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Warmest sea in Australia and Oceania in April

1,649 coastal locations in Australia and Oceania ranked by their typical April sea temperature. Region-wide average in April: 24.7°C. The top of the list is where to find the warmest swimming this month.

Warmest in April

Shale Island

30.7°C April mean in Australia

Regional April average

24.7°C

across all 1,649 coastal locations in Australia and Oceania

Vs annual mean

+1.2°C

above the year-round regional average

What the Australia and Oceania sea feels like in April

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 and Oceania monthly average 21.3°C to 25.5°C
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  • Warmest month February 25.5°C
  • Coldest month August 21.3°C
  • Annual mean 23.5°C
  • Months above 20°C 12 of 12

Where April fits in the year

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

All twelve Australia and Oceania month rankings:

Australia and Oceania sea temperature map (live)

The map shows today's latest reading at every Australia and Oceania location. The list below is based on the typical April 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 and Oceania locations in April

Sorted by the typical April 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 April mean
1 Shale Island Western Australia 30.7°C
2 Lizard Island Western Australia 30.6°C
3 Hall Point Western Australia 30.4°C
4 Yampi Sound (Koolan Island) Western Australia 30.4°C
5 Jones Point Northern Territory 30.4°C
6 Port Keats Northern Territory 30.4°C
7 Catfish Island Northern Territory 30.3°C
8 Bedford Islands Western Australia 30.3°C
9 Cape Scott Offshore Northern Territory 30.3°C
10 Macleay Island Western Australia 30.3°C
11 Quoin Island Northern Territory 30.3°C
12 Chambers Bay Northern Territory 30.3°C
13 Point Stuart Northern Territory 30.3°C
14 Anson Bay Northern Territory 30.3°C
15 Cape Ford Northern Territory 30.3°C
16 Karrakatta Bay Western Australia 30.3°C
17 Peron Island North Northern Territory 30.3°C
18 Port Usborne Western Australia 30.3°C
19 Sunday Island Western Australia 30.3°C
20 Point Jenny Northern Territory 30.3°C
21 Cape Hotham Northern Territory 30.3°C
22 Pelican Island Western Australia 30.3°C
23 Adolphus Island Western Australia 30.2°C
24 Lacrosse Island Western Australia 30.2°C
25 Native Point Northern Territory 30.2°C
Show 25 more ▸
26 Burge Point Northern Territory 30.2°C
27 Cape Domett Western Australia 30.2°C
28 Degerando Island Western Australia 30.2°C
29 East Field Island Northern Territory 30.2°C
30 Glyde Point Northern Territory 30.2°C
31 West Alligator Head Northern Territory 30.2°C
32 Marovo Lagoon (Karunohu Island) Western Province 30.2°C
33 Monggo Passage Western Province 30.2°C
34 Camp Point Northern Territory 30.2°C
35 Fish Reef Northern Territory 30.2°C
36 Reveley Island Western Australia 30.2°C
37 Tapa Bay Northern Territory 30.2°C
38 Lolomo Passage Western Province 30.2°C
39 Munda (Nasa Zonga Island) Western Province 30.2°C
40 Rendova Island Western Province 30.2°C
41 Roviana Lagoon (Mbaraulu) Western Province 30.2°C
42 Yandina Central Province 30.2°C
43 Darwin Northern Territory 30.2°C
44 Fannie Bay Northern Territory 30.2°C
45 Larrakeyah Northern Territory 30.2°C
46 Nightcliff Northern Territory 30.2°C
47 Parap Northern Territory 30.2°C
48 Stuart Park Northern Territory 30.2°C
49 Hancox Shoal Area Northern Territory 30.1°C
50 Two Hills Bay Northern Territory 30.1°C

Coldest 10 in Australia and Oceania in April

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

# Location April mean
1 Heard Island Australian external territory 3.6°C
2 Macquarie Island Tasmania 6.3°C
3 Campbell Island/Motu Ihupuku - Perseverance Harbour New Zealand Outlying Islands 9.1°C
4 Auckland Island - Carnley Harbour Auckland 10.5°C
5 Pis 12.4°C
6 Kaka Point 13.1°C
7 Dunedin 13.2°C
8 Portobello 13.2°C
9 Snares Islands/Tini Heke - North East Island New Zealand Outlying Islands 13.4°C
10 Stewart Island 13.6°C

More on this region