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Joetsu Sea Temperature in July

Japan

June Joetsu year-round → August

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

Average

24.97° C

High

29.02° C

Low

21.08° 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.

July is the 3rd warmest of 12 months at Joetsu. On average the water sits 6.7° than the year-round mean of 18.26° C.

Compared to June, July is 4.7° warmer than (20.28° C in June). By August the water is usually 27.67° C.

Joetsu Day-by-Day Water Temperature in July

10-year low, average and high

19.5° C
22.3° C
25.0° C
27.8° C
30.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through July. Range Average

Each vertical bar above is one day of July. 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.

July Water Temperature Table for Joetsu

10-year daily averages

Day Average Low High
July 1 22.92° C 21.08° C 24.89° C
July 2 23.07° C 21.16° C 25.45° C
July 3 23.1° C 21.23° C 25.82° C
July 4 23.05° C 21.14° C 25.82° C
July 5 23.19° C 21.59° C 25.7° C
July 6 23.15° C 21.5° C 25.38° C
July 7 23.05° C 21.44° C 25.39° C
July 8 23.23° C 21.78° C 25.59° C
July 9 23.62° C 22.2° C 25.75° C
July 10 23.92° C 22.56° C 25.86° C
July 11 24.11° C 22.81° C 25.86° C
July 12 24.19° C 22.86° C 26.44° C
July 13 24.28° C 22.77° C 26.68° C
July 14 24.37° C 22.67° C 26.87° C
July 15 24.79° C 23.07° C 26.67° C
July 16 25.12° C 23.06° C 26.77° C
July 17 25.14° C 23.32° C 26.89° C
July 18 25.29° C 23.82° C 27.26° C
July 19 25.51° C 23.87° C 27.61° C
July 20 25.71° C 23.92° C 27.83° C
July 21 25.92° C 23.98° C 27.85° C
July 22 26.02° C 23.98° C 28.23° C
July 23 26.08° C 23.9° C 28.24° C
July 24 26.29° C 23.89° C 28.53° C
July 25 26.56° C 23.96° C 28.84° C
July 26 26.82° C 24.04° C 28.87° C
July 27 26.91° C 24.11° C 28.74° C
July 28 26.88° C 24.18° C 28.73° C
July 29 27.12° C 24.71° C 28.91° C
July 30 27.23° C 24.84° C 28.89° C
July 31 27.28° C 24.87° C 29.02° C

Where July Sits in the Year

July 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 July

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