Mueang Mae Hong Son District, 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 District, Mae Hong Son, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (18th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Mueang Mae Hong Son District, Mae Hong Son, Thailand
5 AM19th Sep 2025
6 PM
4 AM20th Sep 2025
AQI
AQI
51AQI
29AQI
In the last 24 hours,
Mueang Mae Hong Son District's AQI reached its highest point of 51 at 9 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Mueang Mae Hong Son District, Mae Hong Son, Thailand
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°C18/22°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
24°C19/34°C
--°C/°C
--°C/°C
53AQI
45AQI
53AQI
50AQI
2025 Days Vs Air Quality
Mueang Mae Hong Son District, Mae Hong Son, Thailand
39%
102
49%
128
11%
30
0.3%
1
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Under WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2025, 39% of 262 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 District, Mae Hong Son, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
77AQI
69AQI
71AQI
78AQI
85AQI
91AQI
95AQI
107AQI
86AQI
89AQI
85AQI
80AQI
92AQI
86AQI
88AQI
84AQI
82AQI
87AQI
83AQI
89AQI
93AQI
82AQI
85AQI
84AQI
81AQI
89AQI
78AQI
87AQI
92AQI
96AQI
95AQI
93AQI
91AQI
89AQI
95AQI
98AQI
104AQI
95AQI
91AQI
83AQI
91AQI
95AQI
95AQI
93AQI
73AQI
74AQI
76AQI
68AQI
64AQI
64AQI
65AQI
64AQI
69AQI
72AQI
60AQI
52AQI
53AQI
54AQI
59AQI
58AQI
62AQI
64AQI
70AQI
73AQI
72AQI
73AQI
74AQI
71AQI
68AQI
70AQI
68AQI
83AQI
93AQI
116AQI
120AQI
124AQI
111AQI
110AQI
107AQI
120AQI
124AQI
143AQI
123AQI
117AQI
106AQI
116AQI
142AQI
144AQI
151AQI
145AQI
141AQI
144AQI
136AQI
133AQI
140AQI
136AQI
109AQI
96AQI
122AQI
119AQI
114AQI
91AQI
85AQI
62AQI
62AQI
62AQI
55AQI
57AQI
63AQI
69AQI
69AQI
71AQI
83AQI
88AQI
89AQI
96AQI
102AQI
82AQI
72AQI
68AQI
60AQI
63AQI
62AQI
60AQI
62AQI
73AQI
83AQI
96AQI
88AQI
101AQI
90AQI
79AQI
68AQI
70AQI
49AQI
51AQI
51AQI
50AQI
46AQI
48AQI
52AQI
54AQI
49AQI
43AQI
50AQI
45AQI
51AQI
47AQI
45AQI
41AQI
47AQI
42AQI
43AQI
51AQI
60AQI
62AQI
60AQI
59AQI
52AQI
52AQI
47AQI
38AQI
45AQI
42AQI
42AQI
41AQI
39AQI
37AQI
39AQI
38AQI
40AQI
41AQI
42AQI
38AQI
37AQI
36AQI
41AQI
39AQI
41AQI
41AQI
41AQI
42AQI
41AQI
47AQI
43AQI
41AQI
43AQI
42AQI
44AQI
44AQI
43AQI
45AQI
47AQI
44AQI
45AQI
43AQI
46AQI
44AQI
43AQI
40AQI
39AQI
35AQI
38AQI
40AQI
36AQI
36AQI
42AQI
45AQI
41AQI
39AQI
43AQI
47AQI
50AQI
51AQI
49AQI
47AQI
50AQI
48AQI
42AQI
33AQI
33AQI
44AQI
47AQI
43AQI
44AQI
44AQI
44AQI
46AQI
43AQI
45AQI
46AQI
49AQI
48AQI
47AQI
45AQI
45AQI
48AQI
47AQI
45AQI
46AQI
48AQI
50AQI
49AQI
51AQI
52AQI
54AQI
39AQI
54AQI
52AQI
54AQI
58AQI
61AQI
55AQI
53AQI
55AQI
53AQI
48AQI
50AQI
47AQI
48AQI
44AQI
86AQI
78AQI
101AQI
94AQI
60AQI
44AQI
42AQI
46AQI
52AQI
No. of days
202568AQI
Highest AQI recorded in
March101AQI
Lowest AQI recorded in
July42AQI
202450AQI
Highest AQI recorded in
April127AQI
Lowest AQI recorded in
October28AQI
2023104AQI
Highest AQI recorded in
March173AQI
Lowest AQI recorded in
June5AQI
202266AQI
Highest AQI recorded in
December81AQI
Lowest AQI recorded in
November50AQI
Most & Least Polluted Years Over the Last 4 Years
Mueang Mae Hong Son District's annual 2025 AQI (68) shows an average percentage change of 1.08% (worsened AQI) compared to previous years: 2022 (66), 2023 (104), 2024 (50).