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

Stanley tops the list at 7.0 °C in May. Ranked from 1991–2020 climate normals across 50 destinations in South America.

Top three in May: Stanley (7.0 °C) , Puerto Montt (13 °C) , La Paz (14 °C) . Between first and 50th place the avg high differs by 12 °C.

# Destination Country Avg high Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Stanley Falkland Islands 7.0 °C 7.0 °C 3.7 °C 48 mm 12 154 h 7.1 °C
2 Puerto Montt Chile 13 °C 13 °C 7.8 °C 254 mm 19 185 h 11 °C
3 La Paz Bolivia 14 °C 14 °C 2.7 °C 16 mm 5 337 h –
4 Temuco Chile 14 °C 14 °C 6.6 °C 184 mm 13 196 h –
5 Juliaca Peru 14 °C 14 °C -0.4 °C 22 mm 5 338 h –
6 Talcahuano Chile 15 °C 15 °C 9.0 °C 137 mm 10 225 h 13 °C
7 Cusco Peru 15 °C 15 °C 6.2 °C 25 mm 7 324 h –
8 Concepción Chile 16 °C 16 °C 8.5 °C 138 mm 10 224 h 13 °C
9 Oruro Bolivia 16 °C 16 °C 0.6 °C 7 mm 2 338 h –
10 Valparaíso Chile 16 °C 16 °C 12 °C 52 mm 4 267 h 14 °C
11 Mar del Plata Argentina 16 °C 16 °C 10 °C 45 mm 6 231 h 15 °C
12 Chillán Chile 16 °C 16 °C 6.8 °C 192 mm 10 227 h –
13 Huancayo Peru 16 °C 16 °C 6.7 °C 49 mm 14 333 h –
14 Neuquén Argentina 16 °C 16 °C 6.7 °C 26 mm 5 228 h –
15 San Salvador de Jujuy Argentina 16 °C 16 °C 9.7 °C 168 mm 19 293 h –
16 Quito Ecuador 16 °C 16 °C 9.5 °C 254 mm 29 271 h –
17 Bahía Blanca Argentina 17 °C 17 °C 9.2 °C 39 mm 6 236 h 14 °C
18 Montevideo Uruguay 17 °C 17 °C 13 °C 77 mm 7 230 h 16 °C
19 Tunja Colombia 17 °C 17 °C 9.3 °C 182 mm 29 276 h –
20 Talca Chile 17 °C 17 °C 7.6 °C 136 mm 8 231 h –
21 Latacunga Ecuador 17 °C 17 °C 9.5 °C 157 mm 28 303 h –
22 Ambato Ecuador 17 °C 17 °C 9.7 °C 166 mm 28 311 h –
23 La Plata Argentina 17 °C 17 °C 11 °C 63 mm 6 237 h 17 °C
24 Cuenca Ecuador 17 °C 17 °C 11 °C 114 mm 22 290 h –
25 Buenos Aires Argentina 17 °C 17 °C 12 °C 76 mm 7 233 h 17 °C
26 Avellaneda Argentina 17 °C 17 °C 11 °C 68 mm 6 232 h 17 °C
27 Salta Argentina 18 °C 18 °C 9.9 °C 122 mm 14 292 h –
28 Peñalolén Chile 18 °C 18 °C 5.7 °C 77 mm 7 257 h –
29 Lages Brazil 18 °C 18 °C 9.8 °C 128 mm 10 213 h –
30 Caxias do Sul Brazil 18 °C 18 °C 9.9 °C 139 mm 11 230 h –
31 La Rioja Argentina 18 °C 18 °C 10 °C 29 mm 5 274 h –
32 Pasto Colombia 18 °C 18 °C 11 °C 203 mm 27 287 h –
33 Puente Alto Chile 18 °C 18 °C 5.5 °C 79 mm 7 257 h –
34 Bogotá Colombia 18 °C 18 °C 11 °C 89 mm 17 272 h –
35 Merlo Argentina 18 °C 18 °C 10 °C 66 mm 6 229 h –
36 Riobamba Ecuador 18 °C 18 °C 9.9 °C 117 mm 22 297 h –
37 Soacha Colombia 18 °C 18 °C 12 °C 175 mm 18 252 h –
38 Río Cuarto Argentina 18 °C 18 °C 9.4 °C 34 mm 4 243 h –
39 Rancagua Chile 18 °C 18 °C 5.8 °C 96 mm 7 241 h –
40 Sucre Bolivia 18 °C 18 °C 6.8 °C 19 mm 5 318 h –
41 Viña del Mar Chile 18 °C 18 °C 10 °C 50 mm 4 267 h 14 °C
42 Santiago Chile 19 °C 19 °C 6.7 °C 60 mm 6 255 h –
43 Guarapuava Brazil 19 °C 19 °C 11 °C 130 mm 10 252 h –
44 San Luis Argentina 19 °C 19 °C 9.3 °C 25 mm 4 260 h –
45 Rio Grande Brazil 19 °C 19 °C 16 °C 104 mm 9 239 h 19 °C
46 Colombo Brazil 19 °C 19 °C 12 °C 88 mm 9 227 h –
47 Córdoba Argentina 19 °C 19 °C 9.6 °C 35 mm 6 248 h –
48 Cajamarca Peru 19 °C 19 °C 10.0 °C 142 mm 20 339 h –
49 Rosario Argentina 19 °C 19 °C 11 °C 69 mm 6 232 h –
50 Coquimbo Chile 19 °C 19 °C 13 °C 20 mm 2 276 h 15 °C

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

April: top 5

  1. Stanley 9.5 °C
  2. La Paz 14 °C
  3. Juliaca 14 °C
  4. Puerto Montt 15 °C
  5. Cusco 15 °C

Full ranking for April

June: top 5

  1. Stanley 5.1 °C
  2. Puerto Montt 10 °C
  3. Temuco 12 °C
  4. Neuquén 12 °C
  5. Mar del Plata 13 °C

Full ranking for June

How this ranking is built

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