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Coldest sea in South America in May

947 coastal locations in South America ranked by typical May sea temperature, coldest first. Region-wide average in May: 20.3°C.

Coldest in May

Ronne Ice Shelf

-1.8°C May mean in Argentina

Regional May average

20.3°C

across all 947 coastal locations in South America

Vs annual mean

-0.1°C

below the year-round regional average

What the South America 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.

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 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 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 May 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 May

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

# Location May mean
1 Ronne Ice Shelf Argentine Antarctica -1.8°C
2 Weddell Sea Argentine Antarctica -1.8°C
3 Signy Island Argentine Antarctica -0.7°C
4 Scotia Bay Argentine Antarctica -0.6°C
5 Port Stanley-A East Falkland 6.8°C
6 Punta Delgada Magallanes y la Antártica Chilena 6.9°C
7 Bahía San Sebastián Tierra del Fuego 7.0°C
8 Tierra del Fuego 7.0°C
9 Puerto Vancouver Tierra del Fuego Province 7.1°C
10 Caleta Brent Tierra del Fuego Province 7.2°C
11 Caleta la Mision Tierra del Fuego 7.2°C
12 Cabo Posesion Magallanes y la Antártica Chilena 7.3°C
13 Isla de los Estados 7.3°C
14 Fitzroy Creek East Falkland 7.3°C
15 Lively Settlement East Falkland 7.3°C
16 Mare Harbour East Falkland 7.3°C
17 Bahia Crossley Tierra del Fuego 7.3°C
18 Bleaker Island East Falkland 7.3°C
19 Adventure Sound East Falkland 7.3°C
20 Stanley 7.3°C
21 Puerto San Juan del Salvamento Tierra del Fuego 7.4°C
22 Punta Catalina Magallanes y la Antártica Chilena 7.4°C
23 Isla Observatorio Tierra del Fuego Province 7.4°C
24 Punta Arenas 7.4°C
25 Strait of Magellan 7.4°C
Show 25 more ▸
26 Fanny Cove Creek East Falkland 7.4°C
27 North Arm East Falkland 7.4°C
28 Diego Ramirez Magallanes Region 7.5°C
29 Great Island East Falkland 7.5°C
30 Port Howard Lafonia 7.5°C
31 Speedwell Island Falkland Sound 7.5°C
32 Swan Island Swan Island 7.5°C
33 Fox Bay West Falkland 7.5°C
34 Bahia Buen Suceso Tierra del Fuego 7.5°C
35 Argentino Lake 7.6°C
36 El Calafate 7.6°C
37 Viedma Lake 7.6°C
38 Berkeley Sound Lafonia 7.6°C
39 Port Stanley-B East Falkland 7.6°C
40 Port Stephens West Falkland 7.6°C
41 Bahia Aguirre Tierra del Fuego 7.6°C
42 Albemarle West Falkland 7.6°C
43 Rio Grande 7.6°C
44 New Island North West Islands 7.7°C
45 Ushuaia 7.7°C
46 Cape Horn 7.7°C
47 Puerto Williams 7.7°C
48 Bahia Thetis Tierra del Fuego Province 7.7°C
49 Port Salvador Entrance East Falkland 7.7°C
50 Tierra del Fuego 7.7°C

Warmest 10 in South America in May

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

# Location May mean
1 Costa de Oro 30.1°C
2 Covenas 29.9°C
3 Tolu 29.9°C
4 Porto de Mosqueiro Pará 29.5°C
5 Tintipan Island 29.5°C
6 Barcarena Para 29.4°C
7 Cameta Para 29.4°C
8 Limoeiro do Ajuru Para 29.4°C
9 Oeiras do Para Para 29.4°C
10 Belem Para 29.4°C

More on this region