Chengdu, Sichuan, China 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
Chengdu, Sichuan, China
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 41 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
Chengdu, Sichuan, China
6 AM30th Sep 2026
7 PM
5 AM1st Oct 2026
121AQI
83AQI
63AQI
22AQI
In the last 24 hours,
Chengdu's AQI reached its highest point of 121 at 3 PM during the Day, while the lowest point, 22, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Chengdu, Sichuan, China
28°C22/30°C
26°C23/29°C
27°C24/29°C
28°C23/32°C
28°C24/32°C
26°C23/31°C
24°C21/28°C
19°C17/23°C
16°C16/17°C
17°C16/20°C
17°C15/18°C
19°C16/23°C
19°C16/24°C
16°C15/16°C
17°C15/20°C
19°C17/23°C
20°C18/24°C
19°C18/19°C
19°C17/21°C
21°C18/23°C
19°C18/21°C
19°C18/24°C
19°C18/19°C
21°C18/25°C
22°C20/26°C
22°C21/23°C
20°C19/21°C
22°C20/27°C
21°C20/23°C
19°C17/21°C
74AQI
52AQI
76AQI
54AQI
2026 Days Vs Air Quality
Chengdu, Sichuan, China
18%
49
57%
157
19%
52
6%
16
Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)
Under WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2026, 18% of 274 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
Chengdu, Sichuan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
83AQI (US)
88AQI (US)
36AQI (US)
70AQI (US)
123AQI (US)
98AQI (US)
129AQI (US)
138AQI (US)
152AQI (US)
168AQI (US)
185AQI (US)
191AQI (US)
187AQI (US)
170AQI (US)
157AQI (US)
171AQI (US)
177AQI (US)
184AQI (US)
105AQI (US)
68AQI (US)
89AQI (US)
121AQI (US)
112AQI (US)
147AQI (US)
146AQI (US)
125AQI (US)
133AQI (US)
157AQI (US)
146AQI (US)
97AQI (US)
140AQI (US)
138AQI (US)
135AQI (US)
153AQI (US)
152AQI (US)
158AQI (US)
156AQI (US)
115AQI (US)
95AQI (US)
84AQI (US)
98AQI (US)
115AQI (US)
134AQI (US)
143AQI (US)
154AQI (US)
125AQI (US)
76AQI (US)
131AQI (US)
135AQI (US)
134AQI (US)
129AQI (US)
138AQI (US)
149AQI (US)
137AQI (US)
84AQI (US)
93AQI (US)
80AQI (US)
112AQI (US)
82AQI (US)
34AQI (US)
60AQI (US)
65AQI (US)
70AQI (US)
84AQI (US)
116AQI (US)
102AQI (US)
78AQI (US)
44AQI (US)
71AQI (US)
108AQI (US)
99AQI (US)
97AQI (US)
32AQI (US)
73AQI (US)
65AQI (US)
50AQI (US)
54AQI (US)
82AQI (US)
92AQI (US)
99AQI (US)
104AQI (US)
69AQI (US)
92AQI (US)
93AQI (US)
66AQI (US)
98AQI (US)
84AQI (US)
87AQI (US)
34AQI (US)
40AQI (US)
67AQI (US)
79AQI (US)
88AQI (US)
97AQI (US)
121AQI (US)
85AQI (US)
53AQI (US)
60AQI (US)
73AQI (US)
68AQI (US)
61AQI (US)
78AQI (US)
61AQI (US)
62AQI (US)
68AQI (US)
75AQI (US)
51AQI (US)
85AQI (US)
119AQI (US)
113AQI (US)
44AQI (US)
64AQI (US)
80AQI (US)
93AQI (US)
119AQI (US)
117AQI (US)
105AQI (US)
35AQI (US)
51AQI (US)
92AQI (US)
94AQI (US)
58AQI (US)
48AQI (US)
72AQI (US)
98AQI (US)
108AQI (US)
75AQI (US)
63AQI (US)
92AQI (US)
91AQI (US)
103AQI (US)
108AQI (US)
100AQI (US)
132AQI (US)
88AQI (US)
94AQI (US)
100AQI (US)
94AQI (US)
96AQI (US)
115AQI (US)
124AQI (US)
117AQI (US)
91AQI (US)
84AQI (US)
91AQI (US)
67AQI (US)
77AQI (US)
70AQI (US)
79AQI (US)
86AQI (US)
97AQI (US)
87AQI (US)
94AQI (US)
67AQI (US)
97AQI (US)
91AQI (US)
98AQI (US)
49AQI (US)
40AQI (US)
41AQI (US)
59AQI (US)
35AQI (US)
70AQI (US)
73AQI (US)
106AQI (US)
114AQI (US)
75AQI (US)
66AQI (US)
70AQI (US)
80AQI (US)
74AQI (US)
34AQI (US)
29AQI (US)
35AQI (US)
31AQI (US)
17AQI (US)
29AQI (US)
54AQI (US)
74AQI (US)
46AQI (US)
38AQI (US)
81AQI (US)
70AQI (US)
54AQI (US)
71AQI (US)
66AQI (US)
77AQI (US)
96AQI (US)
86AQI (US)
76AQI (US)
86AQI (US)
40AQI (US)
42AQI (US)
31AQI (US)
59AQI (US)
53AQI (US)
61AQI (US)
36AQI (US)
67AQI (US)
52AQI (US)
64AQI (US)
78AQI (US)
75AQI (US)
93AQI (US)
93AQI (US)
79AQI (US)
63AQI (US)
44AQI (US)
38AQI (US)
70AQI (US)
38AQI (US)
45AQI (US)
33AQI (US)
44AQI (US)
49AQI (US)
43AQI (US)
94AQI (US)
69AQI (US)
59AQI (US)
83AQI (US)
69AQI (US)
84AQI (US)
83AQI (US)
41AQI (US)
56AQI (US)
77AQI (US)
86AQI (US)
76AQI (US)
48AQI (US)
36AQI (US)
58AQI (US)
76AQI (US)
94AQI (US)
116AQI (US)
97AQI (US)
85AQI (US)
89AQI (US)
67AQI (US)
83AQI (US)
81AQI (US)
52AQI (US)
56AQI (US)
71AQI (US)
65AQI (US)
85AQI (US)
120AQI (US)
133AQI (US)
124AQI (US)
113AQI (US)
117AQI (US)
100AQI (US)
37AQI (US)
25AQI (US)
36AQI (US)
49AQI (US)
39AQI (US)
54AQI (US)
37AQI (US)
38AQI (US)
59AQI (US)
58AQI (US)
70AQI (US)
34AQI (US)
47AQI (US)
55AQI (US)
82AQI (US)
80AQI (US)
63AQI (US)
78AQI (US)
86AQI (US)
48AQI (US)
44AQI (US)
86AQI (US)
41AQI (US)
132AQI (US)
123AQI (US)
76AQI (US)
79AQI (US)
91AQI (US)
62AQI (US)
64AQI (US)
70AQI (US)
69AQI (US)
41AQI (US)
No. of days
202685AQI (US)
Highest AQI (US) recorded in
January132AQI (US)
Lowest AQI (US) recorded in
October41AQI (US)
202589AQI (US)
Highest AQI (US) recorded in
December145AQI (US)
Lowest AQI (US) recorded in
August55AQI (US)
202484AQI (US)
Highest AQI (US) recorded in
December123AQI (US)
Lowest AQI (US) recorded in
July49AQI (US)
202396AQI (US)
Highest AQI (US) recorded in
January152AQI (US)
Lowest AQI (US) recorded in
August62AQI (US)
2022105AQI (US)
Highest AQI (US) recorded in
January139AQI (US)
Lowest AQI (US) recorded in
August68AQI (US)
2021100AQI (US)
Highest AQI (US) recorded in
January145AQI (US)
Lowest AQI (US) recorded in
September66AQI (US)
202090AQI (US)
Highest AQI (US) recorded in
December127AQI (US)
Lowest AQI (US) recorded in
July68AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Chengdu's annual 2026 AQI (US) (85) shows an average percentage change of -9.06% (improved AQI (US)) compared to previous years: 2020 (90), 2021 (100), 2022 (105), 2023 (96), 2024 (84), 2025 (89).