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 5.79°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.

42.4

°F

March 23, 23:57

Trend:

stable

Yesterday:

41.6°F

Tomorrow:

42.3°F

Sunrise:

05:37

Sunset:

17:52

Day Length:

12 h. 15 min.

Hakodate in March

Minimum:

46.1°F

Average:

50.1°F

Maximum:

52.1°F

Sea water temperature in Hakodate today

As of now, in Hakodate, the water temperature is 42.4°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 3.3°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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 47.1°F on 2023, while the historical minimum was 44.7°F on 2018.

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 42.4°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
Mar 9	45.5°F	47.1°F	45.6°F
Mar 10	44.6°F	46.3°F	45.3°F
Mar 11	44.5°F	45.9°F	45.4°F
Mar 12	44.7°F	45.5°F	45.3°F
Mar 13	45.5°F	46.6°F	45.4°F
Mar 14	44.5°F	46.0°F	45.2°F
Mar 15	44.9°F	46.1°F	45.2°F
Mar 16	44.1°F	45.6°F	45.3°F
Mar 17	44.5°F	45.6°F	45.3°F
Mar 18	43.1°F	45.1°F	45.3°F
Mar 19	43.3°F	45.1°F	45.5°F
Mar 20	43.9°F	45.1°F	45.6°F
Mar 21	44.2°F	45.4°F	45.5°F
Mar 22	41.6°F	45.5°F	45.6°F
Mar 23	42.4°F	45.7°F	45.7°F
Mar 24	42.3°F	44.9°F	45.6°F
Mar 25	42.0°F	44.9°F	45.3°F
Mar 26	42.3°F	46.3°F	45.6°F
Mar 27	42.8°F	46.2°F	46.1°F
Mar 28	42.5°F	45.9°F	45.8°F
Mar 29	42.6°F	46.6°F	45.9°F
Mar 30	42.5°F	46.0°F	45.9°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 March 22, 2026, dipping to 41.6°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.