All data are in degrees Fahrenheit

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Water temperature in Hekinan

Detailed information about the current water temperature in Hekinan. 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 Hekinan now

57.3

°F

December 22, 14:28

Trend:

increasing

Yesterday:

57.1°F

Tomorrow:

57.3°F

Sunrise:

06:56

Sunset:

16:45

Day Length:

9 h. 49 min.

Hekinan in December

Minimum:

52.4°F

Average:

54.9°F

Maximum:

58.8°F

Sea water temperature in Hekinan today

As of now, in Hekinan, the water temperature is 57.3°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 1.0°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 61.8°F on 2015, while the historical minimum was 56.5°F on 2023.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 57.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hekinan

Date Current Year

actual* / forecast**

last year 10 years average
Dec 8 61.7°F 59.9°F 61.2°F
Dec 9 61.5°F 59.4°F 60.9°F
Dec 10 61.3°F 59.3°F 60.7°F
Dec 11 61.3°F 60.7°F 60.7°F
Dec 12 59.5°F 60.4°F 60.3°F
Dec 13 59.4°F 59.9°F 60.0°F
Dec 14 58.9°F 59.8°F 59.6°F
Dec 15 59.2°F 59.7°F 59.6°F
Dec 16 58.7°F 59.8°F 59.4°F
Dec 17 58.0°F 59.0°F 58.9°F
Dec 18 58.2°F 58.8°F 58.9°F
Dec 19 56.3°F 59.1°F 58.5°F
Dec 20 56.5°F 58.7°F 58.2°F
Dec 21 57.1°F 57.0°F 58.1°F
Dec 22 57.3°F 56.5°F 58.4°F
Dec 23 57.3°F 56.0°F 58.4°F
Dec 24 57.3°F 56.1°F 58.3°F
Dec 25 57.3°F 56.8°F 58.3°F
Dec 26 57.3°F 56.1°F 58.3°F
Dec 27 57.0°F 56.1°F 58.0°F
Dec 28 56.9°F 56.5°F 58.0°F
Dec 29 56.6°F 56.8°F 57.6°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 Hekinan by month

In Hekinan, the months July through October offer comfortable swimming conditions, which amounts to 119 swimming days.
The warmest water in Hekinan was recorded on August 16, 2024, reaching a 87.7°F. While the coldest temperature occurred on February 16, 2018, dipping to 47.8°F. The average readings by season are 56.3°F in Winter, 60.6°F in Spring, 78.5°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Nagoya 59.1°F 21mi
Tsu 55.9°F 28mi
Hamamatsu 63.4°F 44mi

* current water temperature in this city

** straight line distance from Hekinan