All data are in degrees Fahrenheit

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Water temperature in Hakodate

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

55.7

°F

December 11, 01:09

Trend:

stable

Yesterday:

55.7°F

Tomorrow:

55.9°F

Sunrise:

06:54

Sunset:

16:06

Day Length:

9 h. 12 min.

Hakodate in December

Minimum:

45.1°F

Average:

49.7°F

Maximum:

51.3°F

Sea water temperature in Hakodate today

As of now, in Hakodate, the water temperature is 55.7°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 1.3°F higher than 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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 57.7°F on 2021, while the historical minimum was 48.5°F on 2016.

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 55.3°F, the minimum temperature may reach 53.9°F, and the maximum might stay at 55.9°F.

Daily water temperature in Hakodate

Date Current Year

actual* / forecast**

last year 10 years average
Nov 27 57.4°F 55.5°F 56.6°F
Nov 28 57.3°F 55.3°F 56.6°F
Nov 29 57.6°F 55.6°F 56.4°F
Nov 30 57.7°F 54.0°F 56.1°F
Dec 1 56.9°F 56.6°F 56.2°F
Dec 2 56.2°F 56.4°F 55.9°F
Dec 3 56.9°F 56.5°F 55.7°F
Dec 4 53.9°F 54.8°F 53.7°F
Dec 5 54.1°F 56.5°F 54.2°F
Dec 6 55.9°F 56.5°F 54.3°F
Dec 7 55.8°F 56.4°F 54.4°F
Dec 8 55.8°F 56.4°F 54.3°F
Dec 9 55.7°F 55.8°F 54.6°F
Dec 10 55.7°F 55.1°F 54.3°F
Dec 11 55.7°F 54.8°F 54.3°F
Dec 12 55.9°F 54.8°F 54.6°F
Dec 13 55.7°F 53.8°F 54.3°F
Dec 14 55.4°F 54.3°F 54.0°F
Dec 15 55.9°F 54.6°F 54.5°F
Dec 16 55.3°F 54.1°F 54.0°F
Dec 17 55.2°F 53.7°F 53.8°F
Dec 18 53.9°F 53.6°F 52.6°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 Hakodate by month

In Hakodate, August is the only month that offers comfortable swimming conditions. The amount of days when the water is warm enough is only 45.
The warmest water in Hakodate was recorded on September 1, 2023, reaching a 82.2°F. While the coldest temperature occurred on February 20, 2017, dipping to 42.5°F. The average readings by season are 49.5°F in Winter, 48.2°F in Spring, 66.7°F in Summer, and 65.8°F in Autumn.