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

57.1

°F

April 2, 17:16

Trend:

stable

Yesterday:

57.2°F

Tomorrow:

57.1°F

Sunrise:

05:39

Sunset:

18:14

Day Length:

12 h. 35 min.

Nagoya in April

Minimum:

53.9°F

Average:

56.1°F

Maximum:

60.6°F

Sea water temperature in Nagoya today

As of now, in Nagoya, the water temperature is 57.1°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 61.2°F on 2021, while the historical minimum was 52.6°F on 2022.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 57.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Nagoya

Date Current Year

actual* / forecast**

last year 10 years average
Mar 19 52.4°F 50.6°F 54.2°F
Mar 20 50.7°F 51.1°F 54.3°F
Mar 21 50.5°F 51.5°F 54.5°F
Mar 22 50.4°F 52.3°F 54.8°F
Mar 23 51.8°F 52.3°F 55.3°F
Mar 24 51.7°F 52.9°F 54.8°F
Mar 25 52.1°F 54.5°F 55.2°F
Mar 26 52.7°F 54.1°F 55.6°F
Mar 27 53.8°F 55.3°F 56.1°F
Mar 28 54.7°F 55.4°F 56.4°F
Mar 29 55.0°F 55.6°F 56.5°F
Mar 30 55.7°F 55.7°F 56.8°F
Mar 31 57.1°F 55.9°F 56.9°F
Apr 1 57.2°F 55.9°F 57.0°F
Apr 2 57.1°F 55.8°F 57.0°F
Apr 3 57.1°F 56.1°F 57.1°F
Apr 4 56.6°F 52.0°F 56.6°F
Apr 5 57.0°F 52.5°F 56.9°F
Apr 6 57.2°F 53.1°F 57.2°F
Apr 7 57.5°F 53.8°F 57.4°F
Apr 8 58.0°F 54.4°F 57.9°F
Apr 9 58.1°F 56.3°F 58.1°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 October offer comfortable swimming conditions, which amounts to 124 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 22, 2026, dipping to 46.9°F. The average readings by season are 55.8°F in Winter, 59.9°F in Spring, 79.3°F in Summer, and 73.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Hekinan 60.5°F 21mi
Tsu 56.7°F 38mi
Hamamatsu 60.0°F 57mi

* current water temperature in this city

** straight line distance from Nagoya