Phonsavan, Xiangkhouang, 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
Phonsavan, Xiangkhouang, Laos
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Phonsavan, Xiangkhouang, Laos
5 AM25th Sep 2026
6 PM
4 AM26th Sep 2026
46AQI
21AQI
38AQI
21AQI
In the last 24 hours,
Phonsavan's AQI reached its highest point of 46 at 7 AM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Phonsavan, Xiangkhouang, Laos
21°C19/24°C
20°C19/21°C
19°C17/20°C
20°C16/26°C
20°C17/25°C
21°C17/29°C
21°C17/28°C
20°C17/27°C
20°C17/26°C
20°C17/25°C
20°C18/24°C
21°C17/27°C
21°C18/28°C
21°C16/27°C
19°C16/25°C
20°C15/26°C
20°C15/26°C
18°C18/20°C
18°C17/19°C
19°C18/23°C
19°C18/23°C
19°C18/22°C
20°C17/26°C
21°C17/27°C
21°C16/29°C
21°C15/29°C
21°C16/29°C
21°C17/29°C
21°C17/27°C
20°C17/25°C
52AQI
37AQI
44AQI
36AQI
2026 Days Vs Air Quality
Phonsavan, Xiangkhouang, Laos
41%
109
38%
102
13%
34
8%
20
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 41%
Health Risk Level:
Significant
In 2026, 41% of 269 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Phonsavan, Xiangkhouang, Laos
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
92AQI (US)
79AQI (US)
61AQI (US)
64AQI (US)
74AQI (US)
69AQI (US)
53AQI (US)
63AQI (US)
81AQI (US)
86AQI (US)
88AQI (US)
101AQI (US)
99AQI (US)
116AQI (US)
108AQI (US)
99AQI (US)
105AQI (US)
94AQI (US)
91AQI (US)
90AQI (US)
90AQI (US)
73AQI (US)
64AQI (US)
72AQI (US)
80AQI (US)
93AQI (US)
93AQI (US)
88AQI (US)
96AQI (US)
101AQI (US)
106AQI (US)
88AQI (US)
74AQI (US)
61AQI (US)
86AQI (US)
96AQI (US)
107AQI (US)
104AQI (US)
84AQI (US)
50AQI (US)
78AQI (US)
98AQI (US)
96AQI (US)
97AQI (US)
100AQI (US)
102AQI (US)
115AQI (US)
101AQI (US)
72AQI (US)
61AQI (US)
61AQI (US)
82AQI (US)
120AQI (US)
127AQI (US)
112AQI (US)
81AQI (US)
61AQI (US)
67AQI (US)
74AQI (US)
88AQI (US)
109AQI (US)
133AQI (US)
143AQI (US)
121AQI (US)
71AQI (US)
73AQI (US)
84AQI (US)
86AQI (US)
51AQI (US)
80AQI (US)
81AQI (US)
80AQI (US)
82AQI (US)
74AQI (US)
76AQI (US)
91AQI (US)
105AQI (US)
123AQI (US)
131AQI (US)
128AQI (US)
126AQI (US)
124AQI (US)
144AQI (US)
153AQI (US)
142AQI (US)
155AQI (US)
146AQI (US)
126AQI (US)
153AQI (US)
160AQI (US)
175AQI (US)
179AQI (US)
176AQI (US)
168AQI (US)
169AQI (US)
171AQI (US)
176AQI (US)
173AQI (US)
170AQI (US)
169AQI (US)
158AQI (US)
166AQI (US)
167AQI (US)
169AQI (US)
170AQI (US)
171AQI (US)
134AQI (US)
150AQI (US)
137AQI (US)
147AQI (US)
148AQI (US)
83AQI (US)
81AQI (US)
83AQI (US)
104AQI (US)
82AQI (US)
70AQI (US)
71AQI (US)
71AQI (US)
82AQI (US)
95AQI (US)
62AQI (US)
60AQI (US)
74AQI (US)
84AQI (US)
47AQI (US)
39AQI (US)
72AQI (US)
80AQI (US)
64AQI (US)
58AQI (US)
39AQI (US)
91AQI (US)
91AQI (US)
77AQI (US)
61AQI (US)
75AQI (US)
80AQI (US)
75AQI (US)
50AQI (US)
60AQI (US)
61AQI (US)
51AQI (US)
43AQI (US)
48AQI (US)
34AQI (US)
44AQI (US)
44AQI (US)
67AQI (US)
75AQI (US)
59AQI (US)
47AQI (US)
22AQI (US)
23AQI (US)
31AQI (US)
25AQI (US)
30AQI (US)
26AQI (US)
15AQI (US)
30AQI (US)
24AQI (US)
19AQI (US)
19AQI (US)
26AQI (US)
25AQI (US)
27AQI (US)
34AQI (US)
41AQI (US)
32AQI (US)
35AQI (US)
39AQI (US)
35AQI (US)
38AQI (US)
43AQI (US)
44AQI (US)
45AQI (US)
28AQI (US)
24AQI (US)
15AQI (US)
23AQI (US)
29AQI (US)
40AQI (US)
29AQI (US)
36AQI (US)
45AQI (US)
47AQI (US)
29AQI (US)
42AQI (US)
39AQI (US)
51AQI (US)
19AQI (US)
39AQI (US)
43AQI (US)
52AQI (US)
51AQI (US)
58AQI (US)
57AQI (US)
61AQI (US)
47AQI (US)
28AQI (US)
37AQI (US)
33AQI (US)
25AQI (US)
33AQI (US)
35AQI (US)
31AQI (US)
27AQI (US)
31AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
32AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
30AQI (US)
38AQI (US)
38AQI (US)
37AQI (US)
32AQI (US)
40AQI (US)
47AQI (US)
36AQI (US)
25AQI (US)
35AQI (US)
32AQI (US)
33AQI (US)
45AQI (US)
57AQI (US)
38AQI (US)
38AQI (US)
30AQI (US)
32AQI (US)
35AQI (US)
40AQI (US)
45AQI (US)
43AQI (US)
53AQI (US)
58AQI (US)
49AQI (US)
41AQI (US)
30AQI (US)
37AQI (US)
31AQI (US)
39AQI (US)
58AQI (US)
66AQI (US)
65AQI (US)
55AQI (US)
26AQI (US)
21AQI (US)
23AQI (US)
28AQI (US)
32AQI (US)
39AQI (US)
41AQI (US)
53AQI (US)
58AQI (US)
37AQI (US)
28AQI (US)
86AQI (US)
88AQI (US)
111AQI (US)
143AQI (US)
64AQI (US)
34AQI (US)
37AQI (US)
34AQI (US)
42AQI (US)
No. of days
202671AQI (US)
Highest AQI (US) recorded in
April143AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202569AQI (US)
Highest AQI (US) recorded in
January99AQI (US)
Lowest AQI (US) recorded in
September41AQI (US)
202457AQI (US)
Highest AQI (US) recorded in
April172AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
2023140AQI (US)
Highest AQI (US) recorded in
March196AQI (US)
Lowest AQI (US) recorded in
June80AQI (US)
2022145AQI (US)
Highest AQI (US) recorded in
October180AQI (US)
Lowest AQI (US) recorded in
November134AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Phonsavan's annual 2026 AQI (US) (71) shows an average percentage change of -18.2% (improved AQI (US)) compared to previous years: 2022 (145), 2023 (140), 2024 (57), 2025 (69).