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Warmest sea in Australia and Oceania in July

1,649 coastal locations in Australia and Oceania ranked by their typical July sea temperature. Region-wide average in July: 21.5°C. The top of the list is where to find the warmest swimming this month.

Warmest in July

Agrihan

30.1°C July mean in Northern Mariana Islands

Regional July average

21.5°C

across all 1,649 coastal locations in Australia and Oceania

Vs annual mean

-2.0°C

below the year-round regional average

What the Australia and Oceania sea feels like in July

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 July fits in the year

July 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 July 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 July

Sorted by the typical July 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 July mean
1 Agrihan 30.1°C
2 Maug Islands 30.1°C
3 Tavanatangir Harbour East New Britain Province 30.1°C
4 Pagan Island, Marianas Northern Islands 30.1°C
5 Kimbe Bay West New Britain Province 30.1°C
6 Talasea West New Britain Province 30.1°C
7 Kapingamarangi 30.0°C
8 Eleonora Bay West New Britain Province 30.0°C
9 YasoruTo Yap 29.9°C
10 Ulithi Islands Yap 29.9°C
11 Woleai Island Yap 29.9°C
12 Nukuoro 29.9°C
13 Ifalik Atoll, Caroline Islands, FSM Yap 29.9°C
14 Yap Island Yap 29.9°C
15 Colonia 29.9°C
16 Rumung 29.9°C
17 Yap 29.9°C
18 Lamotrek Yap 29.9°C
19 Sorol 29.9°C
20 Saipan 29.9°C
21 Susupe 29.9°C
22 Tinian 29.9°C
23 Point Stone Island Manus Province 29.9°C
24 Ngulu Islet Yap 29.9°C
25 Kavieng 29.9°C
Show 25 more ▸
26 Kimbe 29.9°C
27 Lombrum Manus Province 29.9°C
28 Ifalik 29.9°C
29 San Jose 29.9°C
30 Fais 29.8°C
31 Saipan Harbor, Saipan Island, Marianas Saipan 29.8°C
32 Tanapag Harbor, Saipan Island, Marianas Saipan 29.8°C
33 Rota Island Rota Island 29.8°C
34 Namoluk Atoll, Chuuk, FSM Chuuk 29.8°C
35 Garukoru (Ngaregur) Ngarchelong 29.8°C
36 Soroken Bougainville 29.8°C
37 Moro Tu Chuuk 29.8°C
38 Satawan Anchorage, Nomoi Islands, Chuuk, FSM Chuuk 29.8°C
39 Tinian Island, Marianas Tinian 29.8°C
40 Toagel Mlungui Ngatpang 29.8°C
41 Anewa Bay Bougainville 29.8°C
42 Kuttu 29.8°C
43 Namoluk 29.8°C
44 Rota 29.8°C
45 Melekeok 29.8°C
46 Lorengau 29.8°C
47 Dededo 29.8°C
48 Tamuning 29.8°C
49 Tumon 29.8°C
50 Lukunor 29.8°C

Coldest 10 in Australia and Oceania in July

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

# Location July mean
1 Heard Island Australian external territory 2.3°C
2 Macquarie Island Tasmania 5.0°C
3 Campbell Island/Motu Ihupuku - Perseverance Harbour New Zealand Outlying Islands 7.7°C
4 Auckland Island - Carnley Harbour Auckland 9.0°C
5 Timaru 10.0°C
6 Sumner 10.1°C
7 Akaroa 10.3°C
8 Christchurch 10.3°C
9 Lyttelton 10.3°C
10 Dunedin 10.4°C

More on this region