Measurements:
°C
°F
Tokyo
82°F
NE 4 mph
Feels like: 82°F
Precip: 12%
World Resorts Japan Tokyo Weather

Tokyo Sea Water Temperature

Current Sea Water Temperature:
+73.8°F
Maximum Sea Water Temperature in October: 82.8°F
Minimum Sea Water Temperature in October: 66.8°F
Average water temperature in October: 73.7°F

Sea Water Temperature for the Last 10 Days:

October 19 73.8°F October 14 74.0°F
October 18 73.2°F October 13 74.4°F
October 17 74.2°F October 12 74.6°F
October 16 74.0°F October 11 74.4°F
October 15 74.2°F October 10 74.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Tokyo was 85.6°F. The maximum and minimum values were 81.4°F and 89.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Tokyo was 81.0°F. The maximum and minimum values were 76.4°F and 85.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Tokyo was 82.0°F. The maximum and minimum values were 77.0°F and 88.2°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 95.0 °F
July 92.2 °F
September 86.6 °F
Warmest sea temperature:
August 85.3 °F
September 81.8 °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:
September 7 days
June 7 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
F°
Atami +70
Fukuoka +76
Hakone +76
Hiroshima +68
Kamakura +78
Kobe +76
Kyoto +74
Nagasaki +78
Nagoya +78
Nara +76
Okinawa +80
Osaka +78
Sapporo +56
Tokyo +82
Yokohama +78
24 Hours Weather Forecast
Tokyo
Local time: 18:03
19 oct, monday
2100 78°F
S
5 mph
20 oct, tuesday
0000 76°F
SE
2 mph
0300 74°F
SE
2 mph
0600 74°F
E
1 mph
0900 76°F
NE
2 mph
1200 80°F
S
7 mph
1500 82°F
SW
6 mph
1800 76°F
W
13 mph