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Warmest sea in Chile in September

147 coastal locations in Chile ranked by their typical September sea temperature. Region-wide average in September: 12.2°C. The top of the list is where to find the warmest swimming this month.

Warmest in September

Anakena

20.6°C September mean in Chile

Regional September average

12.2°C

across all 147 coastal locations in Chile

Vs annual mean

-1.6°C

below the year-round regional average

What the Chile sea feels like in September

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

Chile monthly average 12.1°C to 16.0°C
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  • Warmest month February 16.0°C
  • Coldest month August 12.1°C
  • Annual mean 13.8°C
  • Months above 20°C 0 of 12

Where September fits in the year

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

All twelve Chile month rankings:

Chile sea temperature map (live)

The map shows today's latest reading at every Chile location. The list below is based on the typical September 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 Chile locations in September

Sorted by the typical September 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 September mean
1 Anakena 20.6°C
2 Easter Island 20.6°C
3 Hanga Roa 20.6°C
4 Isla de Pascua (Hanga Piko) Valparaíso 20.3°C
5 San Felix Valparaíso 16.9°C
6 Arica 16.9°C
7 Cavancha 16.8°C
8 Iquique 16.8°C
9 Calama 16.4°C
10 Tocopilla 16.4°C
11 Michilla 16.2°C
12 Hornitos 15.9°C
13 Mejillones 15.8°C
14 Juan Lopez 15.4°C
15 Antofagasta 15.3°C
16 Atacama 15.3°C
17 Taltal 14.9°C
18 Taltal Antofagasta 14.8°C
19 Alejandro Selkirk Island 14.6°C
20 Chanaral 14.6°C
21 Juan Fernandez Islands 14.6°C
22 Robinson Crusoe Island 14.6°C
23 Bahia Inglesa 14.5°C
24 Caldera 14.5°C
25 Calderilla 14.5°C
Show 25 more ▸
26 Playa La Virgen 14.5°C
27 Isla Robinson Crusoe Valparaiso 14.4°C
28 Chanaral de las Animas Chañaral 14.4°C
29 Copiapo 14.2°C
30 Puerto Caldera Copiapo 14.2°C
31 Huasco 13.8°C
32 Carrizal Bajo Huasco 13.7°C
33 Puerto Huasco Huasco 13.7°C
34 Damas Island 13.4°C
35 Coquimbo 13.2°C
36 La Herradura 13.2°C
37 La Serena 13.2°C
38 Caleta Hornos 13.2°C
39 Punta de Choros 13.2°C
40 Guanaqueros 13.2°C
41 Las Tacas 13.2°C
42 Playas Blancas 13.2°C
43 Totoralillo 13.2°C
44 Puerto Aldea 13.1°C
45 Tongoy 13.1°C
46 Los Vilos 13.0°C
47 Los Molles 13.0°C
48 Pichidangui 13.0°C
49 Cachagua 12.7°C
50 Caleta Horcon 12.7°C

Coldest 10 in Chile in September

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

# Location September mean
1 Punta Catalina Magallanes y la Antártica Chilena 4.5°C
2 Magellan Strait East Entrance Magallanes Region 4.5°C
3 Punta Dungeness Magallanes y la Antártica Chilena 4.5°C
4 Cabo Posesion Magallanes y la Antártica Chilena 4.5°C
5 Punta Delgada Magallanes y la Antártica Chilena 5.2°C
6 Tierra del Fuego 5.6°C
7 Diego Ramirez Magallanes Region 5.7°C
8 Puerto Williams 5.9°C
9 Puerto Toro 6.1°C
10 Punta Arenas 6.2°C

More on this region