Climate averages 1991–2020
Calama weather
in April.
A warm, very dry month: the 7th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Calama: daytime highs average 23.6°C and nights cool to about 5.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 2.0 mm of rain on fewer than one day, which makes April a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average April day.
The nearest other city in this atlas is Antofagasta (201 km away). In April its highs average 20.6°C, 3.0°C cooler than Calama, with 8.9 mm of rain.
Among the 40 cities listed in Chile, Calama ranks joint 5th of 40 for the warmest April highs and 3rd of 40 for the driest April (rainfall, lowest first). The mean April high of those 40 cities is 20.5°C; Calama is 3.1°C warmer than that mean.
From April to May, average highs fall by 1.9°C to 21.8°C, and monthly rainfall rises from 2.0 mm to 4.5 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Antofagasta in AprilChile · 201 kmHigh 20.6°C · Low 14.7°C · 8.9 mm rain
- Alto Hospicio in AprilChile · 272 kmHigh 22.6°C · Low 14.2°C · 0.1 mm rain
- Iquique (approximate) in AprilChile · 280 kmHigh 25.3°C · Low 17.9°C · 1.4 mm rain
- Tarija in AprilBolivia · 444 kmHigh 20.7°C · Low 11.4°C · 72 mm rain
- Potosí in AprilBolivia · 459 kmHigh 14.1°C · Low 1.9°C · 35 mm rain
- Arica in AprilChile · 465 kmHigh 23.6°C · Low 16.7°C · 6.9 mm rain
- San Ramón de la Nueva Orán in AprilArgentina · 477 kmHigh 24.5°C · Low 17.8°C · 93 mm rain
- Tacna in AprilPeru · 513 kmHigh 24.3°C · Low 16.3°C · 1.9 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.