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Joetsu Sea Temperature in June

Japan

May Joetsu year-round → July

Average sea temperature for Joetsu, Japan across June, based on 10 years of daily readings.

Average

20.28° C

High

24.15° C

Low

16.49° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

June is the 5th warmest of 12 months at Joetsu. On average the water sits 2.0° than the year-round mean of 18.26° C.

Compared to May, June is 4.7° warmer than (15.55° C in May). By July the water is usually 24.97° C.

Joetsu Day-by-Day Water Temperature in June

10-year low, average and high

15.0° C
17.6° C
20.3° C
22.9° C
25.5° C
1
5
10
15
20
25
30
Day-by-day low and high band with the 10-year daily average through June. Range Average

Each vertical bar above is one day of June. 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 Joetsu.

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.

June Water Temperature Table for Joetsu

10-year daily averages

Day Average Low High
June 1 17.87° C 16.49° C 18.56° C
June 2 17.94° C 16.92° C 18.62° C
June 3 18.17° C 16.88° C 19.3° C
June 4 18.38° C 17.17° C 19.72° C
June 5 18.61° C 17.45° C 19.83° C
June 6 19° C 17.81° C 20.44° C
June 7 19.29° C 17.84° C 20.51° C
June 8 19.4° C 18.02° C 20.64° C
June 9 19.62° C 18.23° C 21.01° C
June 10 19.81° C 17.89° C 21.15° C
June 11 19.99° C 18° C 21.23° C
June 12 20° C 18.08° C 21.53° C
June 13 19.86° C 18.17° C 21.9° C
June 14 19.92° C 18.09° C 22.18° C
June 15 20.22° C 18.17° C 22.47° C
June 16 20.27° C 18.52° C 22.32° C
June 17 20.27° C 18.68° C 22.01° C
June 18 20.6° C 19.1° C 21.75° C
June 19 20.94° C 19.25° C 21.98° C
June 20 20.99° C 19.27° C 22.38° C
June 21 21.09° C 19.37° C 22.97° C
June 22 21.34° C 20.02° C 22.75° C
June 23 21.47° C 19.91° C 22.75° C
June 24 21.54° C 19.87° C 22.66° C
June 25 21.61° C 19.81° C 22.56° C
June 26 21.58° C 19.88° C 22.52° C
June 27 21.85° C 20.41° C 22.88° C
June 28 22.06° C 20.45° C 23.42° C
June 29 22.31° C 20.72° C 23.35° C
June 30 22.52° C 20.91° C 24.15° C

Where June Sits in the Year

June highlighted

7.0° C
13.4° C
19.8° C
26.1° C
32.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
13.07° C
11.29° C
10.63° C
12.01° C
15.55° C
20.28° C
24.97° C
27.67° C
26.2° C
22.65° C
18.87° C
15.88° C
10-year monthly history for Joetsu. 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 June

Compare other Japan water for the same month

Joetsu Location

37.1479, 138.2361

37.14790, 138.23613 View on OpenStreetMap →

Joetsu sits at 37.1479°N, 138.2361°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 Joetsu