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Copiapó, Chile climate
BWk Cold desert
Copiapó has a mildly seasonal mild-temperate climate (Cold desert, Köppen BWk). The hottest month is February with an average daily high near 26°C, while the coldest is July averaging around 7°C at night. Precipitation totals about 34 mm a year and is strongly seasonal — May alone averages 7 mm while January barely receives 0 mm. Snow is occasional (13 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 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)Copiapó climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 26 | 26 | 24 | 22 | 20 | 20 | 21 | 23 | 24 | 25 | 25 |
| Avg temp (°C) | 20 | 20 | 20 | 18 | 16 | 14 | 14 | 15 | 16 | 17 | 18 | 19 |
| Avg low (°C) | 13 | 14 | 14 | 12 | 10 | 8 | 7 | 8 | 9 | 11 | 12 | 13 |
| Precipitation (mm) | 0 | 0 | 4 | 2 | 7 | 7 | 7 | 4 | 2 | 1 | 0 | 1 |
| Snowfall (cm) | — | — | — | 0 | 2 | 5 | 3 | 2 | 1 | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 26 | 26 | 24 | 22 | 20 |
| Avg temp (°C) | 20 | 20 | 20 | 18 | 16 | 14 |
| Avg low (°C) | 13 | 14 | 14 | 12 | 10 | 8 |
| Precipitation (mm) | 0 | 0 | 4 | 2 | 7 | 7 |
| Snowfall (cm) | — | — | — | 0 | 2 | 5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 21 | 23 | 24 | 25 | 25 |
| Avg temp (°C) | 14 | 15 | 16 | 17 | 18 | 19 |
| Avg low (°C) | 7 | 8 | 9 | 11 | 12 | 13 |
| Precipitation (mm) | 7 | 4 | 2 | 1 | 0 | 1 |
| Snowfall (cm) | 3 | 2 | 1 | — | — | — |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | — | — | — | — | 0.1 | 0.1 | 0.6 | 0.1 | 0.1 | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | — | — | — | — | 0.1 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | 0.6 | 0.1 | 0.1 | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 25 | 26 | 31 | 39 | 38 | 34 | 33 | 32 | 30 | 28 | 26 |
| Relative humidity (%) | 41 | 40 | 36 | 29 | 26 | 26 | 25 | 24 | 24 | 25 | 29 | 34 |
| Wind speed (m/s) | 2.8 | 2.6 | 2.4 | 2.2 | 2.1 | 2.0 | 2.1 | 2.2 | 2.4 | 2.5 | 2.6 | 2.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 25 | 26 | 31 | 39 | 38 |
| Relative humidity (%) | 41 | 40 | 36 | 29 | 26 | 26 |
| Wind speed (m/s) | 2.8 | 2.6 | 2.4 | 2.2 | 2.1 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 34 | 33 | 32 | 30 | 28 | 26 |
| Relative humidity (%) | 25 | 24 | 24 | 25 | 29 | 34 |
| Wind speed (m/s) | 2.1 | 2.2 | 2.4 | 2.5 | 2.6 | 2.7 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.