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St Helens Sea Temperature in August

Tasmania, Australia

July St Helens year-round → September

Average sea temperature for St Helens, Australia across August, based on 10 years of daily readings.

Average

13.11° C

High

14.27° C

Low

12.24° 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 11th warmest of 12 months at St Helens. On average the water sits 2.6° than the year-round mean of 15.73° C.

Compared to July, August is 0.6° cooler than (13.69° C in July). By September the water is usually 12.98° C.

St Helens Day-by-Day Water Temperature in August

10-year low, average and high

11.5° C
12.4° C
13.3° C
14.1° C
15.0° 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 St Helens.

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 St Helens

10-year daily averages

Day Average Low High
August 1 13.21° C 12.7° C 14.02° C
August 2 13.19° C 12.66° C 14.02° C
August 3 13.24° C 12.71° C 14.06° C
August 4 13.24° C 12.65° C 14.02° C
August 5 13.15° C 12.42° C 13.97° C
August 6 13.1° C 12.44° C 13.98° C
August 7 13.06° C 12.39° C 14.08° C
August 8 13.09° C 12.42° C 14.18° C
August 9 13.17° C 12.44° C 14.21° C
August 10 13.23° C 12.42° C 14.21° C
August 11 13.25° C 12.48° C 14.17° C
August 12 13.2° C 12.51° C 14.2° C
August 13 13.21° C 12.49° C 14.27° C
August 14 13.2° C 12.59° C 14.22° C
August 15 13.21° C 12.62° C 14.13° C
August 16 13.21° C 12.51° C 14.1° C
August 17 13.17° C 12.32° C 14.11° C
August 18 13.13° C 12.28° C 14.15° C
August 19 13.08° C 12.3° C 14.17° C
August 20 13.08° C 12.3° C 14.16° C
August 21 13.08° C 12.33° C 14.16° C
August 22 13.05° C 12.34° C 14.09° C
August 23 13.08° C 12.39° C 14.09° C
August 24 13.07° C 12.35° C 14.13° C
August 25 13.03° C 12.42° C 14.18° C
August 26 12.97° C 12.24° C 14.14° C
August 27 12.93° C 12.28° C 14.07° C
August 28 12.93° C 12.3° C 14.02° C
August 29 12.97° C 12.27° C 14° C
August 30 12.96° C 12.29° C 13.95° C
August 31 12.93° C 12.33° C 13.8° C

Where August Sits in the Year

August highlighted

11.0° C
13.8° C
16.5° C
19.3° C
22.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
18.1° C
18.82° C
18.62° C
17.65° C
16.2° C
14.74° C
13.69° C
13.11° C
12.98° C
13.55° C
14.92° C
16.36° C
10-year monthly history for St Helens. 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 Australia water for the same month

St Helens Location

-41.3218, 148.2498

-41.32179, 148.24981 View on OpenStreetMap →

St Helens sits at -41.3218°N, 148.2498°E, on the coast of Tasmania, Australia. 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 St Helens