All data are in degrees Fahrenheit

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Water temperature in Nagoya

Detailed information about the current water temperature in Nagoya. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Nagoya now

70.1

°F

October 31, 11:19

Trend:

decreasing

Yesterday:

70.6°F

Tomorrow:

69.9°F

Sunrise:

06:12

Sunset:

17:00

Day Length:

10 h. 48 min.

Nagoya in November

Minimum:

52.2°F

Average:

55.3°F

Maximum:

59.1°F

Sea water temperature in Nagoya today

As of now, in Nagoya, the water temperature is 70.1°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is about the same as the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 71.9°F on 2020, while the historical minimum was 68.2°F on 2015.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 69.4°F, the minimum temperature may reach 68.9°F, and the maximum might stay at 69.9°F.

Daily water temperature in Nagoya

Date Current Year

actual* / forecast**

last year 10 years average
Oct 17 74.9°F 76.7°F 73.5°F
Oct 18 74.0°F 76.1°F 73.5°F
Oct 19 74.5°F 75.8°F 73.1°F
Oct 20 75.1°F 76.2°F 72.8°F
Oct 21 74.5°F 78.3°F 72.6°F
Oct 22 73.9°F 76.5°F 72.0°F
Oct 23 73.4°F 75.7°F 71.7°F
Oct 24 71.1°F 75.3°F 71.5°F
Oct 25 70.7°F 74.7°F 71.4°F
Oct 26 70.4°F 74.2°F 70.6°F
Oct 27 71.8°F 73.5°F 70.6°F
Oct 28 71.2°F 73.0°F 70.6°F
Oct 29 71.6°F 72.6°F 70.8°F
Oct 30 70.6°F 72.2°F 70.6°F
Oct 31 70.1°F 71.0°F 70.0°F
Nov 1 69.9°F 70.8°F 69.8°F
Nov 2 69.7°F 70.7°F 69.6°F
Nov 3 69.4°F 69.0°F 69.3°F
Nov 4 69.2°F 68.3°F 69.1°F
Nov 5 69.3°F 68.4°F 69.2°F
Nov 6 68.9°F 69.2°F 68.8°F
Nov 7 69.2°F 70.6°F 69.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Nagoya by month

In Nagoya, the months July through September offer comfortable swimming conditions, which amounts to 123 swimming days.
The warmest water in Nagoya was recorded on August 22, 2025, reaching a 89.0°F. While the coldest temperature occurred on February 16, 2018, dipping to 47.6°F. The average readings by season are 56.3°F in Winter, 60.2°F in Spring, 79.1°F in Summer, and 73.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Hekinan 69.7°F 21mi
Tsu 68.3°F 38mi
Hamamatsu 71.8°F 57mi

* current water temperature in this city

** straight line distance from Nagoya