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Arequipa, Peru climate
BWk Cold desert
Arequipa has a remarkably steady mild-temperate climate (Cold desert, Köppen BWk). The hottest month is January with an average daily high near 22°C, while the coldest is July averaging around 7°C at night. Precipitation totals about 99 mm a year and is strongly seasonal — February alone averages 44 mm while November barely receives 0 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Arequipa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 |
| Avg temp (°C) | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 17 |
| Avg low (°C) | 11 | 12 | 11 | 10 | 8 | 7 | 7 | 8 | 9 | 9 | 9 | 10 |
| Precipitation (mm) | 32 | 44 | 17 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 22 | 23 | 23 | 23 | 23 |
| Avg temp (°C) | 17 | 17 | 17 | 16 | 16 | 15 |
| Avg low (°C) | 11 | 12 | 11 | 10 | 8 | 7 |
| Precipitation (mm) | 32 | 44 | 17 | 1 | 0 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 23 | 24 | 24 | 23 | 23 |
| Avg temp (°C) | 15 | 16 | 16 | 16 | 16 | 17 |
| Avg low (°C) | 7 | 8 | 9 | 9 | 9 | 10 |
| Precipitation (mm) | 0 | 1 | 0 | 0 | 0 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 68 | 57 | 40 | 28 | 26 | 25 | 27 | 28 | 36 | 40 | 54 |
| Relative humidity (%) | 64 | 68 | 66 | 55 | 40 | 36 | 33 | 33 | 35 | 38 | 43 | 54 |
| Wind speed (km/h) | 9.3 | 9.1 | 8.4 | 7.8 | 7.7 | 7.6 | 7.8 | 8.3 | 8.9 | 9.1 | 9.5 | 9.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 68 | 57 | 40 | 28 | 26 |
| Relative humidity (%) | 64 | 68 | 66 | 55 | 40 | 36 |
| Wind speed (km/h) | 9.3 | 9.1 | 8.4 | 7.8 | 7.7 | 7.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 27 | 28 | 36 | 40 | 54 |
| Relative humidity (%) | 33 | 33 | 35 | 38 | 43 | 54 |
| Wind speed (km/h) | 7.8 | 8.3 | 8.9 | 9.1 | 9.5 | 9.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at La Pampilla, about 2 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.