Chongqing, Chongqing, China 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
Chongqing, Chongqing, China
AQI Trends: Highest and Lowest
Same Day Analysis (30th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 55 of Moderate 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 Aug - 31st Aug 2025
Chongqing, Chongqing, China
6 AM30th Aug 2025
7 PM
5 AM31st Aug 2025
57AQI
49AQI
62AQI
55AQI
In the last 24 hours,
Chongqing's AQI reached its highest point of 62 at 10 PM during the Night, while the lowest point, 49, was recorded at 4 PM during the Day between 30th Aug and 31st Aug 2025.
Day & Night AQI Trend : Aug 2025
Chongqing, Chongqing, China
32°C28/39°C
33°C28/39°C
34°C28/40°C
35°C29/41°C
35°C27/39°C
31°C26/37°C
31°C27/35°C
32°C28/37°C
32°C29/37°C
31°C27/36°C
24°C23/25°C
26°C23/30°C
29°C25/33°C
30°C26/34°C
29°C26/34°C
27°C25/30°C
30°C25/36°C
31°C27/37°C
31°C28/36°C
31°C26/37°C
31°C27/37°C
30°C27/34°C
30°C27/33°C
29°C26/34°C
31°C26/37°C
32°C27/37°C
32°C28/37°C
32°C27/37°C
26°C24/29°C
26°C23/29°C
--°C/°C
57AQI
48AQI
61AQI
58AQI
2025 Days Vs Air Quality
Chongqing, Chongqing, China
5%
13
65%
158
21%
51
7%
18
0.4%
1
0.4%
1
Total number of days with different AQI categories in last 243 days in 2025 (122 days remaining)
Under WHO’s Safe Air Quality Limits: 5%
Health Risk Level:
Extreme
In 2025, 5% of 243 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Chongqing, Chongqing, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
170AQI
180AQI
184AQI
180AQI
167AQI
170AQI
138AQI
115AQI
103AQI
99AQI
101AQI
114AQI
139AQI
148AQI
148AQI
151AQI
149AQI
160AQI
156AQI
163AQI
168AQI
186AQI
198AQI
148AQI
102AQI
96AQI
105AQI
121AQI
162AQI
167AQI
163AQI
159AQI
123AQI
97AQI
95AQI
98AQI
81AQI
77AQI
70AQI
85AQI
99AQI
118AQI
117AQI
89AQI
94AQI
87AQI
94AQI
88AQI
87AQI
92AQI
85AQI
88AQI
79AQI
79AQI
82AQI
112AQI
103AQI
114AQI
121AQI
140AQI
137AQI
89AQI
83AQI
64AQI
61AQI
68AQI
85AQI
87AQI
93AQI
96AQI
123AQI
114AQI
104AQI
78AQI
72AQI
65AQI
71AQI
77AQI
87AQI
106AQI
131AQI
124AQI
108AQI
108AQI
102AQI
126AQI
93AQI
79AQI
71AQI
77AQI
80AQI
89AQI
87AQI
101AQI
122AQI
126AQI
113AQI
119AQI
119AQI
111AQI
96AQI
370AQI
251AQI
171AQI
143AQI
128AQI
120AQI
112AQI
92AQI
75AQI
82AQI
72AQI
80AQI
71AQI
82AQI
75AQI
78AQI
76AQI
72AQI
70AQI
77AQI
84AQI
104AQI
80AQI
81AQI
98AQI
90AQI
77AQI
84AQI
83AQI
78AQI
82AQI
93AQI
109AQI
116AQI
114AQI
117AQI
123AQI
102AQI
104AQI
95AQI
78AQI
85AQI
89AQI
78AQI
76AQI
64AQI
62AQI
60AQI
59AQI
57AQI
58AQI
59AQI
70AQI
82AQI
75AQI
90AQI
82AQI
68AQI
62AQI
71AQI
70AQI
71AQI
70AQI
71AQI
73AQI
69AQI
67AQI
64AQI
58AQI
63AQI
57AQI
56AQI
51AQI
52AQI
51AQI
54AQI
53AQI
55AQI
52AQI
53AQI
49AQI
42AQI
44AQI
46AQI
49AQI
55AQI
53AQI
55AQI
50AQI
56AQI
53AQI
56AQI
60AQI
59AQI
60AQI
61AQI
62AQI
61AQI
58AQI
54AQI
56AQI
55AQI
48AQI
44AQI
45AQI
47AQI
51AQI
54AQI
58AQI
61AQI
55AQI
59AQI
61AQI
62AQI
66AQI
71AQI
65AQI
60AQI
59AQI
59AQI
60AQI
51AQI
55AQI
58AQI
60AQI
57AQI
51AQI
53AQI
53AQI
49AQI
48AQI
54AQI
53AQI
51AQI
52AQI
51AQI
49AQI
53AQI
52AQI
52AQI
55AQI
147AQI
97AQI
94AQI
113AQI
87AQI
64AQI
53AQI
56AQI
No. of days
202589AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
July53AQI
202489AQI
Highest AQI recorded in
January136AQI
Lowest AQI recorded in
July59AQI
202395AQI
Highest AQI recorded in
January150AQI
Lowest AQI recorded in
July65AQI
202294AQI
Highest AQI recorded in
December134AQI
Lowest AQI recorded in
July63AQI
202194AQI
Highest AQI recorded in
January142AQI
Lowest AQI recorded in
August65AQI
202081AQI
Highest AQI recorded in
December123AQI
Lowest AQI recorded in
July59AQI
Most & Least Polluted Years Over the Last 6 Years
Chongqing's annual 2025 AQI (89) shows an average percentage change of -1.7% (improved AQI) compared to previous years: 2020 (81), 2021 (94), 2022 (94), 2023 (95), 2024 (89).