Climate averages 1991–2020
Tacna weather
in August.
A mild, very dry month: the 11th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Tacna: daytime highs average 19.4°C and nights cool to about 12.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 3.6 mm of rain on fewer than one day, which makes August a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 30 min on an average August day.
The nearest other city in this atlas is Arica (51 km away). In August its highs average 17.2°C, 2.3°C cooler than Tacna, with 20 mm of rain.
Among the 24 cities listed in Peru, Tacna ranks 19th of 24 for the warmest August highs and 13th of 24 for the driest August (rainfall, lowest first). The mean August high of those 24 cities is 22.8°C; Tacna is 3.4°C cooler than that mean.
From August to September, average highs rise by 1.1°C to 20.5°C, and monthly rainfall falls from 3.6 mm to 2.4 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Tacna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C17.9°C | 17.9°C | 23 | 6.5 | 13.113 h |
| February | 26.9°C18.5°C | 18.5°C | 23 | 6.9 | 12.713 h |
| March | 26.5°C18.0°C | 18.0°C | 14 | 4.1 | 12.212 h |
| April | 24.3°C16.3°C | 16.3°C | 1.9 | 0.4 | 11.712 h |
| May | 21.6°C15.0°C | 15.0°C | 4.1 | 0.4 | 11.311 h |
| June | 19.5°C13.8°C | 13.8°C | 4.5 | 0.4 | 11.111 h |
| July | 18.9°C13.0°C | 13.0°C | 3.9 | 0.5 | 11.211 h |
| August, selected | 19.4°C12.9°C | 12.9°C | 3.6 | 0.5 | 11.512 h |
| September | 20.5°C13.1°C | 13.1°C | 2.4 | 0.2 | 12.012 h |
| October | 21.9°C13.6°C | 13.6°C | 1.1 | 0.0 | 12.512 h |
| November | 23.7°C14.6°C | 14.6°C | 1.1 | 0.2 | 12.913 h |
| December | 25.3°C16.3°C | 16.3°C | 5.6 | 1.4 | 13.213 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Arica in AugustChile · 51 kmHigh 17.2°C · Low 12.3°C · 20 mm rain
- Puno in AugustPeru · 243 kmHigh 15.3°C · Low 0.4°C · 20 mm rain
- Iquique (approximate) in AugustChile · 245 kmHigh 22.1°C · Low 13.5°C · 10 mm rain
- Alto Hospicio in AugustChile · 251 kmHigh 19.5°C · Low 10.2°C · 0.5 mm rain
- Viacha in AugustBolivia · 257 kmHigh 14.5°C · Low -0.7°C · 16 mm rain
- La Paz in AugustBolivia · 280 kmHigh 13.7°C · Low 1.1°C · 21 mm rain
- Juliaca in AugustPeru · 280 kmHigh 15.4°C · Low -0.8°C · 18 mm rain
- Oruro in AugustBolivia · 334 kmHigh 14.2°C · Low -1.7°C · 12 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Tacna) is explained once on the Tacna year overview and on the Sources, method and limits page.