Phu Kha, Pua, Nan, 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
Phu Kha, Pua, Nan, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 34 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Phu Kha, Pua, Nan, Thailand
6 AM22nd Sep 2025
6 PM
5 AM23rd Sep 2025
AQI
AQI
54AQI
15AQI
In the last 24 hours,
Phu Kha's AQI reached its highest point of 54 at 8 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Phu Kha, Pua, Nan, Thailand
25°C19/33°C
25°C18/34°C
21°C19/24°C
21°C19/23°C
22°C20/23°C
24°C18/33°C
23°C18/31°C
23°C19/29°C
23°C18/31°C
23°C18/28°C
25°C19/31°C
26°C21/33°C
26°C19/35°C
26°C20/34°C
25°C19/34°C
26°C20/33°C
24°C19/32°C
23°C20/27°C
23°C19/29°C
25°C21/32°C
26°C22/31°C
26°C21/33°C
26°C19/34°C
22°C19/27°C
24°C18/32°C
25°C19/33°C
24°C19/33°C
24°C19/31°C
25°C20/30°C
--°C/°C
--°C/°C
50AQI
37AQI
49AQI
46AQI
2025 Days Vs Air Quality
Phu Kha, Pua, Nan, Thailand
31%
82
52%
137
16%
41
2%
4
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 31%
Health Risk Level:
High
In 2025, 31% of 265 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
Phu Kha, Pua, Nan, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
90AQI
87AQI
95AQI
99AQI
98AQI
103AQI
102AQI
111AQI
94AQI
102AQI
94AQI
96AQI
98AQI
90AQI
100AQI
107AQI
106AQI
108AQI
90AQI
90AQI
98AQI
92AQI
88AQI
86AQI
92AQI
91AQI
83AQI
95AQI
105AQI
101AQI
110AQI
109AQI
111AQI
105AQI
101AQI
104AQI
118AQI
101AQI
94AQI
83AQI
97AQI
89AQI
93AQI
97AQI
81AQI
76AQI
80AQI
71AQI
70AQI
69AQI
71AQI
72AQI
72AQI
70AQI
59AQI
56AQI
54AQI
56AQI
63AQI
64AQI
66AQI
71AQI
80AQI
87AQI
88AQI
81AQI
75AQI
70AQI
68AQI
75AQI
74AQI
89AQI
107AQI
123AQI
114AQI
124AQI
94AQI
87AQI
101AQI
111AQI
124AQI
148AQI
131AQI
138AQI
127AQI
140AQI
153AQI
151AQI
159AQI
154AQI
144AQI
145AQI
138AQI
149AQI
145AQI
133AQI
105AQI
99AQI
131AQI
124AQI
117AQI
96AQI
96AQI
73AQI
73AQI
73AQI
65AQI
68AQI
68AQI
73AQI
67AQI
70AQI
84AQI
92AQI
99AQI
103AQI
109AQI
91AQI
86AQI
83AQI
76AQI
64AQI
60AQI
62AQI
62AQI
64AQI
69AQI
72AQI
72AQI
74AQI
67AQI
69AQI
69AQI
69AQI
60AQI
57AQI
59AQI
59AQI
59AQI
58AQI
57AQI
57AQI
60AQI
61AQI
60AQI
60AQI
58AQI
56AQI
56AQI
57AQI
55AQI
56AQI
55AQI
56AQI
59AQI
60AQI
57AQI
60AQI
57AQI
59AQI
61AQI
60AQI
57AQI
59AQI
58AQI
53AQI
46AQI
50AQI
41AQI
43AQI
47AQI
49AQI
53AQI
48AQI
47AQI
46AQI
50AQI
46AQI
45AQI
45AQI
47AQI
46AQI
45AQI
42AQI
39AQI
42AQI
47AQI
44AQI
48AQI
50AQI
53AQI
52AQI
52AQI
51AQI
50AQI
47AQI
45AQI
45AQI
44AQI
45AQI
48AQI
47AQI
48AQI
49AQI
44AQI
45AQI
49AQI
46AQI
44AQI
45AQI
45AQI
52AQI
53AQI
53AQI
53AQI
49AQI
53AQI
52AQI
47AQI
45AQI
45AQI
46AQI
48AQI
45AQI
48AQI
47AQI
47AQI
45AQI
44AQI
46AQI
46AQI
47AQI
48AQI
46AQI
44AQI
45AQI
47AQI
46AQI
43AQI
44AQI
46AQI
48AQI
50AQI
48AQI
50AQI
50AQI
40AQI
52AQI
51AQI
52AQI
54AQI
53AQI
49AQI
46AQI
49AQI
49AQI
48AQI
48AQI
47AQI
45AQI
43AQI
43AQI
36AQI
34AQI
97AQI
83AQI
106AQI
100AQI
63AQI
52AQI
47AQI
47AQI
47AQI
No. of days
202572AQI
Highest AQI recorded in
March106AQI
Lowest AQI recorded in
July47AQI
202463AQI
Highest AQI recorded in
January89AQI
Lowest AQI recorded in
July38AQI
202391AQI
Highest AQI recorded in
November115AQI
Lowest AQI recorded in
December87AQI
202264AQI
Highest AQI recorded in
October78AQI
Lowest AQI recorded in
November51AQI
Most & Least Polluted Years Over the Last 4 Years
Phu Kha's annual 2025 AQI (72) shows an average percentage change of 2.3% (worsened AQI) compared to previous years: 2022 (64), 2023 (91), 2024 (63).