Mueang Mae Hong Son, Mae Hong Son, 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
Mueang Mae Hong Son, Mae Hong Son, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Sep - 19th Sep 2025
Mueang Mae Hong Son, Mae Hong Son, Thailand
5 AM18th Sep 2025
6 PM
4 AM19th Sep 2025
AQI
AQI
52AQI
24AQI
In the last 24 hours,
Mueang Mae Hong Son's AQI reached its highest point of 52 at 5 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Mueang Mae Hong Son, Mae Hong Son, Thailand
25°C19/33°C
24°C19/31°C
24°C19/33°C
23°C19/31°C
23°C19/30°C
24°C19/34°C
23°C19/31°C
21°C19/23°C
20°C17/22°C
23°C18/30°C
24°C18/33°C
23°C19/28°C
24°C20/28°C
25°C20/30°C
25°C19/31°C
25°C19/34°C
26°C20/34°C
27°C23/34°C
26°C22/33°C
25°C20/34°C
24°C20/33°C
23°C19/28°C
22°C20/26°C
24°C19/30°C
24°C19/33°C
22°C19/28°C
24°C19/31°C
24°C19/34°C
25°C18/34°C
--°C/°C
--°C/°C
55AQI
45AQI
55AQI
52AQI
2025 Days Vs Air Quality
Mueang Mae Hong Son, Mae Hong Son, Thailand
30%
78
53%
138
14%
36
3%
8
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 30%
Health Risk Level:
High
In 2025, 30% 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
Mueang Mae Hong Son, Mae Hong Son, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
72AQI
68AQI
75AQI
81AQI
85AQI
88AQI
86AQI
90AQI
91AQI
91AQI
88AQI
85AQI
90AQI
86AQI
86AQI
83AQI
84AQI
78AQI
83AQI
84AQI
87AQI
86AQI
89AQI
87AQI
89AQI
86AQI
91AQI
91AQI
95AQI
103AQI
92AQI
89AQI
88AQI
93AQI
95AQI
100AQI
101AQI
101AQI
101AQI
96AQI
98AQI
100AQI
96AQI
95AQI
95AQI
99AQI
117AQI
116AQI
111AQI
105AQI
99AQI
94AQI
99AQI
90AQI
81AQI
69AQI
66AQI
68AQI
74AQI
75AQI
80AQI
94AQI
110AQI
128AQI
117AQI
114AQI
105AQI
103AQI
90AQI
98AQI
100AQI
99AQI
114AQI
130AQI
128AQI
140AQI
125AQI
123AQI
115AQI
134AQI
148AQI
161AQI
162AQI
164AQI
157AQI
157AQI
162AQI
157AQI
157AQI
149AQI
146AQI
142AQI
140AQI
147AQI
144AQI
144AQI
120AQI
103AQI
127AQI
130AQI
123AQI
83AQI
82AQI
60AQI
58AQI
62AQI
57AQI
55AQI
64AQI
74AQI
81AQI
85AQI
87AQI
97AQI
99AQI
105AQI
99AQI
80AQI
67AQI
63AQI
59AQI
68AQI
68AQI
67AQI
69AQI
81AQI
92AQI
89AQI
90AQI
94AQI
85AQI
72AQI
67AQI
60AQI
53AQI
51AQI
54AQI
55AQI
55AQI
57AQI
58AQI
55AQI
54AQI
51AQI
53AQI
49AQI
48AQI
42AQI
42AQI
45AQI
48AQI
44AQI
43AQI
51AQI
61AQI
61AQI
60AQI
55AQI
49AQI
51AQI
49AQI
46AQI
50AQI
53AQI
50AQI
50AQI
47AQI
48AQI
45AQI
46AQI
46AQI
47AQI
47AQI
45AQI
42AQI
43AQI
48AQI
43AQI
45AQI
48AQI
47AQI
48AQI
50AQI
49AQI
49AQI
49AQI
48AQI
47AQI
50AQI
52AQI
52AQI
50AQI
52AQI
51AQI
50AQI
47AQI
48AQI
45AQI
43AQI
41AQI
38AQI
34AQI
39AQI
40AQI
40AQI
43AQI
48AQI
49AQI
46AQI
46AQI
50AQI
54AQI
55AQI
55AQI
54AQI
55AQI
53AQI
49AQI
43AQI
34AQI
32AQI
30AQI
37AQI
49AQI
49AQI
48AQI
46AQI
49AQI
47AQI
49AQI
48AQI
53AQI
52AQI
53AQI
50AQI
48AQI
52AQI
48AQI
49AQI
48AQI
51AQI
51AQI
50AQI
52AQI
52AQI
56AQI
38AQI
54AQI
53AQI
57AQI
59AQI
61AQI
57AQI
56AQI
56AQI
54AQI
54AQI
52AQI
46AQI
50AQI
86AQI
94AQI
126AQI
97AQI
62AQI
49AQI
47AQI
48AQI
53AQI
No. of days
202574AQI
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
July47AQI
202462AQI
Highest AQI recorded in
March156AQI
Lowest AQI recorded in
September8AQI
202353AQI
Highest AQI recorded in
March128AQI
Lowest AQI recorded in
July15AQI
202263AQI
Highest AQI recorded in
December69AQI
Lowest AQI recorded in
October58AQI
Most & Least Polluted Years Over the Last 4 Years
Mueang Mae Hong Son's annual 2025 AQI (74) shows an average percentage change of 26.6% (worsened AQI) compared to previous years: 2022 (63), 2023 (53), 2024 (62).