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

4 destinations share the top spot at 0 mm in July, listed by fewest wet days, starting with Riyadh. Ranked from 1991–2020 climate normals across 50 destinations in South America.

Top three in July: Riyadh (0 mm) , Dammam (0 mm) , Buraydah (0 mm) . Between first and 50th place the rainfall differs by 4.8 mm.

# Destination Country Rainfall Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Riyadh Saudi Arabia 0 mm 43 °C 28 °C 0 mm 0 370 h –
2 Dammam Saudi Arabia 0 mm 40 °C 30 °C 0 mm 0 386 h 32 °C
3 Buraydah Saudi Arabia 0 mm 42 °C 26 °C 0 mm 0 382 h –
4 Unaizah Saudi Arabia 0 mm 42 °C 26 °C 0 mm 0 382 h –
5 Ha'il Saudi Arabia 0.01 mm 39 °C 25 °C 0 mm 0 395 h –
6 Al Kharj Saudi Arabia 0.01 mm 44 °C 28 °C 0 mm 0 370 h –
7 Yanbu Saudi Arabia 0.01 mm 36 °C 27 °C 0 mm 0 399 h 30 °C
8 Hafar Al-Batin Saudi Arabia 0.01 mm 43 °C 28 °C 0 mm 0 382 h –
9 Tabuk Saudi Arabia 0.02 mm 38 °C 22 °C 0 mm 0 402 h –
10 Al Jubayl Saudi Arabia 0.1 mm 41 °C 30 °C 0 mm 0 385 h 32 °C
11 Jeddah Saudi Arabia 0.1 mm 35 °C 28 °C 0 mm 0 387 h 30 °C
12 Ica Peru 0.2 mm 25 °C 15 °C 0 mm 0 336 h –
13 Madinah Saudi Arabia 0.2 mm 42 °C 26 °C 0 mm 0 395 h –
14 Al Hufūf Saudi Arabia 0.2 mm 45 °C 29 °C 0 mm 0 380 h –
15 Planaltina Brazil 0.3 mm 26 °C 15 °C 0 mm 0 330 h –
16 Luziânia Brazil 0.3 mm 26 °C 15 °C 0 mm 0 328 h –
17 Samambaia Brazil 0.3 mm 25 °C 14 °C 0 mm 0 329 h –
18 Palmas Brazil 0.3 mm 33 °C 21 °C 0 mm 0 340 h –
19 Barreiras Brazil 0.3 mm 30 °C 19 °C 0 mm 0 334 h –
20 Águas Lindas de Goiás Brazil 0.3 mm 26 °C 15 °C 0 mm 0 331 h –
21 Makkah Saudi Arabia 0.3 mm 40 °C 27 °C 0 mm 0 385 h –
22 Chiclayo Peru 0.4 mm 23 °C 17 °C 0 mm 0 336 h 18 °C
23 Brasília Brazil 0.4 mm 25 °C 14 °C 0 mm 0 330 h –
24 Chincha Alta Peru 0.5 mm 22 °C 16 °C 0 mm 0 332 h 17 °C
25 Piura Peru 0.5 mm 28 °C 17 °C 1 mm 0 333 h –
26 Trujillo Peru 0.6 mm 23 °C 17 °C 1 mm 0 341 h 18 °C
27 Anápolis Brazil 0.7 mm 26 °C 16 °C 1 mm 0 331 h –
28 Sullana Peru 0.7 mm 29 °C 18 °C 1 mm 0 335 h –
29 Montes Claros Brazil 0.8 mm 26 °C 16 °C 1 mm 0 316 h –
30 Aparecida de Goiânia Brazil 0.9 mm 27 °C 16 °C 1 mm 0 330 h –
31 Goiânia Brazil 0.9 mm 28 °C 16 °C 1 mm 0 330 h –
32 Lima Peru 1.0 mm 20 °C 15 °C 1 mm 0 337 h 18 °C
33 Callao Peru 1.0 mm 20 °C 15 °C 1 mm 0 337 h 18 °C
34 Santa Anita - Los Ficus Peru 1.0 mm 19 °C 14 °C 1 mm 0 337 h 18 °C
35 Chimbote Peru 1.1 mm 20 °C 16 °C 1 mm 0 340 h 18 °C
36 Arequipa Peru 1.2 mm 22 °C 7.5 °C 1 mm 0 336 h –
37 Sinop Brazil 1.5 mm 32 °C 19 °C 1 mm 0 336 h –
38 Najrān Saudi Arabia 2.0 mm 37 °C 22 °C 2 mm 1 341 h –
39 Araguaína Brazil 2.8 mm 33 °C 21 °C 3 mm 0 339 h –
40 Antofagasta Chile 3.0 mm 19 °C 13 °C 3 mm 1 311 h 15 °C
41 Petrolina Brazil 3.3 mm 29 °C 20 °C 3 mm 0 285 h –
42 Calama Chile 3.3 mm 20 °C 1.6 °C 3 mm 0 328 h –
43 Ta’if Saudi Arabia 3.5 mm 33 °C 23 °C 4 mm 1 380 h –
44 Santa Luzia Brazil 3.5 mm 24 °C 13 °C 4 mm 1 304 h –
45 Ribeirão das Neves Brazil 3.7 mm 24 °C 13 °C 4 mm 1 307 h –
46 Patos de Minas Brazil 3.8 mm 25 °C 14 °C 4 mm 1 316 h –
47 Rio Verde Brazil 3.9 mm 27 °C 16 °C 4 mm 1 332 h –
48 Tacna Peru 4.1 mm 19 °C 13 °C 4 mm 0 317 h –
49 Sete Lagoas Brazil 4.4 mm 25 °C 13 °C 4 mm 1 309 h –
50 Contagem Brazil 4.8 mm 23 °C 12 °C 5 mm 1 302 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

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

August: top 5

  1. Buraydah 0.01 mm
  2. Hafar Al-Batin 0.01 mm
  3. Al Kharj 0.01 mm
  4. Tabuk 0.02 mm
  5. Riyadh 0.02 mm

Full ranking for August

How this ranking is built

What is ranked
Total precipitation, in mm, in July, 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.