Calama, Antofagasta, Chile Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Calama, Antofagasta, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 19 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Day & Night AQI Trend: 30th Sep - 1st Oct 2026
Calama, Antofagasta, Chile
7 AM30th Sep 2026
7 PM
6 AM1st Oct 2026
24AQI
14AQI
30AQI
13AQI
In the last 24 hours,
Calama's AQI reached its highest point of 30 at 8 PM during the Night, while the lowest point, 13, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Calama, Antofagasta, Chile
16°C11/24°C
17°C11/24°C
17°C10/23°C
16°C11/23°C
16°C10/23°C
16°C11/22°C
15°C10/22°C
14°C9/20°C
13°C7/19°C
13°C8/21°C
14°C9/22°C
14°C9/20°C
15°C9/23°C
16°C10/24°C
17°C11/25°C
15°C9/21°C
16°C10/21°C
16°C11/22°C
17°C11/22°C
16°C12/22°C
17°C12/23°C
17°C12/23°C
18°C13/25°C
18°C13/24°C
18°C12/23°C
18°C12/24°C
17°C12/22°C
17°C13/21°C
16°C10/21°C
17°C11/23°C
23AQI
19AQI
23AQI
19AQI
2026 Days Vs Air Quality
Calama, Antofagasta, Chile
100%
271
Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 274 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Calama, Antofagasta, Chile
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI (US)
31AQI (US)
31AQI (US)
32AQI (US)
28AQI (US)
35AQI (US)
33AQI (US)
33AQI (US)
29AQI (US)
27AQI (US)
30AQI (US)
30AQI (US)
20AQI (US)
18AQI (US)
17AQI (US)
20AQI (US)
19AQI (US)
19AQI (US)
20AQI (US)
22AQI (US)
19AQI (US)
34AQI (US)
37AQI (US)
39AQI (US)
38AQI (US)
37AQI (US)
32AQI (US)
36AQI (US)
35AQI (US)
31AQI (US)
31AQI (US)
34AQI (US)
36AQI (US)
38AQI (US)
40AQI (US)
39AQI (US)
36AQI (US)
30AQI (US)
36AQI (US)
35AQI (US)
32AQI (US)
36AQI (US)
38AQI (US)
38AQI (US)
42AQI (US)
36AQI (US)
32AQI (US)
36AQI (US)
40AQI (US)
40AQI (US)
37AQI (US)
34AQI (US)
30AQI (US)
32AQI (US)
36AQI (US)
33AQI (US)
30AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
36AQI (US)
38AQI (US)
37AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
38AQI (US)
32AQI (US)
31AQI (US)
34AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
29AQI (US)
30AQI (US)
29AQI (US)
27AQI (US)
32AQI (US)
39AQI (US)
36AQI (US)
33AQI (US)
32AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
27AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
32AQI (US)
27AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
26AQI (US)
32AQI (US)
30AQI (US)
30AQI (US)
29AQI (US)
28AQI (US)
29AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
31AQI (US)
29AQI (US)
26AQI (US)
23AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
25AQI (US)
34AQI (US)
32AQI (US)
25AQI (US)
19AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
40AQI (US)
32AQI (US)
29AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
20AQI (US)
23AQI (US)
19AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
32AQI (US)
25AQI (US)
27AQI (US)
32AQI (US)
27AQI (US)
30AQI (US)
31AQI (US)
27AQI (US)
32AQI (US)
32AQI (US)
31AQI (US)
27AQI (US)
23AQI (US)
28AQI (US)
25AQI (US)
21AQI (US)
31AQI (US)
30AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
35AQI (US)
33AQI (US)
31AQI (US)
32AQI (US)
31AQI (US)
31AQI (US)
33AQI (US)
24AQI (US)
22AQI (US)
23AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
23AQI (US)
21AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
20AQI (US)
23AQI (US)
26AQI (US)
24AQI (US)
20AQI (US)
22AQI (US)
18AQI (US)
18AQI (US)
21AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
23AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
18AQI (US)
19AQI (US)
22AQI (US)
23AQI (US)
18AQI (US)
18AQI (US)
19AQI (US)
21AQI (US)
23AQI (US)
20AQI (US)
24AQI (US)
25AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
25AQI (US)
24AQI (US)
20AQI (US)
19AQI (US)
29AQI (US)
35AQI (US)
32AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
23AQI (US)
21AQI (US)
19AQI (US)
No. of days
202627AQI (US)
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
October19AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
November35AQI (US)
202438AQI (US)
Highest AQI (US) recorded in
December46AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
June46AQI (US)
Lowest AQI (US) recorded in
December30AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
February41AQI (US)
Lowest AQI (US) recorded in
April34AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
August44AQI (US)
Lowest AQI (US) recorded in
June28AQI (US)
202039AQI (US)
Highest AQI (US) recorded in
August45AQI (US)
Lowest AQI (US) recorded in
March32AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Calama's annual 2026 AQI (US) (27) shows an average percentage change of -30.1% (improved AQI (US)) compared to previous years: 2020 (39), 2021 (36), 2022 (37), 2023 (38), 2024 (38), 2025 (45).