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

Stanley tops the list at 5.5 °C in August. Ranked from 1991–2020 climate normals across 50 destinations in South America.

Top three in August: Stanley (5.5 °C) , Puerto Montt (10 °C) , Temuco (12 °C) . Between first and 50th place the avg high differs by 14 °C.

# Destination Country Avg high Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Stanley Falkland Islands 5.5 °C 5.5 °C 2.0 °C 39 mm 10 192 h 5.1 °C
2 Puerto Montt Chile 10 °C 10 °C 5.2 °C 273 mm 21 200 h 10 °C
3 Temuco Chile 12 °C 12 °C 4.3 °C 192 mm 15 211 h –
4 La Paz Bolivia 13 °C 13 °C 1.1 °C 22 mm 6 339 h –
5 Talcahuano Chile 13 °C 13 °C 7.1 °C 125 mm 12 244 h 12 °C
6 Mar del Plata Argentina 14 °C 14 °C 6.7 °C 55 mm 6 247 h 10 °C
7 Concepción Chile 14 °C 14 °C 6.4 °C 125 mm 12 244 h 12 °C
8 Valparaíso Chile 14 °C 14 °C 9.7 °C 55 mm 5 282 h 13 °C
9 Chillán Chile 14 °C 14 °C 4.5 °C 166 mm 12 237 h –
10 Peñalolén Chile 15 °C 15 °C 2.7 °C 89 mm 8 270 h –
11 Montevideo Uruguay 15 °C 15 °C 9.6 °C 94 mm 8 245 h 12 °C
12 Neuquén Argentina 15 °C 15 °C 4.0 °C 13 mm 3 273 h –
13 Puente Alto Chile 15 °C 15 °C 2.5 °C 90 mm 8 270 h –
14 Talca Chile 15 °C 15 °C 5.0 °C 110 mm 9 243 h –
15 Bahía Blanca Argentina 15 °C 15 °C 6.5 °C 34 mm 5 256 h 8.6 °C
16 Oruro Bolivia 15 °C 15 °C -0.7 °C 12 mm 3 338 h –
17 Juliaca Peru 15 °C 15 °C -0.6 °C 18 mm 5 344 h –
18 La Plata Argentina 15 °C 15 °C 8.7 °C 69 mm 6 249 h 13 °C
19 Santiago Chile 16 °C 16 °C 3.8 °C 79 mm 7 271 h –
20 Buenos Aires Argentina 16 °C 16 °C 9.0 °C 72 mm 7 251 h 13 °C
21 Avellaneda Argentina 16 °C 16 °C 8.6 °C 67 mm 6 248 h 13 °C
22 Rancagua Chile 16 °C 16 °C 3.2 °C 107 mm 9 254 h –
23 Cusco Peru 16 °C 16 °C 5.2 °C 22 mm 6 336 h –
24 Rio Grande Brazil 16 °C 16 °C 12 °C 110 mm 10 251 h 14 °C
25 Huancayo Peru 16 °C 16 °C 5.6 °C 41 mm 12 345 h –
26 Tunja Colombia 16 °C 16 °C 7.8 °C 115 mm 26 329 h –
27 Viña del Mar Chile 16 °C 16 °C 8.1 °C 54 mm 5 282 h 13 °C
28 Maipú Chile 17 °C 17 °C 4.4 °C 81 mm 7 271 h –
29 Merlo Argentina 17 °C 17 °C 7.6 °C 61 mm 6 248 h –
30 Cuenca Ecuador 17 °C 17 °C 8.8 °C 57 mm 14 318 h –
31 Ambato Ecuador 17 °C 17 °C 7.9 °C 124 mm 24 334 h –
32 Latacunga Ecuador 17 °C 17 °C 8.0 °C 83 mm 20 329 h –
33 Arica Chile 18 °C 18 °C 13 °C 18 mm 6 338 h 17 °C
34 San Salvador de Jujuy Argentina 18 °C 18 °C 7.7 °C 64 mm 10 327 h –
35 Coquimbo Chile 18 °C 18 °C 10 °C 15 mm 2 291 h 13 °C
36 Quito Ecuador 18 °C 18 °C 8.7 °C 102 mm 22 304 h –
37 Río Cuarto Argentina 18 °C 18 °C 6.8 °C 20 mm 3 286 h –
38 Pelotas Brazil 18 °C 18 °C 11 °C 115 mm 10 249 h –
39 Lages Brazil 18 °C 18 °C 8.6 °C 112 mm 9 242 h –
40 Rosario Argentina 18 °C 18 °C 8.3 °C 55 mm 5 264 h –
41 Caxias do Sul Brazil 18 °C 18 °C 8.6 °C 139 mm 11 249 h –
42 Riobamba Ecuador 19 °C 19 °C 8.1 °C 31 mm 8 331 h –
43 Pasto Colombia 19 °C 19 °C 10 °C 66 mm 16 329 h –
44 Santa Anita - Los Ficus Peru 19 °C 19 °C 14 °C 1 mm 0 344 h 17 °C
45 Paraná Argentina 19 °C 19 °C 9.4 °C 48 mm 5 267 h –
46 La Serena Chile 19 °C 19 °C 11 °C 16 mm 2 291 h 13 °C
47 Córdoba Argentina 19 °C 19 °C 6.8 °C 18 mm 3 303 h –
48 San Luis Argentina 19 °C 19 °C 7.2 °C 15 mm 2 301 h –
49 La Rioja Argentina 19 °C 19 °C 8.4 °C 10 mm 2 320 h –
50 Bogotá Colombia 19 °C 19 °C 11 °C 22 mm 7 324 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

July: top 5

  1. Al Hufūf 45 °C
  2. Al Kharj 44 °C
  3. Hafar Al-Batin 43 °C
  4. Riyadh 43 °C
  5. Buraydah 42 °C

Full ranking for July

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

How this ranking is built

What is ranked
The average daily high temperature, in °C, in August, 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.