Warmest sea in Australia in January

954 coastal locations in Australia ranked by their typical January sea temperature. Region-wide average in January: 25.2°C. The top of the list is where to find the warmest swimming this month.

Warmest in January

Albert River Mouth

31.4°C January mean in Australia

Regional January average

25.2°C

across all 954 coastal locations in Australia

Vs annual mean

+2.3°C

above the year-round regional average

What the Australia sea feels like in January

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Australia monthly average 20.0°C to 25.5°C

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 January fits in the year

January 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 January 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 January

Sorted by the typical January 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	Country	January mean
1	Albert River Mouth Queensland	Australia	31.4°C
2	West Island Northern Territory	Australia	31.4°C
3	Gulf of Carpentaria Northern Territory	Australia	31.3°C
4	Centre Island Northern Territory	Australia	31.3°C
5	West Wellesley Islands Queensland	Australia	31.3°C
6	Cape Domett Western Australia	Australia	31.2°C
7	Shale Island Western Australia	Australia	31.2°C
8	Adolphus Island Western Australia	Australia	31.2°C
9	Quoin Island Northern Territory	Australia	31.2°C
10	Sweers Island Queensland	Australia	31.2°C
11	Australia Queensland	Australia	31.1°C
12	Mornington Island Queensland	Australia	31.1°C
13	Pelican Island Western Australia	Australia	31.1°C
14	Lacrosse Island Western Australia	Australia	31.1°C
15	Catfish Island Northern Territory	Australia	31.1°C
16	Valentine Island Western Australia	Australia	31.0°C
17	Jones Point Northern Territory	Australia	31.0°C
18	Lagrange Bay Western Australia	Australia	31.0°C
19	Port Keats Northern Territory	Australia	30.9°C
20	Lizard Island Western Australia	Australia	30.9°C
21	Depuch Island Western Australia	Australia	30.9°C
22	Port Usborne Western Australia	Australia	30.8°C
23	Milner Bay (Groote Eylandt) Northern Territory	Australia	30.8°C
24	Bountiful Island Queensland	Australia	30.8°C
25	Anson Bay Northern Territory	Australia	30.7°C

Show 25 more ▸

26	Cape Ford Northern Territory	Australia	30.7°C
27	Alyangula Northern Territory	Australia	30.7°C
28	Cape Scott Offshore Northern Territory	Australia	30.7°C
29	Hall Point Western Australia	Australia	30.7°C
30	Port Hedland Western Australia	Australia	30.6°C
31	Cape Boileau Western Australia	Australia	30.6°C
32	Cape Beatrice Northern Territory	Australia	30.6°C
33	Peron Island North Northern Territory	Australia	30.6°C
34	Reveley Island Western Australia	Australia	30.6°C
35	East Field Island Northern Territory	Australia	30.6°C
36	Hutchison River Northern Territory	Australia	30.6°C
37	West Alligator Head Northern Territory	Australia	30.6°C
38	Port Warrender Western Australia	Australia	30.6°C
39	Yampi Sound (Koolan Island) Western Australia	Australia	30.6°C
40	Chambers Bay Northern Territory	Australia	30.5°C
41	Point Stuart Northern Territory	Australia	30.5°C
42	Point Jenny Northern Territory	Australia	30.5°C
43	Nassau River Offshore Queensland	Australia	30.5°C
44	Jar Island Western Australia	Australia	30.5°C
45	Hawk Island Northern Territory	Australia	30.4°C
46	Native Point Northern Territory	Australia	30.4°C
47	Burge Point Northern Territory	Australia	30.4°C
48	Cape Baskerville Western Australia	Australia	30.4°C
49	Cape Hotham Northern Territory	Australia	30.4°C
50	Entrance Island Northern Territory	Australia	30.4°C

Coldest 10 in Australia in January

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

#	Location	Country	January mean
1	Heard Island Australian external territory	Australia	3.3°C
2	Macquarie Island Tasmania	Australia	7.1°C
3	Maatsuyker Island Tasmania	Australia	15.8°C
4	Recherche Bay Tasmania	Australia	15.8°C
5	Southport Jetty Tasmania	Australia	15.8°C
6	Bramble Cove Tasmania	Australia	15.8°C
7	Bruny Island Tasmania	Australia	16.4°C
8	Granton Tasmania	Australia	16.5°C
9	Kettering Tasmania	Australia	16.5°C
10	Margate Tasmania	Australia	16.5°C