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The coolest places in South America in October: ranked by average high temperature

Stanley tops the list at 8.7 °C in October. Ranked from 1991–2020 climate normals across 50 destinations in South America.

Top three in October: Stanley (8.7 °C) , Puerto Montt (14 °C) , La Paz (14 °C) . Between first and 50th place the avg high differs by 13 °C.

# Destination Country Avg high Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Stanley Falkland Islands 8.7 °C 8.7 °C 3.9 °C 41 mm 10 313 h 5.7 °C
2 Puerto Montt Chile 14 °C 14 °C 7.3 °C 177 mm 17 299 h 12 °C
3 La Paz Bolivia 14 °C 14 °C 3.9 °C 55 mm 15 352 h –
4 Valparaíso Chile 15 °C 15 °C 11 °C 14 mm 2 373 h 13 °C
5 Temuco Chile 16 °C 16 °C 6.2 °C 103 mm 11 317 h –
6 Juliaca Peru 16 °C 16 °C 2.8 °C 77 mm 14 358 h –
7 Talcahuano Chile 16 °C 16 °C 9.1 °C 45 mm 6 358 h 13 °C
8 Huancayo Peru 17 °C 17 °C 7.4 °C 141 mm 27 325 h –
9 Quito Ecuador 17 °C 17 °C 9.1 °C 259 mm 29 285 h –
10 Cusco Peru 17 °C 17 °C 7.5 °C 85 mm 20 326 h –
11 Concepción Chile 17 °C 17 °C 8.5 °C 46 mm 6 357 h 13 °C
12 Mar del Plata Argentina 17 °C 17 °C 10.0 °C 80 mm 9 314 h 13 °C
13 Tunja Colombia 17 °C 17 °C 8.4 °C 158 mm 26 292 h –
14 Latacunga Ecuador 18 °C 18 °C 9.0 °C 148 mm 26 324 h –
15 Ambato Ecuador 18 °C 18 °C 9.4 °C 154 mm 25 332 h –
16 Oruro Bolivia 18 °C 18 °C 3.3 °C 34 mm 10 363 h –
17 Pasto Colombia 18 °C 18 °C 11 °C 209 mm 25 295 h –
18 Cuenca Ecuador 18 °C 18 °C 10 °C 130 mm 22 314 h –
19 Montevideo Uruguay 18 °C 18 °C 13 °C 115 mm 9 302 h 16 °C
20 Soacha Colombia 19 °C 19 °C 11 °C 223 mm 23 290 h –
21 Bogotá Colombia 19 °C 19 °C 11 °C 95 mm 17 301 h –
22 Chillán Chile 19 °C 19 °C 7.2 °C 63 mm 7 349 h –
23 Riobamba Ecuador 19 °C 19 °C 9.6 °C 108 mm 20 312 h –
24 Viña del Mar Chile 19 °C 19 °C 11 °C 14 mm 2 372 h 13 °C
25 Rio Grande Brazil 19 °C 19 °C 16 °C 137 mm 10 283 h 18 °C
26 Cajamarca Peru 19 °C 19 °C 9.7 °C 253 mm 24 334 h –
27 Peñalolén Chile 19 °C 19 °C 7.0 °C 59 mm 10 352 h –
28 Manizales Colombia 20 °C 20 °C 11 °C 1,053 mm 30 266 h –
29 Puente Alto Chile 20 °C 20 °C 6.8 °C 60 mm 10 351 h –
30 Santa Anita - Los Ficus Peru 20 °C 20 °C 15 °C 2 mm 0 361 h 17 °C
31 La Plata Argentina 20 °C 20 °C 13 °C 106 mm 9 310 h 18 °C
32 Arica Chile 20 °C 20 °C 14 °C 8 mm 2 375 h 18 °C
33 Coquimbo Chile 20 °C 20 °C 12 °C 5 mm 1 364 h 14 °C
34 Rancagua Chile 20 °C 20 °C 7.0 °C 58 mm 8 349 h –
35 Buenos Aires Argentina 20 °C 20 °C 13 °C 119 mm 9 307 h 18 °C
36 Santiago Chile 20 °C 20 °C 8.0 °C 38 mm 6 358 h –
37 Avellaneda Argentina 20 °C 20 °C 13 °C 111 mm 9 305 h 18 °C
38 Antofagasta Chile 20 °C 20 °C 14 °C 1 mm 0 379 h 16 °C
39 Chimbote Peru 21 °C 21 °C 16 °C 2 mm 1 358 h 17 °C
40 Talca Chile 21 °C 21 °C 8.3 °C 40 mm 5 353 h –
41 Callao Peru 21 °C 21 °C 16 °C 2 mm 0 361 h 17 °C
42 Bahía Blanca Argentina 21 °C 21 °C 11 °C 63 mm 8 322 h 15 °C
43 Sucre Bolivia 21 °C 21 °C 9.6 °C 66 mm 13 327 h –
44 Pelotas Brazil 21 °C 21 °C 15 °C 141 mm 11 276 h –
45 Lages Brazil 21 °C 21 °C 13 °C 194 mm 16 225 h –
46 Popayán Colombia 21 °C 21 °C 14 °C 467 mm 30 243 h –
47 Ibarra Ecuador 21 °C 21 °C 11 °C 128 mm 22 323 h –
48 Caxias do Sul Brazil 21 °C 21 °C 12 °C 213 mm 15 260 h –
49 San Salvador de Jujuy Argentina 21 °C 21 °C 12 °C 237 mm 22 337 h –
50 Maipú Chile 21 °C 21 °C 9.0 °C 38 mm 6 359 h –

Monthly values for the month named in the ranking; only destinations with a published climate page are ranked. Download this ranking as CSV.

The same ranking one month earlier and later

September: top 5

  1. Stanley 6.6 °C
  2. Puerto Montt 12 °C
  3. La Paz 14 °C
  4. Temuco 14 °C
  5. Valparaíso 14 °C

Full ranking for September

November: top 5

  1. Stanley 11 °C
  2. La Paz 15 °C
  3. Puerto Montt 15 °C
  4. Quito 16 °C
  5. Juliaca 17 °C

Full ranking for November

How this ranking is built

What is ranked
The average daily high temperature, in °C, in October, lowest first.
Period
1991–2020 climate normals: the same 30 years for every destination, so the list compares like with like.
Who is included
50 destinations in South America with a published climate page. Neighbouring places that share a climate series are shown once.
Ties
Equal values are ordered by population.
Sources
ERA5 / ERA5-Land reanalysis via Open-Meteo; sea temperature from NOAA OISST v2.1. Measured values are reproduced unchanged; only the ordering is ours.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: ranking order, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.