Kaihua, Yunnan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Kaihua, Yunnan, China
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 47 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Kaihua, Yunnan, China
5 AM17th Sep 2025
6 PM
4 AM18th Sep 2025
54AQI
41AQI
55AQI
48AQI
In the last 24 hours,
Kaihua's AQI reached its highest point of 55 at 9 PM during the Night, while the lowest point, 41, was recorded at 10 AM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Kaihua, Yunnan, China
20°C15/25°C
20°C17/24°C
21°C19/25°C
19°C18/21°C
19°C17/23°C
20°C16/26°C
19°C15/25°C
17°C14/21°C
19°C15/24°C
19°C15/24°C
19°C14/26°C
19°C14/25°C
19°C15/24°C
19°C14/26°C
20°C16/26°C
21°C17/27°C
21°C17/28°C
21°C16/27°C
21°C17/26°C
20°C15/27°C
21°C15/28°C
19°C16/24°C
19°C18/22°C
21°C18/26°C
21°C17/26°C
21°C18/25°C
20°C17/26°C
20°C16/25°C
19°C16/24°C
20°C16/25°C
--°C/°C
50AQI
39AQI
50AQI
45AQI
2025 Days Vs Air Quality
Kaihua, Yunnan, China
36%
93
51%
131
13%
33
0.7%
2
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 261 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Kaihua, Yunnan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
89AQI
92AQI
114AQI
121AQI
108AQI
141AQI
143AQI
152AQI
131AQI
89AQI
91AQI
90AQI
93AQI
110AQI
127AQI
129AQI
140AQI
152AQI
119AQI
116AQI
142AQI
138AQI
101AQI
90AQI
85AQI
62AQI
72AQI
85AQI
93AQI
82AQI
83AQI
82AQI
88AQI
58AQI
79AQI
104AQI
85AQI
68AQI
67AQI
56AQI
71AQI
72AQI
92AQI
75AQI
62AQI
58AQI
64AQI
49AQI
43AQI
47AQI
45AQI
39AQI
40AQI
37AQI
26AQI
33AQI
29AQI
37AQI
48AQI
45AQI
50AQI
67AQI
70AQI
84AQI
59AQI
66AQI
60AQI
58AQI
56AQI
63AQI
60AQI
69AQI
91AQI
99AQI
68AQI
83AQI
61AQI
78AQI
78AQI
97AQI
125AQI
124AQI
118AQI
120AQI
112AQI
113AQI
138AQI
135AQI
94AQI
83AQI
88AQI
97AQI
110AQI
138AQI
140AQI
93AQI
103AQI
97AQI
105AQI
107AQI
103AQI
100AQI
120AQI
105AQI
95AQI
80AQI
70AQI
66AQI
67AQI
71AQI
62AQI
65AQI
76AQI
81AQI
72AQI
82AQI
90AQI
72AQI
75AQI
71AQI
75AQI
72AQI
62AQI
54AQI
58AQI
64AQI
68AQI
70AQI
72AQI
62AQI
54AQI
56AQI
61AQI
72AQI
53AQI
57AQI
54AQI
49AQI
51AQI
51AQI
57AQI
57AQI
68AQI
63AQI
57AQI
50AQI
46AQI
41AQI
45AQI
38AQI
40AQI
42AQI
41AQI
47AQI
56AQI
49AQI
60AQI
58AQI
52AQI
57AQI
62AQI
63AQI
59AQI
56AQI
62AQI
59AQI
48AQI
48AQI
42AQI
45AQI
45AQI
41AQI
30AQI
34AQI
34AQI
33AQI
34AQI
33AQI
39AQI
32AQI
35AQI
34AQI
34AQI
36AQI
36AQI
37AQI
47AQI
48AQI
49AQI
49AQI
47AQI
48AQI
54AQI
54AQI
57AQI
52AQI
53AQI
48AQI
55AQI
53AQI
56AQI
50AQI
42AQI
38AQI
38AQI
38AQI
36AQI
47AQI
58AQI
61AQI
61AQI
56AQI
55AQI
57AQI
53AQI
50AQI
55AQI
55AQI
48AQI
44AQI
43AQI
45AQI
47AQI
50AQI
52AQI
59AQI
56AQI
47AQI
45AQI
50AQI
47AQI
49AQI
43AQI
45AQI
41AQI
42AQI
42AQI
44AQI
44AQI
43AQI
43AQI
45AQI
45AQI
47AQI
47AQI
51AQI
44AQI
48AQI
54AQI
56AQI
55AQI
51AQI
46AQI
44AQI
42AQI
44AQI
50AQI
50AQI
47AQI
109AQI
59AQI
85AQI
90AQI
57AQI
47AQI
47AQI
48AQI
49AQI
No. of days
202567AQI
Highest AQI recorded in
January109AQI
Lowest AQI recorded in
June47AQI
202466AQI
Highest AQI recorded in
April120AQI
Lowest AQI recorded in
February8AQI
202377AQI
Highest AQI recorded in
April126AQI
Lowest AQI recorded in
August47AQI
202272AQI
Highest AQI recorded in
April98AQI
Lowest AQI recorded in
June47AQI
202171AQI
Highest AQI recorded in
March121AQI
Lowest AQI recorded in
July45AQI
202064AQI
Highest AQI recorded in
March144AQI
Lowest AQI recorded in
July40AQI
Most & Least Polluted Years Over the Last 6 Years
Kaihua's annual 2025 AQI (67) shows an average percentage change of -4.4% (improved AQI) compared to previous years: 2020 (64), 2021 (71), 2022 (72), 2023 (77), 2024 (66).