Tacna, Peru climate
BWh Hot desert
Tacna has a mildly seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is February with an average daily high near 29°C, while the coldest is July averaging around 10°C at night. Precipitation totals about 25 mm a year and is strongly seasonal — August alone averages 4 mm while April 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)Tacna climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 27 | 25 | 22 | 20 | 19 | 20 | 21 | 23 | 25 | 26 |
| Avg temp (°C) | 23 | 23 | 22 | 20 | 18 | 16 | 15 | 15 | 16 | 18 | 19 | 21 |
| Avg low (°C) | 17 | 18 | 17 | 15 | 13 | 11 | 10 | 11 | 11 | 13 | 14 | 16 |
| Precipitation (mm) | 4 | 2 | 1 | 0 | 1 | 2 | 4 | 4 | 4 | 1 | 1 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 27 | 25 | 22 | 20 |
| Avg temp (°C) | 23 | 23 | 22 | 20 | 18 | 16 |
| Avg low (°C) | 17 | 18 | 17 | 15 | 13 | 11 |
| Precipitation (mm) | 4 | 2 | 1 | 0 | 1 | 2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 20 | 21 | 23 | 25 | 26 |
| Avg temp (°C) | 15 | 15 | 16 | 18 | 19 | 21 |
| Avg low (°C) | 10 | 11 | 11 | 13 | 14 | 16 |
| Precipitation (mm) | 4 | 4 | 4 | 1 | 1 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 57 | 50 | 56 | 68 | 75 | 77 | 78 | 75 | 73 | 66 | 61 |
| Relative humidity (%) | 68 | 68 | 64 | 52 | 38 | 34 | 32 | 32 | 34 | 40 | 47 | 59 |
| Wind speed (km/h) | 8.9 | 8.7 | 8.2 | 7.6 | 7.2 | 6.9 | 7.0 | 7.6 | 8.2 | 8.6 | 8.9 | 8.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 57 | 50 | 56 | 68 | 75 |
| Relative humidity (%) | 68 | 68 | 64 | 52 | 38 | 34 |
| Wind speed (km/h) | 8.9 | 8.7 | 8.2 | 7.6 | 7.2 | 6.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 78 | 75 | 73 | 66 | 61 |
| Relative humidity (%) | 32 | 32 | 34 | 40 | 47 | 59 |
| Wind speed (km/h) | 7.0 | 7.6 | 8.2 | 8.6 | 8.9 | 8.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at Jorge Basadre, about 1 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.