Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand 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
Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (4th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Sep - 6th Sep 2025
Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand
6 AM5th Sep 2025
6 PM
5 AM6th Sep 2025
AQI
AQI
65AQI
48AQI
In the last 24 hours,
Wualai Road Soi 1's AQI reached its highest point of 65 at 11 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Sep and 6th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand
24°C22/28°C
25°C22/31°C
26°C23/31°C
27°C22/32°C
27°C22/32°C
27°C23/32°C
26°C22/32°C
25°C23/30°C
25°C22/29°C
25°C22/29°C
25°C23/28°C
25°C21/30°C
26°C21/31°C
26°C22/31°C
26°C22/32°C
26°C22/32°C
25°C23/30°C
25°C22/32°C
26°C22/33°C
23°C22/24°C
22°C22/23°C
22°C21/26°C
25°C20/31°C
25°C21/33°C
24°C22/27°C
24°C22/28°C
25°C22/31°C
26°C22/32°C
26°C23/33°C
--°C/°C
--°C/°C
55AQI
50AQI
54AQI
54AQI
2025 Days Vs Air Quality
Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand
7%
17
73%
181
19%
46
1%
3
Total number of days with different AQI categories in last 248 days in 2025 (117 days remaining)
Under WHO’s Safe Air Quality Limits: 7%
Health Risk Level:
Extreme
In 2025, 7% of 248 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
Wualai Road Soi 1, Chiang Mai, Chiang Mai, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
87AQI
91AQI
86AQI
90AQI
94AQI
99AQI
99AQI
108AQI
121AQI
110AQI
90AQI
82AQI
87AQI
93AQI
92AQI
87AQI
85AQI
84AQI
86AQI
99AQI
113AQI
109AQI
114AQI
103AQI
94AQI
93AQI
102AQI
82AQI
104AQI
119AQI
92AQI
93AQI
89AQI
97AQI
111AQI
114AQI
104AQI
106AQI
115AQI
98AQI
89AQI
91AQI
87AQI
83AQI
80AQI
86AQI
102AQI
103AQI
108AQI
104AQI
99AQI
94AQI
94AQI
91AQI
81AQI
80AQI
69AQI
71AQI
75AQI
76AQI
75AQI
87AQI
101AQI
126AQI
110AQI
118AQI
101AQI
94AQI
83AQI
90AQI
88AQI
81AQI
92AQI
122AQI
127AQI
142AQI
130AQI
120AQI
95AQI
122AQI
139AQI
150AQI
148AQI
143AQI
132AQI
146AQI
151AQI
156AQI
160AQI
148AQI
133AQI
130AQI
127AQI
119AQI
117AQI
107AQI
90AQI
85AQI
90AQI
105AQI
92AQI
88AQI
85AQI
75AQI
74AQI
71AQI
70AQI
68AQI
70AQI
72AQI
74AQI
81AQI
80AQI
96AQI
107AQI
105AQI
97AQI
87AQI
81AQI
74AQI
73AQI
66AQI
61AQI
66AQI
62AQI
75AQI
72AQI
78AQI
84AQI
87AQI
84AQI
74AQI
68AQI
65AQI
58AQI
60AQI
58AQI
57AQI
58AQI
60AQI
62AQI
64AQI
60AQI
51AQI
51AQI
50AQI
53AQI
43AQI
49AQI
50AQI
50AQI
45AQI
45AQI
61AQI
70AQI
72AQI
75AQI
68AQI
60AQI
63AQI
55AQI
49AQI
51AQI
49AQI
50AQI
46AQI
42AQI
48AQI
56AQI
56AQI
57AQI
57AQI
53AQI
56AQI
62AQI
62AQI
64AQI
65AQI
64AQI
64AQI
68AQI
71AQI
65AQI
66AQI
65AQI
67AQI
64AQI
62AQI
64AQI
65AQI
66AQI
66AQI
65AQI
63AQI
61AQI
60AQI
61AQI
60AQI
57AQI
56AQI
57AQI
60AQI
59AQI
59AQI
57AQI
57AQI
62AQI
61AQI
60AQI
59AQI
59AQI
63AQI
58AQI
59AQI
58AQI
57AQI
57AQI
55AQI
53AQI
53AQI
57AQI
53AQI
50AQI
50AQI
51AQI
54AQI
49AQI
51AQI
50AQI
52AQI
52AQI
56AQI
56AQI
57AQI
54AQI
54AQI
54AQI
52AQI
51AQI
52AQI
54AQI
55AQI
54AQI
55AQI
55AQI
58AQI
53AQI
97AQI
93AQI
118AQI
92AQI
63AQI
58AQI
62AQI
54AQI
55AQI
No. of days
202579AQI
Highest AQI recorded in
March118AQI
Lowest AQI recorded in
August54AQI
202473AQI
Highest AQI recorded in
April210AQI
Lowest AQI recorded in
June48AQI
2023107AQI
Highest AQI recorded in
April208AQI
Lowest AQI recorded in
July32AQI
202299AQI
Highest AQI recorded in
December114AQI
Lowest AQI recorded in
November86AQI
Most & Least Polluted Years Over the Last 4 Years
Wualai Road Soi 1's annual 2025 AQI (79) shows an average percentage change of -12.8% (improved AQI) compared to previous years: 2022 (99), 2023 (107), 2024 (73).