Songnam, Gyeonggi, South Korea 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
Songnam, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (27th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 27th Sep - 28th Sep 2025
Songnam, Gyeonggi, South Korea
6 AM27th Sep 2025
6 PM
5 AM28th Sep 2025
48AQI
30AQI
41AQI
33AQI
In the last 24 hours,
Songnam's AQI reached its highest point of 48 at 6 AM during the Day, while the lowest point, 30, was recorded at 2 PM during the Day between 27th Sep and 28th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Songnam, Gyeonggi, South Korea
27°C25/32°C
28°C24/32°C
28°C24/33°C
25°C23/28°C
26°C22/31°C
27°C22/32°C
24°C22/29°C
27°C22/33°C
26°C23/31°C
26°C23/29°C
25°C21/31°C
25°C22/28°C
25°C19/31°C
26°C20/32°C
24°C21/29°C
22°C20/25°C
24°C20/29°C
26°C21/31°C
24°C22/28°C
22°C19/24°C
21°C19/24°C
19°C17/22°C
18°C17/21°C
21°C16/26°C
21°C17/25°C
22°C19/27°C
21°C19/23°C
22°C20/27°C
22°C18/28°C
23°C18/28°C
--°C/°C
43AQI
37AQI
45AQI
37AQI
2025 Days Vs Air Quality
Songnam, Gyeonggi, South Korea
36%
97
59%
158
6%
15
Total number of days with different AQI categories in last 271 days in 2025 (94 days remaining)
Under WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 271 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
Songnam, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
73AQI
59AQI
59AQI
59AQI
72AQI
102AQI
57AQI
71AQI
42AQI
59AQI
60AQI
78AQI
92AQI
97AQI
56AQI
74AQI
87AQI
80AQI
93AQI
130AQI
143AQI
147AQI
121AQI
103AQI
69AQI
51AQI
62AQI
58AQI
59AQI
53AQI
72AQI
76AQI
78AQI
52AQI
53AQI
42AQI
54AQI
49AQI
47AQI
49AQI
57AQI
76AQI
80AQI
52AQI
91AQI
58AQI
115AQI
50AQI
63AQI
48AQI
56AQI
54AQI
58AQI
54AQI
58AQI
56AQI
74AQI
56AQI
85AQI
104AQI
83AQI
57AQI
46AQI
37AQI
68AQI
87AQI
82AQI
100AQI
113AQI
109AQI
100AQI
94AQI
75AQI
52AQI
68AQI
61AQI
62AQI
76AQI
87AQI
101AQI
106AQI
116AQI
117AQI
129AQI
91AQI
89AQI
60AQI
50AQI
44AQI
54AQI
78AQI
78AQI
77AQI
80AQI
62AQI
63AQI
67AQI
73AQI
65AQI
74AQI
82AQI
60AQI
60AQI
44AQI
53AQI
60AQI
64AQI
75AQI
46AQI
50AQI
48AQI
41AQI
36AQI
57AQI
62AQI
51AQI
42AQI
55AQI
64AQI
56AQI
55AQI
45AQI
46AQI
45AQI
48AQI
39AQI
52AQI
59AQI
47AQI
48AQI
65AQI
64AQI
69AQI
71AQI
64AQI
51AQI
39AQI
55AQI
59AQI
46AQI
47AQI
43AQI
58AQI
42AQI
47AQI
58AQI
72AQI
75AQI
74AQI
62AQI
70AQI
79AQI
88AQI
69AQI
51AQI
56AQI
57AQI
68AQI
56AQI
66AQI
50AQI
51AQI
59AQI
70AQI
50AQI
56AQI
61AQI
62AQI
68AQI
64AQI
44AQI
50AQI
53AQI
59AQI
52AQI
44AQI
50AQI
58AQI
60AQI
47AQI
44AQI
43AQI
37AQI
52AQI
50AQI
50AQI
53AQI
65AQI
65AQI
55AQI
47AQI
47AQI
44AQI
59AQI
49AQI
40AQI
47AQI
36AQI
38AQI
31AQI
35AQI
37AQI
34AQI
38AQI
47AQI
52AQI
43AQI
40AQI
59AQI
64AQI
55AQI
53AQI
59AQI
62AQI
62AQI
51AQI
53AQI
46AQI
49AQI
53AQI
54AQI
46AQI
56AQI
51AQI
43AQI
46AQI
44AQI
42AQI
44AQI
52AQI
46AQI
47AQI
47AQI
49AQI
50AQI
54AQI
52AQI
47AQI
50AQI
53AQI
48AQI
48AQI
52AQI
44AQI
51AQI
51AQI
36AQI
36AQI
43AQI
41AQI
48AQI
54AQI
51AQI
51AQI
48AQI
40AQI
44AQI
43AQI
42AQI
37AQI
29AQI
30AQI
26AQI
24AQI
26AQI
26AQI
32AQI
38AQI
51AQI
50AQI
79AQI
62AQI
81AQI
61AQI
55AQI
58AQI
47AQI
50AQI
40AQI
No. of days
202560AQI
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
September40AQI
202457AQI
Highest AQI recorded in
January76AQI
Lowest AQI recorded in
September38AQI
202363AQI
Highest AQI recorded in
March91AQI
Lowest AQI recorded in
September42AQI
202264AQI
Highest AQI recorded in
February87AQI
Lowest AQI recorded in
August23AQI
202164AQI
Highest AQI recorded in
March91AQI
Lowest AQI recorded in
September33AQI
202062AQI
Highest AQI recorded in
December82AQI
Lowest AQI recorded in
September42AQI
Most & Least Polluted Years Over the Last 6 Years
Songnam's annual 2025 AQI (60) shows an average percentage change of -3.6% (improved AQI) compared to previous years: 2020 (62), 2021 (64), 2022 (64), 2023 (63), 2024 (57).