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Riou Bay, Alaska Sea Temperature in August

Alaska, United States

July Riou Bay, Alaska year-round → September

Average sea temperature for Riou Bay, Alaska, United States across August, based on 10 years of daily readings.

Average

13.89° C

High

16.69° C

Low

12.18° C

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

August is the 1st warmest of 12 months at Riou Bay, Alaska. On average the water sits 5.1° than the year-round mean of 8.81° C.

Compared to July, August is 0.5° warmer than (13.38° C in July). By September the water is usually 12.74° C.

Riou Bay, Alaska Day-by-Day Water Temperature in August

10-year low, average and high

11.5° C
13.0° C
14.5° C
16.0° C
17.5° 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 Riou Bay, Alaska.

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 Riou Bay, Alaska

10-year daily averages

Day Average Low High
August 1 14.08° C 13.26° C 15.19° C
August 2 14.14° C 13.24° C 15.3° C
August 3 14.01° C 13.3° C 15.3° C
August 4 14.02° C 12.98° C 15.31° C
August 5 13.95° C 12.99° C 15.32° C
August 6 13.99° C 13.09° C 15.32° C
August 7 13.98° C 12.98° C 15.33° C
August 8 14.14° C 13.11° C 15.32° C
August 9 14.16° C 12.9° C 15.57° C
August 10 14.1° C 12.67° C 15.58° C
August 11 14.12° C 12.36° C 15.8° C
August 12 13.98° C 12.18° C 15.34° C
August 13 14.03° C 12.35° C 15.18° C
August 14 14.04° C 12.94° C 15.7° C
August 15 14.11° C 13.35° C 16.38° C
August 16 14.21° C 13.32° C 16.69° C
August 17 14.15° C 13.21° C 16.45° C
August 18 13.95° C 13.12° C 15.7° C
August 19 13.9° C 12.88° C 15.7° C
August 20 13.85° C 12.99° C 15.1° C
August 21 13.61° C 12.53° C 14.32° C
August 22 13.52° C 12.76° C 14.32° C
August 23 13.57° C 13.06° C 14.02° C
August 24 13.58° C 12.77° C 14.05° C
August 25 13.68° C 12.45° C 14.52° C
August 26 13.58° C 12.56° C 14.5° C
August 27 13.62° C 12.8° C 14.53° C
August 28 13.58° C 12.75° C 14.2° C
August 29 13.67° C 12.94° C 14.19° C
August 30 13.71° C 12.86° C 14.31° C
August 31 13.68° C 12.94° C 14.35° C

Where August Sits in the Year

August highlighted

1.5° C
5.8° C
10.0° C
14.3° C
18.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
5.72° C
5.08° C
4.6° C
5.7° C
7.94° C
10.93° C
13.38° C
13.89° C
12.74° C
10.47° C
8.4° C
6.92° C
10-year monthly history for Riou Bay, Alaska. 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 United States water for the same month

Riou Bay, Alaska Location

59.8850, -141.4570

59.88500, -141.45700 View on OpenStreetMap →

Riou Bay, Alaska sits at 59.8850°N, 141.4570°W, on the coast of Alaska, United States. 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 Riou Bay, Alaska