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 18.47°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

65.2

°F

October 20, 04:02

Trend:

stable

Yesterday:

65.1°F

Tomorrow:

64.9°F

Sunrise:

05:54

Sunset:

16:49

Day Length:

10 h. 55 min.

Hakodate in October

Minimum:

46.2°F

Average:

50.2°F

Maximum:

51.9°F

Sea water temperature in Hakodate today

As of now, in Hakodate, the water temperature is 65.2°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is about the same as 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 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 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 66.9°F on 2018, while the historical minimum was 64.3°F on 2016.

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 shows a gradual cooling trend. The average temperature is expected to be 64.0°F, the minimum temperature may reach 63.0°F, and the maximum might stay at 64.9°F.

Daily water temperature in Hakodate

Date	Current Year actual* / forecast**	last year	10 years average
Oct 6	67.5°F	71.7°F	69.5°F
Oct 7	67.2°F	72.3°F	69.3°F
Oct 8	67.2°F	72.3°F	68.8°F
Oct 9	65.7°F	71.7°F	68.0°F
Oct 10	65.6°F	72.2°F	68.1°F
Oct 11	66.4°F	71.5°F	68.1°F
Oct 12	66.8°F	71.1°F	67.7°F
Oct 13	67.0°F	70.4°F	67.2°F
Oct 14	67.1°F	68.5°F	67.0°F
Oct 15	67.6°F	67.6°F	66.9°F
Oct 16	66.7°F	67.2°F	66.3°F
Oct 17	66.5°F	67.3°F	65.9°F
Oct 18	64.4°F	67.1°F	65.6°F
Oct 19	65.1°F	67.0°F	65.2°F
Oct 20	65.2°F	66.7°F	65.3°F
Oct 21	64.9°F	67.5°F	65.0°F
Oct 22	64.7°F	67.1°F	64.7°F
Oct 23	64.4°F	66.7°F	64.5°F
Oct 24	64.3°F	66.4°F	64.4°F
Oct 25	63.6°F	65.6°F	63.7°F
Oct 26	63.4°F	66.0°F	63.5°F
Oct 27	63.0°F	64.5°F	63.1°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, 66.9°F in Summer, and 65.9°F in Autumn.