Chaloem Phra Kiat, Nan, Sainyabuli, Laos 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
Chaloem Phra Kiat, Nan, Sainyabuli, Laos
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 42 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Chaloem Phra Kiat, Nan, Sainyabuli, Laos
6 AM20th Sep 2025
6 PM
5 AM21st Sep 2025
53AQI
26AQI
46AQI
32AQI
In the last 24 hours,
Chaloem Phra Kiat's AQI reached its highest point of 53 at 6 AM during the Day, while the lowest point, 26, was recorded at 4 PM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Chaloem Phra Kiat, Nan, Sainyabuli, Laos
21°C18/25°C
21°C20/25°C
21°C19/28°C
22°C18/27°C
19°C17/21°C
18°C17/18°C
19°C17/21°C
20°C17/24°C
21°C18/24°C
21°C19/25°C
23°C20/27°C
22°C20/28°C
22°C20/25°C
21°C18/27°C
21°C17/27°C
21°C17/25°C
21°C18/25°C
21°C19/26°C
21°C18/27°C
19°C16/21°C
20°C18/23°C
20°C17/24°C
20°C17/24°C
21°C18/26°C
22°C17/28°C
20°C18/25°C
21°C18/25°C
21°C18/26°C
21°C18/25°C
21°C19/25°C
--°C/°C
51AQI
38AQI
50AQI
48AQI
2025 Days Vs Air Quality
Chaloem Phra Kiat, Nan, Sainyabuli, Laos
33%
88
42%
110
23%
61
2%
4
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 33%
Health Risk Level:
High
In 2025, 33% of 264 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
Chaloem Phra Kiat, Nan, Sainyabuli, Laos
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
91AQI
90AQI
92AQI
99AQI
103AQI
107AQI
106AQI
123AQI
95AQI
103AQI
95AQI
94AQI
97AQI
92AQI
100AQI
108AQI
105AQI
108AQI
96AQI
93AQI
101AQI
96AQI
94AQI
93AQI
98AQI
104AQI
83AQI
97AQI
107AQI
103AQI
113AQI
119AQI
119AQI
110AQI
105AQI
105AQI
120AQI
105AQI
98AQI
87AQI
100AQI
91AQI
100AQI
108AQI
110AQI
99AQI
116AQI
99AQI
101AQI
105AQI
105AQI
102AQI
102AQI
102AQI
77AQI
76AQI
72AQI
75AQI
82AQI
84AQI
89AQI
99AQI
114AQI
123AQI
120AQI
112AQI
101AQI
92AQI
90AQI
104AQI
104AQI
107AQI
114AQI
128AQI
115AQI
119AQI
93AQI
87AQI
101AQI
113AQI
124AQI
146AQI
135AQI
140AQI
128AQI
144AQI
154AQI
156AQI
159AQI
153AQI
142AQI
146AQI
138AQI
149AQI
148AQI
134AQI
106AQI
100AQI
130AQI
125AQI
121AQI
98AQI
98AQI
73AQI
74AQI
71AQI
67AQI
71AQI
70AQI
74AQI
68AQI
72AQI
86AQI
94AQI
99AQI
107AQI
112AQI
94AQI
86AQI
83AQI
77AQI
71AQI
63AQI
67AQI
68AQI
70AQI
72AQI
79AQI
78AQI
79AQI
79AQI
74AQI
73AQI
70AQI
66AQI
61AQI
71AQI
64AQI
63AQI
65AQI
68AQI
67AQI
66AQI
64AQI
66AQI
63AQI
63AQI
60AQI
59AQI
60AQI
59AQI
59AQI
61AQI
62AQI
66AQI
72AQI
71AQI
74AQI
69AQI
69AQI
65AQI
61AQI
61AQI
63AQI
60AQI
47AQI
27AQI
35AQI
37AQI
38AQI
43AQI
46AQI
48AQI
44AQI
46AQI
46AQI
48AQI
44AQI
42AQI
42AQI
43AQI
37AQI
34AQI
31AQI
30AQI
33AQI
42AQI
38AQI
43AQI
46AQI
50AQI
50AQI
51AQI
49AQI
48AQI
46AQI
43AQI
42AQI
42AQI
43AQI
46AQI
47AQI
48AQI
49AQI
43AQI
41AQI
46AQI
43AQI
42AQI
42AQI
43AQI
50AQI
53AQI
53AQI
52AQI
49AQI
54AQI
52AQI
49AQI
47AQI
46AQI
47AQI
49AQI
45AQI
48AQI
46AQI
47AQI
46AQI
44AQI
46AQI
47AQI
47AQI
48AQI
45AQI
46AQI
44AQI
45AQI
45AQI
43AQI
44AQI
44AQI
48AQI
50AQI
47AQI
49AQI
49AQI
47AQI
52AQI
50AQI
52AQI
53AQI
53AQI
49AQI
47AQI
49AQI
49AQI
47AQI
48AQI
48AQI
47AQI
45AQI
45AQI
42AQI
100AQI
100AQI
118AQI
101AQI
68AQI
53AQI
43AQI
47AQI
48AQI
No. of days
202576AQI
Highest AQI recorded in
March118AQI
Lowest AQI recorded in
July43AQI
202461AQI
Highest AQI recorded in
March115AQI
Lowest AQI recorded in
July41AQI
202386AQI
Highest AQI recorded in
March232AQI
Lowest AQI recorded in
July24AQI
202267AQI
Highest AQI recorded in
December82AQI
Lowest AQI recorded in
November52AQI
Most & Least Polluted Years Over the Last 4 Years
Chaloem Phra Kiat's annual 2025 AQI (76) shows an average percentage change of 8.9% (worsened AQI) compared to previous years: 2022 (67), 2023 (86), 2024 (61).