Skip to content
seatemperatures.net

Shana Wan Sea Temperature in August

Hokkaido, Japan

July Shana Wan year-round → September

Average sea temperature for Shana Wan, Japan across August, based on 10 years of daily readings.

Average

15.16° C

High

20.33° C

Low

11.59° 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.

August is the 2nd warmest of 12 months at Shana Wan. On average the water sits 8.3° than the year-round mean of 6.9° C.

Compared to July, August is 3.4° warmer than (11.72° C in July). By September the water is usually 15.88° C.

Shana Wan Day-by-Day Water Temperature in August

10-year low, average and high

10.0° C
13.0° C
16.0° C
19.0° C
22.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through August. Range Average

Each vertical bar above is one day of August. 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 Shana Wan.

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.

August Water Temperature Table for Shana Wan

10-year daily averages

Day Average Low High
August 1 13.94° C 11.83° C 17.75° C
August 2 14.05° C 12.33° C 16.89° C
August 3 14.21° C 12.04° C 16.8° C
August 4 14.44° C 12.67° C 16.78° C
August 5 14.48° C 12.62° C 17.55° C
August 6 14.51° C 11.93° C 18.13° C
August 7 14.85° C 12.13° C 18.24° C
August 8 14.95° C 12.37° C 18.16° C
August 9 14.68° C 12.83° C 18.06° C
August 10 14.7° C 12.39° C 18.36° C
August 11 14.98° C 12.59° C 18.34° C
August 12 14.94° C 12.27° C 18.22° C
August 13 14.98° C 11.59° C 18.3° C
August 14 15.05° C 11.61° C 18.73° C
August 15 14.92° C 11.86° C 18.26° C
August 16 14.86° C 12.31° C 18.23° C
August 17 14.91° C 12.51° C 17.98° C
August 18 15° C 12.85° C 17.72° C
August 19 15.31° C 13.12° C 17.58° C
August 20 15.46° C 13.45° C 17.99° C
August 21 15.55° C 13.57° C 18.42° C
August 22 15.71° C 13.42° C 18.78° C
August 23 15.99° C 13.28° C 19.67° C
August 24 15.78° C 13.25° C 20.33° C
August 25 15.81° C 13.28° C 20.18° C
August 26 15.9° C 13.15° C 19.87° C
August 27 16.03° C 13.9° C 19.39° C
August 28 15.84° C 13.89° C 18.37° C
August 29 15.78° C 13.15° C 18.38° C
August 30 16.01° C 13.03° C 18.66° C
August 31 16.32° C 14.07° C 18.92° C

Where August Sits in the Year

August highlighted

-4.5° C
2.4° C
9.3° C
16.1° C
23.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1.76° C
0.12° C
-0.04° C
1.42° C
3.21° C
7.27° C
11.72° C
15.16° C
15.88° C
12.92° C
8.53° C
4.85° C
10-year monthly history for Shana Wan. 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 August

Compare other Japan water for the same month

Shana Wan Location

45.2667, 147.8670

45.26670, 147.86700 View on OpenStreetMap →

Shana Wan sits at 45.2667°N, 147.8670°E, on the coast of Hokkaido, 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 Shana Wan