Suwon, Gyeonggi, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Suwon, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 80 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Suwon, Gyeonggi, South Korea
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
80AQI
47AQI
51AQI
39AQI
In the last 24 hours,
Suwon's AQI reached its highest point of 80 at 6 AM during the Day, while the lowest point, 39, was recorded at 8 PM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Suwon, Gyeonggi, South Korea
24°C22/28°C
27°C22/32°C
27°C24/31°C
25°C23/29°C
24°C21/29°C
24°C21/28°C
25°C21/31°C
26°C21/31°C
23°C20/27°C
22°C20/25°C
24°C21/28°C
25°C21/30°C
24°C22/28°C
22°C20/25°C
21°C20/25°C
18°C17/20°C
19°C17/21°C
21°C17/26°C
21°C18/24°C
22°C19/26°C
21°C19/24°C
21°C19/25°C
22°C18/27°C
23°C19/28°C
20°C18/21°C
20°C18/23°C
20°C17/24°C
20°C18/25°C
21°C18/26°C
20°C18/22°C
--°C/°C
46AQI
42AQI
47AQI
44AQI
2025 Days Vs Air Quality
Suwon, Gyeonggi, South Korea
29%
80
64%
178
6%
17
0.3%
1
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 29%
Health Risk Level:
Very high
In 2025, 29% of 277 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
Suwon, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
78AQI
59AQI
62AQI
63AQI
72AQI
103AQI
58AQI
72AQI
43AQI
57AQI
59AQI
81AQI
92AQI
106AQI
58AQI
79AQI
86AQI
84AQI
91AQI
134AQI
145AQI
154AQI
129AQI
105AQI
73AQI
55AQI
66AQI
59AQI
62AQI
53AQI
75AQI
77AQI
87AQI
54AQI
54AQI
46AQI
59AQI
50AQI
49AQI
51AQI
60AQI
75AQI
83AQI
53AQI
96AQI
58AQI
117AQI
53AQI
66AQI
49AQI
58AQI
56AQI
60AQI
56AQI
61AQI
59AQI
74AQI
61AQI
85AQI
109AQI
83AQI
59AQI
47AQI
37AQI
79AQI
96AQI
91AQI
112AQI
122AQI
120AQI
111AQI
100AQI
82AQI
60AQI
76AQI
66AQI
73AQI
82AQI
94AQI
108AQI
112AQI
122AQI
125AQI
132AQI
95AQI
94AQI
60AQI
52AQI
48AQI
62AQI
81AQI
90AQI
84AQI
89AQI
77AQI
71AQI
74AQI
77AQI
71AQI
81AQI
92AQI
66AQI
64AQI
49AQI
59AQI
63AQI
69AQI
81AQI
51AQI
61AQI
54AQI
47AQI
36AQI
64AQI
64AQI
56AQI
44AQI
61AQI
71AQI
60AQI
61AQI
52AQI
51AQI
48AQI
55AQI
43AQI
56AQI
63AQI
52AQI
60AQI
71AQI
73AQI
75AQI
76AQI
70AQI
54AQI
50AQI
58AQI
64AQI
47AQI
52AQI
49AQI
65AQI
49AQI
53AQI
66AQI
79AQI
82AQI
81AQI
77AQI
84AQI
86AQI
94AQI
74AQI
60AQI
60AQI
60AQI
72AQI
60AQI
67AQI
53AQI
53AQI
63AQI
78AQI
60AQI
58AQI
65AQI
64AQI
68AQI
65AQI
48AQI
57AQI
68AQI
71AQI
62AQI
51AQI
57AQI
64AQI
62AQI
50AQI
47AQI
45AQI
42AQI
52AQI
51AQI
49AQI
53AQI
67AQI
67AQI
57AQI
50AQI
51AQI
49AQI
62AQI
54AQI
44AQI
51AQI
39AQI
43AQI
36AQI
39AQI
41AQI
40AQI
44AQI
49AQI
57AQI
47AQI
46AQI
61AQI
68AQI
59AQI
59AQI
59AQI
61AQI
61AQI
49AQI
51AQI
45AQI
49AQI
56AQI
54AQI
54AQI
58AQI
50AQI
40AQI
43AQI
39AQI
38AQI
41AQI
51AQI
44AQI
46AQI
47AQI
47AQI
49AQI
52AQI
49AQI
44AQI
51AQI
52AQI
46AQI
45AQI
50AQI
41AQI
50AQI
51AQI
40AQI
38AQI
39AQI
41AQI
48AQI
54AQI
50AQI
50AQI
46AQI
39AQI
43AQI
46AQI
45AQI
37AQI
32AQI
34AQI
29AQI
25AQI
28AQI
29AQI
36AQI
41AQI
62AQI
57AQI
40AQI
53AQI
59AQI
71AQI
64AQI
80AQI
81AQI
65AQI
87AQI
67AQI
62AQI
63AQI
51AQI
49AQI
43AQI
72AQI
No. of days
202563AQI
Highest AQI recorded in
March87AQI
Lowest AQI recorded in
September43AQI
202462AQI
Highest AQI recorded in
January76AQI
Lowest AQI recorded in
September42AQI
202368AQI
Highest AQI recorded in
March93AQI
Lowest AQI recorded in
September48AQI
202265AQI
Highest AQI recorded in
February83AQI
Lowest AQI recorded in
August25AQI
202166AQI
Highest AQI recorded in
March95AQI
Lowest AQI recorded in
September37AQI
202062AQI
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
September44AQI
Most & Least Polluted Years Over the Last 6 Years
Suwon's annual 2025 AQI (63) shows an average percentage change of -1.8% (improved AQI) compared to previous years: 2020 (62), 2021 (66), 2022 (65), 2023 (68), 2024 (62).