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Heda Sea Temperature in March

Japan

February Heda year-round → April

Average sea temperature for Heda, Japan across March, based on 10 years of daily readings.

Average

17.1° C

High

19.57° C

Low

14.39° C

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

March is the 11th warmest of 12 months at Heda. On average the water sits 4.6° than the year-round mean of 21.73° C.

Compared to February, March is 0.0° about the same as (17.07° C in February). By April the water is usually 18.05° C.

Heda Day-by-Day Water Temperature in March

10-year low, average and high

13.5° C
15.3° C
17.0° C
18.8° C
20.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through March. Range Average

Each vertical bar above is one day of March. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Heda.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

March Water Temperature Table for Heda

10-year daily averages

Day Average Low High
March 1 17.03° C 15.24° C 19.43° C
March 2 17.06° C 15.11° C 19.17° C
March 3 17.02° C 14.94° C 18.81° C
March 4 16.91° C 14.86° C 18.64° C
March 5 16.88° C 14.77° C 18.81° C
March 6 16.83° C 14.49° C 18.81° C
March 7 16.85° C 14.49° C 18.82° C
March 8 16.74° C 14.49° C 18.66° C
March 9 16.86° C 14.39° C 19.1° C
March 10 16.97° C 14.75° C 19.11° C
March 11 16.99° C 14.8° C 18.75° C
March 12 17.04° C 14.98° C 18.41° C
March 13 17.08° C 15.19° C 18.53° C
March 14 17.05° C 14.98° C 18.44° C
March 15 17.18° C 14.92° C 18.79° C
March 16 17.26° C 15.17° C 19.06° C
March 17 17.19° C 15.38° C 18.78° C
March 18 17.23° C 15.42° C 18.57° C
March 19 17.23° C 15.45° C 18.57° C
March 20 17.19° C 15.42° C 18.85° C
March 21 17.12° C 15.15° C 19.18° C
March 22 17.06° C 15.21° C 19.06° C
March 23 17.01° C 14.92° C 18.77° C
March 24 16.99° C 14.59° C 19.32° C
March 25 17.14° C 14.74° C 19.28° C
March 26 17.31° C 15.47° C 19.28° C
March 27 17.39° C 15.7° C 19.27° C
March 28 17.33° C 15.66° C 19.36° C
March 29 17.36° C 15.73° C 19.05° C
March 30 17.32° C 15.76° C 18.93° C
March 31 17.36° C 15.82° C 19.57° C

Where March Sits in the Year

March highlighted

12.0° C
17.1° C
22.3° C
27.4° C
32.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
18.04° C
17.07° C
17.1° C
18.05° C
19.97° C
22.8° C
25.58° C
27.57° C
27.15° C
24.89° C
22.6° C
19.91° C
10-year monthly history for Heda. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in March

Compare other Japan water for the same month

Heda Location

34.9657, 138.7945

34.96566, 138.79449 View on OpenStreetMap →

Heda sits at 34.9657°N, 138.7945°E, on the coast of Japan. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Heda