Skip to content
seatemperatures.net

Coldest sea in Argentina

167 coastal locations in Argentina ranked by year-round average sea temperature, coldest first. The regional average is 14.1°C. The top of the list is where the water stays cold all year. The contrast list at the bottom shows the warmest coasts for context.

Coldest location

Weddell Sea

Year-round average -1.8°C in Argentina

Regional average

14.1°C

across all 167 Argentina coastal locations

Coldest month

August

9.7°C region-wide average

Argentina monthly average 9.7°C to 18.7°C
J
F
M
A
M
J
J
A
S
O
N
D
  • Warmest month February 18.7°C
  • Coldest month August 9.7°C
  • Annual mean 14.1°C
  • Months above 20°C 0 of 12

Month by month across Argentina

Sea temperatures in Argentina swing from 9.7°C in August to 18.7°C in February on average across every coast we track. That spread of 9°C hides much bigger swings at individual locations.

Want a specific month? Pick one for a dedicated ranking:

Argentina sea temperature map

Today's pin colours show the latest daily reading at every Argentina location we track. Cool blues cluster around the high-latitude coasts.

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 locations in Argentina

Coastal locations across Argentina sorted by year-round average, coldest first. Honest cold-water swimming country. Click any place for its 30-day chart, monthly profile, and 10-year history.

# Location Annual mean
1 Weddell Sea Argentine Antarctica -1.8°C
2 Ronne Ice Shelf Argentine Antarctica -1.8°C
3 Signy Island Argentine Antarctica -0.7°C
4 Scotia Bay Argentine Antarctica -0.7°C
5 Puerto Vancouver Tierra del Fuego Province 7.0°C
6 Caleta Brent Tierra del Fuego Province 7.1°C
7 Caleta la Mision Tierra del Fuego 7.1°C
8 Puerto San Juan del Salvamento Tierra del Fuego 7.2°C
9 Bahia Crossley Tierra del Fuego 7.2°C
10 Bahía San Sebastián Tierra del Fuego 7.2°C
11 Isla Observatorio Tierra del Fuego Province 7.2°C
12 Rio Grande 7.2°C
13 Isla de los Estados 7.3°C
14 Tierra del Fuego 7.3°C
15 Bahia Buen Suceso Tierra del Fuego 7.4°C
16 Cabo Virgenes Santa Cruz 7.5°C
17 Bahia Aguirre Tierra del Fuego 7.5°C
18 Ushuaia 7.5°C
19 Bahia Thetis Tierra del Fuego Province 7.5°C
20 Rio Gallegos 7.8°C
21 Argentino Lake 8.1°C
22 El Calafate 8.1°C
23 Viedma Lake 8.1°C
24 Comandante Luis Piedrabuena 8.8°C
25 Puerto Santa Cruz 8.8°C
Show 25 more ▸
26 Puerto de Punta Quilla 8.9°C
27 Muelle Frigorifico Santa Cruz 9.1°C
28 Puerto San Julian 9.2°C
29 Bahía Laura Santa Cruz 9.5°C
30 Bahia de los Nodales Santa Cruz 9.7°C
31 Puerto Deseado 9.7°C
32 Cabo Blanco Santa Cruz 10.6°C
33 Caleta Olivia 11.7°C
34 Rada Tilly Chubut 11.7°C
35 Comodoro Rivadavia Chubut 11.8°C
36 Camarones Chubut 12.2°C
37 Puerto Santa Elena Entre Rios 12.2°C
38 Caleta Carolina Chubut 12.2°C
39 Bahia Bustamante Chubut 12.3°C
40 Bahia Gil Chubut Province 12.3°C
41 Puerto Melo Chubut 12.3°C
42 Bahia Janssen Chubut 12.7°C
43 Bahía Engaño Chubut 12.9°C
44 Isla Escondida Chubut Province 12.9°C
45 Alumine 12.9°C
46 Playa Union Chubut 12.9°C
47 Rawson Chubut 12.9°C
48 Trelew 12.9°C
49 Gutierrez Lake 13.0°C
50 Moreno Lake 13.0°C

Warmest 10 in Argentina for contrast

Same data flipped. Useful if you want to know which Argentina coasts stay warmest year-round before you commit to a cold-water swim trip.

# Location Annual mean
1 Puerto Iguazu 20.5°C
2 Isla Martín García Buenos Aires 20.4°C
3 Isla Martin Garcia Buenos Aires Province 20.3°C
4 Baradero 20.3°C
5 Gualeguaychu 20.3°C
6 Mar Chiquita Lake 20.3°C
7 San Roque Lake 20.3°C
8 Villa Carlos Paz 20.3°C
9 Colon Entre Rios 20.2°C
10 Concepcion del Uruguay Entre Rios 20.2°C

More on this region