What is the current water temperature in Hakodate?

Q: What is the current water temperature in Hakodate?

As of now, in Hakodate, the water temperature is 7.66°C. 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.

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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.

45.8

°F

February 20, 17:04

Trend:

stable

Yesterday:

45.6°F

Tomorrow:

45.8°F

Sunrise:

06:27

Sunset:

17:16

Day Length:

10 h. 49 min.

Hakodate in February

Minimum:

45.1°F

Average:

49.7°F

Maximum:

52.6°F

Sea water temperature in Hakodate today

As of now, in Hakodate, the water temperature is 45.8°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 0.3°F higher 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 48.4°F on 2025, while the historical minimum was 42.5°F on 2017.

latest data

last year

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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 45.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hakodate

Date	Current Year actual* / forecast**	last year	10 years average
Feb 6	46.2°F	48.2°F	46.6°F
Feb 7	46.1°F	48.2°F	46.5°F
Feb 8	46.2°F	48.6°F	46.5°F
Feb 9	46.6°F	49.1°F	46.5°F
Feb 10	46.2°F	48.6°F	46.5°F
Feb 11	46.1°F	49.0°F	46.6°F
Feb 12	45.7°F	48.8°F	46.6°F
Feb 13	45.7°F	48.5°F	46.4°F
Feb 14	44.4°F	48.8°F	46.4°F
Feb 15	44.2°F	49.3°F	46.1°F
Feb 16	45.0°F	49.1°F	46.4°F
Feb 17	45.0°F	48.1°F	46.0°F
Feb 18	44.5°F	48.0°F	45.6°F
Feb 19	45.6°F	48.3°F	45.5°F
Feb 20	45.8°F	48.4°F	45.4°F
Feb 21	45.8°F	48.5°F	45.4°F
Feb 22	45.7°F	48.8°F	45.4°F
Feb 23	45.7°F	48.5°F	45.4°F
Feb 24	46.0°F	48.5°F	45.6°F
Feb 25	46.0°F	48.4°F	45.7°F
Feb 26	45.9°F	48.5°F	45.5°F
Feb 27	45.8°F	48.0°F	45.5°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 49.6°F in Winter, 48.3°F in Spring, 66.8°F in Summer, and 66.0°F in Autumn.