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 7.01°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.

Japan > Hakodate

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.

44.6

°F

April 15, 07:32

Trend:

increasing

Yesterday:

44.6°F

Tomorrow:

45.1°F

Sunrise:

04:58

Sunset:

18:17

Day Length:

13 h. 19 min.

Hakodate in April

Minimum:

46.3°F

Average:

49.9°F

Maximum:

51.4°F

Sea water temperature in Hakodate today

As of now, in Hakodate, the water temperature is 44.6°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 2.1°F lower 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 48.9°F on 2019, while the historical minimum was 44.6°F on 2020.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 45.5°F, with minimum temperature starting at 45.1°F, while the maximum might reach 45.8°F.

Daily water temperature in Hakodate

Date	Current Year actual* / forecast**	last year	10 years average
Apr 1	44.1°F	46.4°F	46.2°F
Apr 2	44.8°F	46.6°F	46.2°F
Apr 3	46.0°F	46.5°F	46.3°F
Apr 4	44.8°F	47.0°F	46.3°F
Apr 5	47.0°F	46.5°F	46.4°F
Apr 6	46.8°F	45.8°F	46.5°F
Apr 7	46.6°F	46.1°F	46.6°F
Apr 8	46.1°F	46.0°F	46.7°F
Apr 9	45.7°F	47.2°F	46.7°F
Apr 10	45.2°F	45.8°F	46.3°F
Apr 11	45.4°F	45.6°F	46.1°F
Apr 12	45.9°F	47.5°F	46.5°F
Apr 13	44.5°F	48.9°F	46.6°F
Apr 14	44.6°F	48.4°F	46.7°F
Apr 15	44.6°F	48.3°F	46.7°F
Apr 16	45.1°F	48.4°F	47.2°F
Apr 17	45.4°F	48.6°F	47.5°F
Apr 18	45.2°F	48.5°F	47.4°F
Apr 19	45.8°F	47.8°F	47.9°F
Apr 20	45.6°F	48.5°F	47.7°F
Apr 21	45.8°F	48.7°F	47.9°F
Apr 22	45.8°F	49.5°F	47.9°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 30, 2026, dipping to 41.5°F. The average readings by season are 49.6°F in Winter, 48.2°F in Spring, 66.8°F in Summer, and 66.0°F in Autumn.