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Warmest sea in Argentina

167 coastal locations in Argentina ranked by their year-round average sea temperature. The regional average is 14.1°C. The top of the list shows where to find the warmest water in a typical year. The bottom shows the coldest year-round coasts of the region.

Warmest location

Puerto Iguazu

20.5°C annual mean in Argentina

Regional average

14.1°C

across all 167 Argentina coastal locations

Warmest month

February

18.7°C region-wide average

Argentina monthly average 9.7°C to 18.7°C
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  • 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. Pick any pin for the location's full page.

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 locations in Argentina

The warmest coastal locations across all of Argentina, sorted by year-round average. Click any place for its 30-day chart, monthly profile, and 10-year history.

# 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
11 Concordia 20.2°C
12 Buenos Aires 20.1°C
13 Olivos 20.1°C
14 Quilmes 20.1°C
15 Retiro 20.1°C
16 Tigre 20.1°C
17 Ciudadela 20.0°C
18 Ensenada 19.4°C
19 Punta Lara 19.4°C
20 Chascomus 19.1°C
21 Puerto La Plata Provincia de Buenos Aires 19.1°C
22 Corrientes 18.7°C
23 Punta Indio 18.4°C
24 Canal Punta Indio (West) Buenos Aires Province 18.4°C
25 Punta Piedras Buenos Aires 18.1°C
Show 25 more ▸
26 Canal Punta Indio (East) Buenos Aires Province 18.1°C
27 Punta Rasa 17.7°C
28 Cabo San Antonio Provincia de Buenos Aires 17.7°C
29 Las Toninas 17.6°C
30 San Clemente del Tuyu 17.6°C
31 Aguas Verdes 17.3°C
32 Costa del Este 17.3°C
33 La Lucila del Mar 17.3°C
34 Mar de Ajo 17.3°C
35 Mar del Tuyu 17.3°C
36 San Bernardo 17.3°C
37 Santa Teresita 17.3°C
38 Nueva Atlantis 17.0°C
39 Punta Medanos 17.0°C
40 Mar del Ajo Provincia de Buenos Aires 16.9°C
41 Termas de Rio Hondo 16.9°C
42 Mina Clavero 16.4°C
43 Villa Gesell 16.3°C
44 Carilo 16.3°C
45 Pinamar 16.3°C
46 Valeria del Mar 16.3°C
47 Mar Azul 16.1°C
48 Mar de las Pampas 16.1°C
49 Balneario Sauce Grande 15.9°C
50 Monte Hermoso 15.9°C

Coldest 10 in Argentina for contrast

Same data, sorted the other way. Useful if you want to know which Argentina coasts stay coldest year-round.

# 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

More on this region