March 9 mph

Tokyo on the Weather Map

Japan Resorts:
NAME
Atami +62
Fukuoka +54
Hakone +60
Hiroshima +52
Kamakura +64
Kobe +60
Kyoto +60
Nagasaki +58
Nagoya +62
Nara +60
Okinawa +66
Osaka +62
Sapporo +44
Tokyo +62
Yokohama +64
24 Hours Weather Forecast
Tokyo
Local time: 22:52
05 apr, sunday
0000 62°F
NE
11 mph
0300 60°F
SE
4 mph
0600 60°F
S
2 mph
0900 64°F
SW
4 mph
1200 72°F
SW
2 mph
1500 72°F
NW
5 mph
1800 70°F
N
10 mph
2100 68°F
NE
8 mph