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Coldest sea in South America in August

947 coastal locations in South America ranked by typical August sea temperature, coldest first. Region-wide average in August: 18.1°C.

Coldest in August

Ronne Ice Shelf

-1.8°C August mean in Argentina

Regional August average

18.1°C

across all 947 coastal locations in South America

Vs annual mean

-2.3°C

below the year-round regional average

What the South America sea feels like in August

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.

South America monthly average 18.1°C to 22.7°C
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  • Warmest month February 22.7°C
  • Coldest month August 18.1°C
  • Annual mean 20.4°C
  • Months above 20°C 7 of 12

Where August fits in the year

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

All twelve South America month rankings:

South America sea temperature map (live)

The map shows today's latest reading at every South America location. The list below is based on the typical August mean.

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 coldest South America locations in August

Sorted by typical August mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location August mean
1 Ronne Ice Shelf Argentine Antarctica -1.8°C
2 Weddell Sea Argentine Antarctica -1.8°C
3 Signy Island Argentine Antarctica -1.7°C
4 Scotia Bay Argentine Antarctica -1.7°C
5 Caleta la Mision Tierra del Fuego 3.0°C
6 Bahía San Sebastián Tierra del Fuego 3.3°C
7 Rio Grande 3.6°C
8 Tierra del Fuego 3.9°C
9 Cabo Posesion Magallanes y la Antártica Chilena 3.9°C
10 Punta Catalina Magallanes y la Antártica Chilena 4.0°C
11 Ajax Bay East Falkland 4.1°C
12 New Haven East Falkland 4.1°C
13 North West Islands North West Islands 4.1°C
14 Rio Gallegos 4.1°C
15 Cabo Virgenes Santa Cruz 4.3°C
16 Magellan Strait East Entrance Magallanes Region 4.3°C
17 Punta Dungeness Magallanes y la Antártica Chilena 4.3°C
18 Great Island East Falkland 4.5°C
19 Port Howard Lafonia 4.5°C
20 Speedwell Island Falkland Sound 4.5°C
21 Swan Island Swan Island 4.5°C
22 Punta Delgada Magallanes y la Antártica Chilena 4.5°C
23 Lively Settlement East Falkland 4.6°C
24 Mare Harbour East Falkland 4.6°C
25 Port Salvador Entrance East Falkland 4.8°C
Show 25 more ▸
26 Fitzroy Creek East Falkland 4.8°C
27 Roy Cove West Falkland 5.0°C
28 Berkeley Sound Lafonia 5.0°C
29 Port Stanley-B East Falkland 5.0°C
30 Stanley 5.0°C
31 Tierra del Fuego 5.2°C
32 Fox Bay West Falkland 5.2°C
33 Bleaker Island East Falkland 5.2°C
34 Adventure Sound East Falkland 5.2°C
35 Golding Island North West Islands 5.2°C
36 Pebble Island North West Islands 5.2°C
37 Westpoint Island North West Islands 5.2°C
38 Fanny Cove Creek East Falkland 5.2°C
39 North Arm East Falkland 5.2°C
40 Muelle Frigorifico Santa Cruz 5.3°C
41 Comandante Luis Piedrabuena 5.3°C
42 Albemarle West Falkland 5.3°C
43 Port Stanley-A East Falkland 5.3°C
44 Keppel Sound West Falkland 5.4°C
45 Port Stephens West Falkland 5.4°C
46 Saunders Island North West Islands 5.4°C
47 Puerto Santa Cruz 5.5°C
48 Puerto San Julian 5.5°C
49 New Island North West Islands 5.6°C
50 Puerto de Punta Quilla 5.6°C

Warmest 10 in South America in August

Same data the other way. The warmest spots for the same month.

# Location August mean
1 Covenas 30.3°C
2 Tolu 30.3°C
3 Tintipan Island 30.0°C
4 Baru Island 29.9°C
5 Bahia el Tablazo Zulia 29.9°C
6 El Toro Zulia 29.9°C
7 Punta de Palmas Zulia 29.9°C
8 Malecon Zulia 29.8°C
9 Rosario Islands 29.8°C
10 Ilha Do Brigue State of Amapá 29.7°C

More on this region