Climate averages 1991–2020
Calama weather
in August.
A mild, very dry month: the 9th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Calama: daytime highs average 21.9°C and nights cool to about 2.0°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 2.5 mm of rain on fewer than one day, which makes August a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 21 min on an average August day.
The nearest other city in this atlas is Antofagasta (201 km away). In August its highs average 18.1°C, 3.9°C cooler than Calama, with 7.5 mm of rain.
Among the 40 cities listed in Chile, Calama ranks 3rd of 40 for the warmest August highs and 2nd of 40 for the driest August (rainfall, lowest first). The mean August high of those 40 cities is 15.5°C; Calama is 6.4°C warmer than that mean.
From August to September, average highs rise by 1.4°C to 23.3°C, and monthly rainfall falls from 2.5 mm to under 1 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
Calama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.8°C9.5°C | 9.5°C | 8.7 | 2.3 | 13.313 h |
| February | 24.6°C9.4°C | 9.4°C | 11 | 2.7 | 12.913 h |
| March | 24.5°C7.7°C | 7.7°C | 5.6 | 1.0 | 12.212 h |
| April | 23.6°C5.0°C | 5.0°C | 2.0 | 0.3 | 11.612 h |
| May | 21.8°C2.8°C | 2.8°C | 4.5 | 0.5 | 11.111 h |
| June | 20.6°C1.6°C | 1.6°C | 3.5 | 0.3 | 10.811 h |
| July | 20.3°C1.3°C | 1.3°C | 3.3 | 0.6 | 10.911 h |
| August, selected | 21.9°C2.0°C | 2.0°C | 2.5 | 0.4 | 11.311 h |
| September | 23.3°C3.3°C | 3.3°C | 0.6 | 0.2 | 11.912 h |
| October | 24.5°C4.9°C | 4.9°C | 0.1 | 0.1 | 12.613 h |
| November | 25.0°C5.8°C | 5.8°C | 0.1 | 0.0 | 13.213 h |
| December | 25.2°C7.5°C | 7.5°C | 1.3 | 0.3 | 13.513 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
- Antofagasta in AugustChile · 201 kmHigh 18.1°C · Low 11.3°C · 7.5 mm rain
- Alto Hospicio in AugustChile · 272 kmHigh 19.5°C · Low 10.2°C · 0.5 mm rain
- Iquique (approximate) in AugustChile · 280 kmHigh 22.1°C · Low 13.5°C · 10 mm rain
- Tarija in AugustBolivia · 444 kmHigh 20.8°C · Low 5.9°C · 15 mm rain
- Potosí in AugustBolivia · 459 kmHigh 14.6°C · Low -2.1°C · 10 mm rain
- Arica in AugustChile · 465 kmHigh 17.2°C · Low 12.3°C · 20 mm rain
- San Ramón de la Nueva Orán in AugustArgentina · 477 kmHigh 25.0°C · Low 12.4°C · 8.3 mm rain
- Tacna in AugustPeru · 513 kmHigh 19.4°C · Low 12.9°C · 3.6 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 Calama) is explained once on the Calama year overview and on the Sources, method and limits page.