World Resorts Japan Tokyo Weather

Tokyo sea water temperature

Current sea water temperature:
+72.0°F
Minimum sea water temperature in October: 79.5°F
Maximum sea water temperature in October: 65.1°F
Average sea water temperature in October: 71.3°F

Sea water temperature for the last 10 days:

October 5 72.0°F September 30 75.0°F
October 4 71.8°F September 29 74.5°F
October 3 74.3°F September 28 73.8°F
October 2 73.9°F September 27 74.3°F
October 1 74.8°F September 26 74.7°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:
2026
2025
2024

The average sea water temperature in August of 2026 was 82.1°F. The highest and lowest sea temperatures during the month were 85.8°F and 78.3°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 77.9°F. The highest and lowest sea temperatures during the month were 81.7°F and 73.8°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 78.8°F. The highest and lowest sea temperatures during the month were 84.4°F and 74.3°F.

Best time for vacation in Tokyo

Sunniest months:
January 19 days
December 18 days
November 14 days
Warmest months:
August 90.5 °F
July 87.9 °F
September 82.9 °F
Warmest sea temp:
August 81.8 °F
September 78.7 °F
July 78.2 °F
Coldest months:
January 48.3 °F
February 50.0 °F
December 53.1 °F
Rainiest months:
September 7 days
June 7 days
October 5 days
Windiest months:
April 10.0 mph
May 9.3 mph
March 9.3 mph

Tokyo on a weather map

Tokyo
+68°F
S 7 mph
Feels like: +68°F
Precip.: 22%
Places in Japan:
Name
°F
+66°F
+70°F
+70°F
+66°F
+66°F
+70°F
+68°F
+66°F
+77°F
+68°F
+57°F
+68°F
+64°F
+70°F
+59°F
24 Hours Forecast
Tokyo
Local time: 22:00
October 06, tuesday
0000
68°F
S
6 mph
0300
68°F
S
5 mph
0600
68°F
S
9 mph
0900
75°F
S
12 mph
1200
81°F
S
12 mph
1500
84°F
S
12 mph
1800
77°F
S
13 mph
2100
73°F
S
15 mph
Units of measurement: °C / °F