Seongnam, 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!
August Air Quality Analysis
Seongnam, Songnam, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Seongnam, Songnam, Gyeonggi, South Korea
5 AM10th Aug 2025
7 PM
4 AM11th Aug 2025
53AQI
28AQI
61AQI
37AQI
In the last 24 hours,
Seongnam's AQI reached its highest point of 61 at 11 PM during the Night, while the lowest point, 28, was recorded at 6 PM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Seongnam, Songnam, Gyeonggi, South Korea
30°C23/37°C
28°C25/31°C
23°C20/27°C
22°C21/25°C
22°C21/24°C
23°C21/24°C
23°C22/26°C
24°C22/27°C
27°C24/32°C
28°C25/32°C
28°C25/33°C
28°C23/33°C
30°C25/35°C
31°C26/38°C
32°C27/38°C
32°C27/38°C
32°C27/37°C
32°C27/38°C
32°C27/37°C
31°C28/35°C
31°C27/36°C
30°C25/36°C
27°C24/30°C
27°C23/34°C
29°C25/33°C
27°C24/29°C
27°C23/32°C
26°C22/32°C
24°C22/26°C
27°C21/33°C
--°C/°C
50AQI
44AQI
50AQI
45AQI
2025 Days Vs Air Quality
Seongnam, Songnam, Gyeonggi, South Korea
29%
65
63%
139
8%
17
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 29%
Health Risk Level:
Very high
In 2025, 29% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Seongnam, Songnam, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
73AQI
60AQI
59AQI
59AQI
72AQI
102AQI
57AQI
70AQI
40AQI
61AQI
62AQI
80AQI
93AQI
99AQI
55AQI
75AQI
90AQI
82AQI
96AQI
132AQI
145AQI
148AQI
121AQI
107AQI
69AQI
51AQI
62AQI
58AQI
59AQI
52AQI
75AQI
80AQI
83AQI
50AQI
53AQI
41AQI
56AQI
47AQI
47AQI
48AQI
58AQI
80AQI
82AQI
53AQI
95AQI
58AQI
117AQI
49AQI
64AQI
46AQI
57AQI
55AQI
58AQI
53AQI
60AQI
58AQI
75AQI
56AQI
86AQI
106AQI
84AQI
56AQI
44AQI
34AQI
69AQI
88AQI
83AQI
102AQI
117AQI
111AQI
101AQI
97AQI
75AQI
52AQI
67AQI
61AQI
63AQI
77AQI
89AQI
103AQI
108AQI
118AQI
119AQI
130AQI
91AQI
90AQI
58AQI
51AQI
41AQI
55AQI
79AQI
81AQI
82AQI
81AQI
62AQI
64AQI
68AQI
73AQI
65AQI
77AQI
86AQI
61AQI
59AQI
44AQI
54AQI
61AQI
64AQI
74AQI
45AQI
49AQI
49AQI
41AQI
37AQI
56AQI
60AQI
50AQI
41AQI
56AQI
64AQI
55AQI
53AQI
46AQI
46AQI
46AQI
50AQI
43AQI
52AQI
59AQI
46AQI
47AQI
64AQI
63AQI
68AQI
70AQI
64AQI
49AQI
36AQI
53AQI
59AQI
46AQI
46AQI
40AQI
57AQI
39AQI
44AQI
57AQI
70AQI
73AQI
74AQI
63AQI
70AQI
78AQI
86AQI
67AQI
50AQI
54AQI
56AQI
67AQI
54AQI
66AQI
46AQI
48AQI
60AQI
70AQI
50AQI
54AQI
61AQI
63AQI
68AQI
63AQI
42AQI
47AQI
48AQI
59AQI
50AQI
42AQI
49AQI
57AQI
60AQI
46AQI
42AQI
42AQI
36AQI
53AQI
51AQI
51AQI
54AQI
67AQI
64AQI
53AQI
45AQI
45AQI
42AQI
59AQI
52AQI
39AQI
45AQI
35AQI
38AQI
31AQI
34AQI
35AQI
30AQI
35AQI
47AQI
51AQI
42AQI
38AQI
59AQI
64AQI
52AQI
52AQI
59AQI
62AQI
62AQI
50AQI
53AQI
46AQI
48AQI
51AQI
52AQI
79AQI
63AQI
82AQI
61AQI
55AQI
57AQI
46AQI
54AQI
No. of days
202563AQI
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
July46AQI
202456AQI
Highest AQI recorded in
January77AQI
Lowest AQI recorded in
September37AQI
202361AQI
Highest AQI recorded in
February93AQI
Lowest AQI recorded in
September40AQI
202262AQI
Highest AQI recorded in
January87AQI
Lowest AQI recorded in
August26AQI
202165AQI
Highest AQI recorded in
March94AQI
Lowest AQI recorded in
September31AQI
202063AQI
Highest AQI recorded in
December84AQI
Lowest AQI recorded in
September42AQI
Most & Least Polluted Years Over the Last 6 Years
Seongnam's annual 2025 AQI (63) shows an average percentage change of 2.5% (worsened AQI) compared to previous years: 2020 (63), 2021 (65), 2022 (62), 2023 (61), 2024 (56).