La Serena, Coquimbo, Chile Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
La Serena, Coquimbo, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (30th July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 49 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Jul - 31st Jul 2025
La Serena, Coquimbo, Chile
7 AM30th Jul 2025
6 PM
6 AM31st Jul 2025
52AQI
37AQI
52AQI
25AQI
In the last 24 hours,
La Serena's AQI reached its highest point of 52 at 7 AM during the Day, while the lowest point, 25, was recorded at 6 AM during the Night between 30th Jul and 31st Jul 2025.
Day & Night AQI Trend : Jul 2025
La Serena, Coquimbo, Chile
15°C9/22°C
18°C13/24°C
14°C10/18°C
12°C9/16°C
13°C10/17°C
14°C10/18°C
15°C10/20°C
12°C8/16°C
12°C9/15°C
12°C7/16°C
12°C8/16°C
11°C7/15°C
10°C6/14°C
11°C7/14°C
12°C9/17°C
14°C10/20°C
14°C9/20°C
12°C7/16°C
12°C7/17°C
12°C8/17°C
14°C10/19°C
14°C11/19°C
12°C8/17°C
12°C8/16°C
13°C9/17°C
12°C9/14°C
13°C9/17°C
15°C11/20°C
15°C11/19°C
14°C11/16°C
--°C/°C
64AQI
60AQI
70AQI
59AQI
2025 Days Vs Air Quality
La Serena, Coquimbo, Chile
52%
110
48%
101
Total number of days with different AQI categories in last 212 days in 2025 (153 days remaining)
Under WHO’s Safe Air Quality Limits: 52%
Health Risk Level:
Considerable
In 2025, 52% of 212 days were within WHO’s safe air quality limits, and 48% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
La Serena, Coquimbo, Chile
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
42AQI
38AQI
33AQI
31AQI
36AQI
30AQI
30AQI
27AQI
27AQI
32AQI
34AQI
33AQI
32AQI
29AQI
32AQI
37AQI
33AQI
38AQI
42AQI
38AQI
38AQI
33AQI
31AQI
41AQI
52AQI
46AQI
40AQI
40AQI
43AQI
39AQI
36AQI
40AQI
41AQI
38AQI
46AQI
44AQI
44AQI
46AQI
43AQI
42AQI
37AQI
48AQI
54AQI
60AQI
49AQI
43AQI
44AQI
46AQI
45AQI
45AQI
42AQI
35AQI
43AQI
38AQI
35AQI
46AQI
36AQI
35AQI
42AQI
36AQI
26AQI
30AQI
40AQI
39AQI
36AQI
34AQI
41AQI
47AQI
44AQI
43AQI
44AQI
38AQI
32AQI
35AQI
40AQI
50AQI
50AQI
40AQI
39AQI
47AQI
45AQI
48AQI
43AQI
50AQI
60AQI
66AQI
65AQI
60AQI
51AQI
59AQI
52AQI
50AQI
54AQI
50AQI
46AQI
37AQI
42AQI
46AQI
55AQI
48AQI
47AQI
50AQI
49AQI
42AQI
42AQI
47AQI
50AQI
56AQI
51AQI
55AQI
46AQI
51AQI
45AQI
49AQI
50AQI
49AQI
55AQI
50AQI
47AQI
41AQI
46AQI
54AQI
59AQI
56AQI
55AQI
52AQI
54AQI
49AQI
48AQI
53AQI
45AQI
54AQI
60AQI
61AQI
67AQI
66AQI
65AQI
57AQI
54AQI
65AQI
64AQI
59AQI
56AQI
62AQI
64AQI
54AQI
47AQI
49AQI
52AQI
64AQI
76AQI
67AQI
62AQI
81AQI
58AQI
61AQI
62AQI
70AQI
74AQI
83AQI
79AQI
59AQI
51AQI
54AQI
66AQI
67AQI
53AQI
59AQI
62AQI
65AQI
77AQI
76AQI
74AQI
66AQI
64AQI
62AQI
61AQI
71AQI
73AQI
72AQI
82AQI
90AQI
85AQI
81AQI
71AQI
62AQI
51AQI
60AQI
58AQI
55AQI
57AQI
75AQI
75AQI
72AQI
61AQI
58AQI
81AQI
81AQI
72AQI
72AQI
70AQI
81AQI
81AQI
63AQI
61AQI
61AQI
57AQI
55AQI
54AQI
59AQI
49AQI
36AQI
43AQI
44AQI
48AQI
57AQI
67AQI
67AQI
No. of days
202552AQI
Highest AQI recorded in
June67AQI
Lowest AQI recorded in
January36AQI
202437AQI
Highest AQI recorded in
July58AQI
Lowest AQI recorded in
March20AQI
202340AQI
Highest AQI recorded in
February62AQI
Lowest AQI recorded in
December18AQI
202242AQI
Highest AQI recorded in
May55AQI
Lowest AQI recorded in
November29AQI
202145AQI
Highest AQI recorded in
July74AQI
Lowest AQI recorded in
February30AQI
202043AQI
Highest AQI recorded in
June55AQI
Lowest AQI recorded in
March26AQI
Most & Least Polluted Years Over the Last 6 Years
La Serena's annual 2025 AQI (52) shows an average percentage change of 25.6% (worsened AQI) compared to previous years: 2020 (43), 2021 (45), 2022 (42), 2023 (40), 2024 (37).