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The driest places in South America in May: ranked by rainfall

Yanbu tops the list at 0.08 mm in May. Ranked from 1991–2020 climate normals across 50 destinations in South America.

Top three in May: Yanbu (0.08 mm) , Ica (0.3 mm) , Chincha Alta (0.5 mm) . Between first and 50th place the rainfall differs by 20 mm.

# Destination Country Rainfall Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Yanbu Saudi Arabia 0.08 mm 34 °C 25 °C 0 mm 0 394 h 27 °C
2 Ica Peru 0.3 mm 27 °C 18 °C 0 mm 0 346 h –
3 Chincha Alta Peru 0.5 mm 24 °C 18 °C 0 mm 0 346 h 19 °C
4 Jeddah Saudi Arabia 0.6 mm 34 °C 26 °C 1 mm 0 390 h 28 °C
5 Dammam Saudi Arabia 0.7 mm 36 °C 25 °C 1 mm 0 390 h 27 °C
6 Al Hufūf Saudi Arabia 0.8 mm 41 °C 25 °C 1 mm 0 390 h –
7 Al Jubayl Saudi Arabia 0.9 mm 37 °C 25 °C 1 mm 0 388 h 26 °C
8 Al Kharj Saudi Arabia 1.1 mm 40 °C 24 °C 1 mm 0 378 h –
9 Chimbote Peru 1.4 mm 23 °C 18 °C 1 mm 0 346 h 19 °C
10 Lima Peru 1.4 mm 23 °C 18 °C 1 mm 0 343 h 19 °C
11 Callao Peru 1.4 mm 22 °C 18 °C 1 mm 0 343 h 19 °C
12 Buraydah Saudi Arabia 1.5 mm 38 °C 23 °C 2 mm 0 370 h –
13 Hafar Al-Batin Saudi Arabia 1.5 mm 38 °C 23 °C 2 mm 0 377 h –
14 Tabuk Saudi Arabia 1.5 mm 34 °C 17 °C 2 mm 0 394 h –
15 Santa Anita - Los Ficus Peru 1.5 mm 21 °C 16 °C 2 mm 0 342 h 19 °C
16 Unaizah Saudi Arabia 1.6 mm 37 °C 23 °C 2 mm 0 370 h –
17 Madinah Saudi Arabia 1.7 mm 39 °C 23 °C 2 mm 1 388 h –
18 Riyadh Saudi Arabia 2.0 mm 39 °C 24 °C 2 mm 1 375 h –
19 Antofagasta Chile 2.2 mm 21 °C 15 °C 2 mm 0 324 h 17 °C
20 Trujillo Peru 3.7 mm 24 °C 19 °C 4 mm 1 348 h 19 °C
21 Tacna Peru 3.8 mm 22 °C 15 °C 4 mm 0 331 h –
22 Ha'il Saudi Arabia 4.1 mm 34 °C 20 °C 4 mm 1 377 h –
23 Najrān Saudi Arabia 4.2 mm 35 °C 21 °C 4 mm 1 364 h –
24 Calama Chile 4.6 mm 22 °C 3.1 °C 5 mm 1 335 h –
25 Arequipa Peru 4.9 mm 21 °C 8.9 °C 5 mm 1 337 h –
26 Chiclayo Peru 6.0 mm 25 °C 19 °C 6 mm 2 341 h 19 °C
27 Makkah Saudi Arabia 6.6 mm 39 °C 25 °C 7 mm 2 385 h –
28 Sullana Peru 7.1 mm 32 °C 20 °C 7 mm 2 338 h –
29 Iquique Chile 7.3 mm 23 °C 16 °C 7 mm 2 335 h 19 °C
30 Oruro Bolivia 7.4 mm 16 °C 0.6 °C 7 mm 2 338 h –
31 Piura Peru 8.1 mm 31 °C 20 °C 8 mm 2 337 h –
32 Şabyā Saudi Arabia 8.6 mm 36 °C 28 °C 9 mm 3 367 h 31 °C
33 Montes Claros Brazil 9.2 mm 27 °C 18 °C 9 mm 2 316 h –
34 Cochabamba Bolivia 11 mm 21 °C 9.3 °C 11 mm 2 332 h –
35 Quillacollo Bolivia 11 mm 22 °C 9.5 °C 11 mm 2 332 h –
36 Petrolina Brazil 12 mm 31 °C 22 °C 12 mm 2 296 h –
37 Aparecida de Goiânia Brazil 14 mm 27 °C 17 °C 14 mm 3 322 h –
38 Goiânia Brazil 14 mm 28 °C 17 °C 14 mm 3 322 h –
39 Planaltina Brazil 16 mm 26 °C 17 °C 16 mm 3 325 h –
40 Porlamar Venezuela 16 mm 28 °C 25 °C 16 mm 4 364 h 26 °C
41 La Paz Bolivia 16 mm 14 °C 2.7 °C 16 mm 5 337 h –
42 Águas Lindas de Goiás Brazil 18 mm 26 °C 16 °C 18 mm 3 326 h –
43 Luziânia Brazil 19 mm 26 °C 16 °C 19 mm 3 321 h –
44 Anápolis Brazil 19 mm 26 °C 17 °C 19 mm 3 325 h –
45 Sucre Bolivia 19 mm 18 °C 6.8 °C 19 mm 5 318 h –
46 Ceilândia Brazil 19 mm 25 °C 16 °C 19 mm 3 326 h –
47 Barreiras Brazil 19 mm 30 °C 21 °C 19 mm 3 325 h –
48 Ta’if Saudi Arabia 20 mm 31 °C 21 °C 20 mm 5 378 h –
49 Coquimbo Chile 20 mm 19 °C 13 °C 20 mm 2 276 h 15 °C
50 La Serena Chile 20 mm 20 °C 14 °C 20 mm 2 275 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. Yanbu 1.0 mm
  2. Tabuk 1.4 mm
  3. Iquique 1.4 mm
  4. Calama 1.6 mm
  5. Antofagasta 1.8 mm

Full ranking for April

June: top 5

  1. Jeddah 0 mm
  2. Dammam 0 mm
  3. Yanbu 0 mm
  4. Al Kharj 0.00 mm
  5. Tabuk 0.01 mm

Full ranking for June

How this ranking is built

What is ranked
Total precipitation, in mm, 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 fewest wet days.
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.