Rancagua I, 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 I, Rancagua, Libertador General Bernardo O Higgins, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 59 of Moderate air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Aug - 20th Aug 2025
Rancagua I, Rancagua, Libertador General Bernardo O Higgins, Chile
7 AM19th Aug 2025
6 PM
6 AM20th Aug 2025
75AQI
58AQI
71AQI
51AQI
In the last 24 hours,
Rancagua I's AQI reached its highest point of 75 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 I, Rancagua, Libertador General Bernardo O Higgins, Chile
--°C/°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
11°C6/18°C
94AQI
89AQI
114AQI
86AQI
2025 Days Vs Air Quality
Rancagua I, Rancagua, Libertador General Bernardo O Higgins, Chile
28%
64
43%
99
24%
55
6%
14
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% of 233 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 I, 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
55AQI
44AQI
43AQI
45AQI
39AQI
38AQI
45AQI
46AQI
51AQI
49AQI
42AQI
45AQI
47AQI
31AQI
38AQI
38AQI
37AQI
47AQI
53AQI
46AQI
40AQI
40AQI
46AQI
57AQI
45AQI
63AQI
63AQI
58AQI
47AQI
45AQI
45AQI
39AQI
43AQI
44AQI
45AQI
55AQI
55AQI
73AQI
57AQI
72AQI
65AQI
72AQI
58AQI
54AQI
48AQI
47AQI
53AQI
54AQI
51AQI
53AQI
46AQI
37AQI
40AQI
43AQI
48AQI
65AQI
41AQI
32AQI
28AQI
33AQI
44AQI
46AQI
45AQI
31AQI
30AQI
38AQI
44AQI
43AQI
57AQI
61AQI
58AQI
47AQI
46AQI
57AQI
57AQI
57AQI
49AQI
53AQI
50AQI
64AQI
61AQI
55AQI
65AQI
61AQI
69AQI
66AQI
32AQI
43AQI
51AQI
55AQI
50AQI
57AQI
62AQI
53AQI
56AQI
61AQI
75AQI
56AQI
43AQI
58AQI
65AQI
61AQI
58AQI
63AQI
61AQI
66AQI
66AQI
70AQI
74AQI
78AQI
86AQI
63AQI
46AQI
49AQI
61AQI
64AQI
81AQI
89AQI
91AQI
80AQI
92AQI
70AQI
82AQI
101AQI
110AQI
45AQI
66AQI
87AQI
99AQI
99AQI
125AQI
96AQI
108AQI
119AQI
91AQI
67AQI
58AQI
82AQI
79AQI
107AQI
125AQI
125AQI
112AQI
55AQI
48AQI
93AQI
108AQI
86AQI
103AQI
136AQI
123AQI
156AQI
148AQI
140AQI
149AQI
148AQI
145AQI
143AQI
139AQI
145AQI
69AQI
84AQI
111AQI
71AQI
40AQI
97AQI
109AQI
133AQI
148AQI
120AQI
106AQI
76AQI
125AQI
115AQI
127AQI
150AQI
140AQI
158AQI
148AQI
166AQI
164AQI
160AQI
159AQI
151AQI
95AQI
92AQI
115AQI
116AQI
136AQI
156AQI
163AQI
167AQI
122AQI
152AQI
124AQI
139AQI
140AQI
152AQI
158AQI
144AQI
125AQI
126AQI
133AQI
105AQI
140AQI
153AQI
137AQI
115AQI
121AQI
60AQI
35AQI
39AQI
84AQI
104AQI
85AQI
84AQI
82AQI
123AQI
115AQI
124AQI
103AQI
82AQI
93AQI
101AQI
59AQI
68AQI
90AQI
75AQI
76AQI
59AQI
46AQI
52AQI
49AQI
63AQI
91AQI
123AQI
135AQI
84AQI
No. of days
202580AQI
Highest AQI recorded in
July135AQI
Lowest AQI recorded in
January46AQI
202462AQI
Highest AQI recorded in
May101AQI
Lowest AQI recorded in
November37AQI
202376AQI
Highest AQI recorded in
July115AQI
Lowest AQI recorded in
November39AQI
202276AQI
Highest AQI recorded in
May119AQI
Lowest AQI recorded in
January41AQI
202178AQI
Highest AQI recorded in
July149AQI
Lowest AQI recorded in
October50AQI
202077AQI
Highest AQI recorded in
July115AQI
Lowest AQI recorded in
December44AQI
Most & Least Polluted Years Over the Last 6 Years
Rancagua I's annual 2025 AQI (80) shows an average percentage change of 9.5% (worsened AQI) compared to previous years: 2020 (77), 2021 (78), 2022 (76), 2023 (76), 2024 (62).