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Port Macdonnell Sea Temperature in December

South Australia, Australia

November Port Macdonnell year-round → January

Average sea temperature for Port Macdonnell, Australia across December, based on 10 years of daily readings.

Average

16.19° C

High

18.22° C

Low

14.31° 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.

December is the 6th warmest of 12 months at Port Macdonnell. On average the water sits 0.3° than the year-round mean of 15.86° C.

Compared to November, December is 1.0° warmer than (15.17° C in November). By January the water is usually 17.14° C.

Port Macdonnell Day-by-Day Water Temperature in December

10-year low, average and high

13.5° C
14.9° C
16.3° C
17.6° C
19.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through December. Range Average

Each vertical bar above is one day of December. 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 Port Macdonnell.

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.

December Water Temperature Table for Port Macdonnell

10-year daily averages

Day Average Low High
December 1 15.52° C 14.5° C 16.6° C
December 2 15.61° C 14.45° C 16.66° C
December 3 15.79° C 14.35° C 16.97° C
December 4 15.9° C 14.31° C 17.47° C
December 5 15.99° C 14.56° C 18.09° C
December 6 15.99° C 14.85° C 17.97° C
December 7 15.97° C 15.02° C 17.66° C
December 8 15.99° C 15.17° C 17.54° C
December 9 15.99° C 15.14° C 17.46° C
December 10 15.89° C 14.95° C 17.43° C
December 11 15.87° C 14.88° C 17.33° C
December 12 15.97° C 14.65° C 17.3° C
December 13 16.08° C 14.57° C 17.56° C
December 14 16.1° C 15.18° C 17.84° C
December 15 16.1° C 15.21° C 18.22° C
December 16 16.17° C 15.07° C 18.03° C
December 17 16.23° C 15.06° C 17.8° C
December 18 16.43° C 15.1° C 17.85° C
December 19 16.53° C 15.12° C 17.97° C
December 20 16.47° C 15.36° C 17.93° C
December 21 16.3° C 15.46° C 17.92° C
December 22 16.27° C 15.35° C 17.88° C
December 23 16.27° C 15.42° C 17.74° C
December 24 16.37° C 15.52° C 17.91° C
December 25 16.48° C 15.59° C 18.17° C
December 26 16.48° C 15.6° C 17.95° C
December 27 16.48° C 15.73° C 17.78° C
December 28 16.57° C 15.86° C 17.64° C
December 29 16.63° C 15.8° C 17.73° C
December 30 16.59° C 15.64° C 17.93° C
December 31 16.81° C 15.59° C 18.19° C

Where December Sits in the Year

December highlighted

10.0° C
12.8° C
15.5° C
18.3° C
21.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
17.14° C
17.53° C
17.27° C
16.76° C
16.42° C
16.07° C
14.96° C
14.36° C
14.09° C
14.37° C
15.17° C
16.19° C
10-year monthly history for Port Macdonnell. 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 December

Compare other Australia water for the same month

Port Macdonnell Location

-38.0500, 140.7000

-38.05000, 140.70000 View on OpenStreetMap →

Port Macdonnell sits at -38.0500°N, 140.7000°E, on the coast of South Australia, 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 Port Macdonnell