Rancagua, Libertador General Bernardo O Higgins, Chile Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Rancagua, Libertador General Bernardo O Higgins, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (19th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 78 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Aug - 20th Aug 2025
Rancagua, Libertador General Bernardo O Higgins, Chile
7 AM19th Aug 2025
6 PM
6 AM20th Aug 2025
73AQI
58AQI
70AQI
51AQI
In the last 24 hours,
Rancagua's AQI reached its highest point of 73 at 3 PM during the Day, while the lowest point, 51, was recorded at 4 AM during the Night between 19th Aug and 20th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Rancagua, Libertador General Bernardo O Higgins, Chile
12°C9/19°C
12°C9/19°C
12°C8/19°C
11°C8/17°C
9°C6/14°C
9°C6/13°C
11°C6/18°C
14°C9/20°C
16°C12/22°C
14°C11/18°C
11°C9/13°C
8°C6/10°C
7°C5/10°C
6°C2/12°C
11°C7/18°C
12°C9/18°C
11°C8/17°C
11°C6/17°C
12°C7/19°C
10°C7/16°C
11°C6/17°C
14°C9/21°C
14°C11/18°C
14°C10/21°C
15°C10/21°C
10°C8/11°C
11°C7/18°C
12°C7/17°C
10°C6/16°C
10°C5/16°C
--°C/°C
95AQI
90AQI
115AQI
89AQI
2025 Days Vs Air Quality
Rancagua, Libertador General Bernardo O Higgins, Chile
28%
65
42%
97
24%
55
6%
14
Total number of days with different AQI categories in last 232 days in 2025 (133 days remaining)
Under WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% of 232 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Rancagua, Libertador General Bernardo O Higgins, Chile
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
41AQI
52AQI
42AQI
42AQI
46AQI
39AQI
36AQI
46AQI
47AQI
53AQI
51AQI
41AQI
44AQI
45AQI
31AQI
38AQI
37AQI
37AQI
47AQI
50AQI
44AQI
40AQI
39AQI
46AQI
56AQI
45AQI
55AQI
62AQI
57AQI
48AQI
48AQI
47AQI
40AQI
44AQI
43AQI
45AQI
55AQI
55AQI
72AQI
56AQI
72AQI
63AQI
69AQI
57AQI
51AQI
45AQI
47AQI
54AQI
55AQI
50AQI
51AQI
46AQI
37AQI
42AQI
43AQI
48AQI
63AQI
41AQI
33AQI
29AQI
34AQI
43AQI
46AQI
43AQI
32AQI
30AQI
38AQI
46AQI
45AQI
58AQI
61AQI
58AQI
46AQI
45AQI
55AQI
57AQI
56AQI
48AQI
52AQI
48AQI
64AQI
63AQI
56AQI
65AQI
63AQI
70AQI
59AQI
30AQI
39AQI
47AQI
55AQI
50AQI
57AQI
62AQI
55AQI
57AQI
61AQI
77AQI
57AQI
43AQI
59AQI
66AQI
60AQI
57AQI
63AQI
61AQI
65AQI
69AQI
72AQI
75AQI
78AQI
85AQI
63AQI
46AQI
51AQI
61AQI
65AQI
79AQI
87AQI
91AQI
77AQI
93AQI
74AQI
82AQI
100AQI
109AQI
46AQI
64AQI
85AQI
98AQI
99AQI
121AQI
95AQI
108AQI
121AQI
91AQI
66AQI
57AQI
82AQI
80AQI
107AQI
128AQI
125AQI
114AQI
55AQI
49AQI
92AQI
108AQI
88AQI
101AQI
140AQI
125AQI
156AQI
145AQI
141AQI
148AQI
147AQI
144AQI
145AQI
143AQI
143AQI
72AQI
88AQI
114AQI
71AQI
41AQI
101AQI
114AQI
134AQI
147AQI
122AQI
109AQI
75AQI
125AQI
116AQI
127AQI
151AQI
138AQI
158AQI
147AQI
165AQI
164AQI
159AQI
160AQI
150AQI
98AQI
95AQI
114AQI
114AQI
135AQI
156AQI
163AQI
167AQI
120AQI
151AQI
121AQI
138AQI
140AQI
154AQI
159AQI
144AQI
130AQI
133AQI
134AQI
105AQI
142AQI
153AQI
139AQI
118AQI
123AQI
60AQI
35AQI
40AQI
83AQI
105AQI
85AQI
84AQI
80AQI
125AQI
115AQI
125AQI
104AQI
83AQI
94AQI
101AQI
58AQI
68AQI
90AQI
74AQI
78AQI
45AQI
51AQI
49AQI
63AQI
91AQI
124AQI
136AQI
86AQI
No. of days
202580AQI
Highest AQI recorded in
July136AQI
Lowest AQI recorded in
January45AQI
202465AQI
Highest AQI recorded in
July109AQI
Lowest AQI recorded in
November37AQI
202373AQI
Highest AQI recorded in
July112AQI
Lowest AQI recorded in
November40AQI
202277AQI
Highest AQI recorded in
June124AQI
Lowest AQI recorded in
January38AQI
202175AQI
Highest AQI recorded in
July152AQI
Lowest AQI recorded in
November44AQI
202079AQI
Highest AQI recorded in
July117AQI
Lowest AQI recorded in
December45AQI
Most & Least Polluted Years Over the Last 6 Years
Rancagua's annual 2025 AQI (80) shows an average percentage change of 9.3% (worsened AQI) compared to previous years: 2020 (79), 2021 (75), 2022 (77), 2023 (73), 2024 (65).