Calama weather in July

In July, Calama sees average daytime highs of 19°C and overnight lows near 3°C, with 3 mm of precipitation across 0.6 wet days and about 10.8 hours of daylight. It is the 12th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 81% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of July to 10 h 54 min by month's end. Set against the rest of the year, July is Calama's 5th-clearest and 6th-windiest month. For the whole year in context, see Calama's year-round climate.

Daytime high
19°
12th warmest
Overnight low
1st coldest
Precipitation
3 mm
0.6 wet days
Daylight
10 h 42 min
8:19 AM – 7:04 PM
Cloud cover
17%
5th clearest
Wind
12 km/h
6th windiest
Solar energy
5.13 kWh/m²
Travel score
8.2
out of 10

Calama is city in Chile.

Air quality
Good
PM2.5 6.8 µg/m³ · 2019
Density
4,838/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical July day in Calama reaches about 19°C in the afternoon and slips back to 3°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 22°C. Set against its neighbours, July runs on par with June and about 1°C cooler than August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1193
2193
3193
4193
5193
6193
7193
8193
9193
10193
11193
12193
13193
14193
15193
16193
17193
18193
19193
20193
21193
22193
23193
24193
25193
26193
27193
28193
29193
30193
31193

How July really feels in Calama

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in July is cold — wind chill drags the overnight "feels like" below the raw low.

Calama weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 10°92.413.28.2
Feb22° / 10°112.712.88.2
Mar22° / 61.112.28.7
Apr22° / 20.311.58.9
May20° / 50.510.98.6
Jun19° / 40.310.78.3
Jul19° / 30.610.88.2
Aug20° / 30.411.28.7
Sep21° / 10.211.99.0
Oct22° / 0012.59.2
Nov23° / 0013.19.3
Dec23° / 10.313.48.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 7% of July, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38713
48713
58614
68614
78614
88713
98713
108713
118812
128812
138812
148812
158911
168911
178911
188911
199010
209010
219010
22919
23919
24919
25919
26928
27928
28928
29928
30928
31919

Chance of precipitation in July

Any precipitation

Calama gets around 3 mm of rain and snow over 0.6 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 2% and peaks near 3% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
12
23
33
43
53
63
73
82
92
102
112
122
132
142
152
162
172
182
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in July

Winds average 12 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 36 min at the start of July to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over July. Sunrise moves from 8:20 AM to 8:14 AM, and sunset from 6:58 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:206:58
210.68:206:59
310.68:206:59
410.78:206:59
510.78:207:00
610.78:207:00
710.78:207:00
810.78:207:01
910.78:207:01
1010.78:207:01
1110.78:207:02
1210.78:207:02
1310.78:197:03
1410.78:197:03
1510.78:197:03
1610.78:197:04
1710.88:197:04
1810.88:187:05
1910.88:187:05
2010.88:187:05
2110.88:187:06
2210.88:177:06
2310.88:177:07
2410.88:177:07
2510.98:167:08
2610.98:167:08
2710.98:157:08
2810.98:157:09
2910.98:157:09
3010.98:147:10
3110.98:147:10

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.13 kWh/m².

For context, solar energy here swings from a low near 4.88 kWh/m² to a high of 9.11 kWh/m² in December across the year — July's 5.13 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in July

Is July a good time to visit Calama?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.2
Sightseeing
10th-best month of the year
3.3
Beach & pool
12th-best month of the year

July is one of the better times to visit Calama for general sightseeing.

What to pack for Calama in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Calama sees daytime highs around 19°C and nights near 3°C. Worth packing: a warm layer and sun protection.

a warm layersun protection

UV index in Calama in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Calama peaks around January 1 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeJan 1UV 17Jul 11UV 7
UV index (midday)Level
Jan17Extreme
Feb16Extreme
Mar15Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul7High
Aug10Very high
Sep13Extreme
Oct15Extreme
Nov16Extreme
Dec17Extreme
Location & terrain

Where is Calama?

Calama sits at 22.5°S, 68.9°W, 2,275 m above sea level, in Chile. The nearest listed city is San Pedro de Atacama, 90 km away.

Pozo AlmonteAlto HospicioIquiqueUyuniVillazón

Topography around Calama

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Calama.

Within 3 km, the terrain around Calama has only modest variations in elevation — a maximum elevation change of 119 m around an average of 2,268 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,554 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,822 m.

The land around Calama is covered by artificial surfaces (56%) and bare terrain (29%) within 3 km, bare terrain (94%) within 16 km, and bare terrain (99%) within 80 km.

3 km
119 m
16 km
1,554 m
80 km
3,822 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: San Pedro de Atacama 90 km · Tocopilla 137 km · Antofagasta 201 km · Pozo Almonte 261 km · Alto Hospicio 272 km · Iquique 280 km · Uyuni 311 km · Villazón 345 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Calama (-22.4567°, -68.9237°, elevation 2,275 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).