Measurements:
°C
°F
Nagoya
80°F
NW 6 mph
Feels like: 86°F
Precip: 79%
World Resorts Japan Nagoya Weather

Nagoya Sea Water Temperature

Current Sea Water Temperature:
+84.0°F
Maximum Sea Water Temperature in September: 92.2°F
Minimum Sea Water Temperature in September: 76.2°F
Average water temperature in September: 82.9°F

Sea Water Temperature for the Last 10 Days:

September 08 84.0°F September 03 86.6°F
September 07 84.2°F September 02 86.8°F
September 06 84.4°F September 01 89.2°F
September 05 85.2°F August 31 89.6°F
September 04 86.2°F August 30 89.0°F

When is the Warmest Sea for Nagoya?

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

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 Nagoya was 88.5°F. The maximum and minimum values were 85.2°F and 91.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Nagoya was 85.1°F. The maximum and minimum values were 79.2°F and 91.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nagoya was 85.7°F. The maximum and minimum values were 78.2°F and 92.2°F respectively.

Best Time to Visit Nagoya
The most sunny months:
January 16 days
May 16 days
November 16 days
The most warm months:
August 96.0 °F
July 92.5 °F
September 87.7 °F
Warmest sea temperature:
August 87.2 °F
July 83.5 °F
September 82.9 °F
The most cold months:
January 45.6 °F
February 48.4 °F
December 50.3 °F
The most rainy months:
July 9 days
September 9 days
June 9 days
The most windy months:
February 7 mph
March 7 mph
January 7 mph

Nagoya on the Weather Map

Japan Resorts:
NAME
Atami +78
Fukuoka +76
Hakone +84
Hiroshima +74
Kamakura +84
Kobe +78
Kyoto +78
Nagasaki +80
Nagoya +80
Nara +78
Okinawa +80
Osaka +80
Sapporo +58
Tokyo +80
Yokohama +84
24 Hours Weather Forecast
Nagoya
Local time: 05:31
09 sep, wednesday
0600 80°F
NW
6 mph
0900 86°F
NW
11 mph
1200 88°F
N
11 mph
1500 86°F
NW
12 mph
1800 76°F
E
8 mph
2100 74°F
SE
7 mph
10 sep, thursday
0000 74°F
SE
6 mph
0300 72°F
SE
5 mph