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Warmest sea in Australia in May

954 coastal locations in Australia ranked by their typical May sea temperature. Region-wide average in May: 22.8°C. The top of the list is where to find the warmest swimming this month.

Warmest in May

Degerando Island

29.4°C May mean in Australia

Regional May average

22.8°C

across all 954 coastal locations in Australia

Vs annual mean

-0.1°C

below the year-round regional average

What the Australia sea feels like in May

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

Australia monthly average 20.0°C to 25.5°C
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  • Warmest month February 25.5°C
  • Coldest month August 20.0°C
  • Annual mean 22.9°C
  • Months above 20°C 12 of 12

Where May fits in the year

May sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Australia month rankings:

Australia sea temperature map (live)

The map shows today's latest reading at every Australia location. The list below is based on the typical May mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Australia locations in May

Sorted by the typical May mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location May mean
1 Degerando Island Western Australia 29.4°C
2 Macleay Island Western Australia 29.4°C
3 White Island Western Australia 29.4°C
4 Yampi Sound (Koolan Island) Western Australia 29.3°C
5 Hall Point Western Australia 29.3°C
6 Point Fawcett (Offshore) Northern Territory 29.2°C
7 Calder Shoal Northern Territory 29.2°C
8 Newby Shoal Northern Territory 29.2°C
9 Bedford Islands Western Australia 29.2°C
10 Cape Van Dieman Northern Territory 29.2°C
11 Lizard Island Western Australia 29.2°C
12 St. Asaph Bay Northern Territory 29.2°C
13 The Boxers Northern Territory 29.2°C
14 Beagle A Northern Territory 29.1°C
15 Goodrich Bank Northern Territory 29.1°C
16 Adele Island Western Australia 29.1°C
17 Point Jahleel (Off) Northern Territory 29.1°C
18 Scott Reef (Wa) Western Australia 29.1°C
19 Snake Bay Northern Territory 29.1°C
20 Unnamed Shoal Northern Territory 29.1°C
21 Maret Island Western Australia 29.1°C
22 Munkunuwa Northern Territory 29.1°C
23 Evans Shoal Northern Territory 29.1°C
24 Cache Point Northern Territory 29.0°C
25 Cape Don Northern Territory 29.0°C
Show 25 more ▸
26 Christine Reef Northern Territory 29.0°C
27 Camp Point Northern Territory 29.0°C
28 Christmas Island Territory of Christmas Island 29.0°C
29 Shale Island Western Australia 29.0°C
30 Browse Island Western Australia 29.0°C
31 Echo Shoal Western Australia 29.0°C
32 Loxton Shoal Northern Territory 29.0°C
33 Lynedoch Bank Northern Territory 29.0°C
34 Medina Inlet South Northern Territory 29.0°C
35 Dillon Shoal Western Australia 28.9°C
36 Jabiru Northern Territory 28.9°C
37 Pee Shoal Western Australia 28.9°C
38 Two Hills Bay Northern Territory 28.9°C
39 Van Cloon Shoal Western Australia 28.9°C
40 Money Shoal Northern Territory 28.9°C
41 Fish Reef Northern Territory 28.9°C
42 Karrakatta Bay Western Australia 28.9°C
43 Skua No. 4 Well Western Australia 28.9°C
44 Sunday Island Western Australia 28.9°C
45 Lynher Bank Western Australia 28.9°C
46 Darwin Northern Territory 28.9°C
47 Fannie Bay Northern Territory 28.9°C
48 Larrakeyah Northern Territory 28.9°C
49 Nightcliff Northern Territory 28.9°C
50 Parap Northern Territory 28.9°C

Coldest 10 in Australia in May

Same data the other way. Helpful if you want to know which Australia coasts to avoid for swimming in May.

# Location May mean
1 Heard Island Australian external territory 3.1°C
2 Macquarie Island Tasmania 5.7°C
3 Austins Ferry Tasmania 14.3°C
4 Bellerive Tasmania 14.3°C
5 Berriedale Tasmania 14.3°C
6 Blackmans Bay Tasmania 14.3°C
7 Bridgewater Tasmania 14.3°C
8 Glenorchy Tasmania 14.3°C
9 Goodwood Tasmania 14.3°C
10 Hobart Tasmania 14.3°C

More on this region