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Port Phillip Bay Sea Temperature in May

Victoria, Australia

April Port Phillip Bay year-round → June

Average sea temperature for Port Phillip Bay, Australia across May, based on 10 years of daily readings.

Average

15.46° C

High

18.09° C

Low

13.3° 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.

May is the 7th warmest of 12 months at Port Phillip Bay. On average the water sits 0.9° than the year-round mean of 16.33° C.

Compared to April, May is 2.7° cooler than (18.13° C in April). By June the water is usually 12.83° C.

Port Phillip Bay Day-by-Day Water Temperature in May

10-year low, average and high

12.5° C
14.1° C
15.8° C
17.4° 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 May. Range Average

Each vertical bar above is one day of May. 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 Phillip Bay.

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.

May Water Temperature Table for Port Phillip Bay

10-year daily averages

Day Average Low High
May 1 17.05° C 16.22° C 18.09° C
May 2 16.92° C 15.99° C 18.02° C
May 3 16.82° C 15.84° C 17.99° C
May 4 16.65° C 15.79° C 17.78° C
May 5 16.57° C 15.74° C 17.7° C
May 6 16.37° C 15.6° C 17.61° C
May 7 16.27° C 15.19° C 17.46° C
May 8 16.13° C 14.94° C 17.27° C
May 9 15.97° C 14.41° C 17.08° C
May 10 15.82° C 14.21° C 16.99° C
May 11 15.74° C 14.25° C 16.89° C
May 12 15.74° C 14.41° C 16.84° C
May 13 15.66° C 14.43° C 16.85° C
May 14 15.55° C 14.22° C 16.81° C
May 15 15.42° C 14° C 16.76° C
May 16 15.33° C 13.94° C 16.71° C
May 17 15.3° C 13.77° C 16.58° C
May 18 15.19° C 13.84° C 16.42° C
May 19 15.1° C 13.93° C 16.19° C
May 20 15.05° C 13.91° C 15.9° C
May 21 14.97° C 13.77° C 15.86° C
May 22 14.91° C 13.86° C 15.59° C
May 23 14.76° C 13.52° C 15.56° C
May 24 14.66° C 13.3° C 15.48° C
May 25 14.63° C 13.51° C 15.37° C
May 26 14.53° C 13.44° C 15.28° C
May 27 14.4° C 13.48° C 15.11° C
May 28 14.31° C 13.4° C 14.88° C
May 29 14.22° C 13.33° C 14.77° C
May 30 14.1° C 13.38° C 14.68° C
May 31 14.07° C 13.48° C 14.59° C

Where May Sits in the Year

May highlighted

8.0° C
12.5° C
17.0° C
21.5° C
26.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
21.48° C
21.5° C
20.61° C
18.13° C
15.46° C
12.83° C
11.2° C
11.16° C
12.37° C
14.76° C
17.09° C
19.43° C
10-year monthly history for Port Phillip Bay. 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 May

Compare other Australia water for the same month

Port Phillip Bay Location

-38.1732, 144.8731

-38.17321, 144.87312 View on OpenStreetMap →

Port Phillip Bay sits at -38.1732°N, 144.8731°E, on the coast of Victoria, 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 Phillip Bay