Hoengseonggun, Wonju, Gangwon, 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
Hoengseonggun, Wonju, Gangwon, 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 54 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
Hoengseonggun, Wonju, Gangwon, South Korea
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
AQI
AQI
65AQI
38AQI
In the last 24 hours,
Hoengseonggun's AQI reached its highest point of 65 at 4 PM during the Night, while the lowest point, 38, was recorded at 10 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hoengseonggun, Wonju, Gangwon, South Korea
20°C18/25°C
23°C17/31°C
23°C19/28°C
22°C19/29°C
21°C15/29°C
20°C17/25°C
20°C14/30°C
20°C12/30°C
19°C14/26°C
19°C16/23°C
20°C16/26°C
23°C17/29°C
22°C17/27°C
21°C19/23°C
18°C15/20°C
15°C12/18°C
15°C12/20°C
17°C12/25°C
16°C11/23°C
18°C13/25°C
19°C13/25°C
18°C16/23°C
18°C12/26°C
18°C13/26°C
16°C14/18°C
16°C13/22°C
15°C11/22°C
16°C11/23°C
18°C12/26°C
--°C/°C
--°C/°C
40AQI
33AQI
41AQI
34AQI
2025 Days Vs Air Quality
Hoengseonggun, Wonju, Gangwon, South Korea
42%
117
54%
149
4%
10
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 42%
Health Risk Level:
Significant
In 2025, 42% of 276 days were within WHO’s safe air quality limits, and 58% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Hoengseonggun, Wonju, Gangwon, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
71AQI
69AQI
58AQI
62AQI
74AQI
94AQI
59AQI
69AQI
44AQI
62AQI
61AQI
78AQI
94AQI
107AQI
58AQI
71AQI
75AQI
86AQI
82AQI
114AQI
137AQI
143AQI
128AQI
113AQI
71AQI
59AQI
63AQI
60AQI
61AQI
57AQI
75AQI
72AQI
72AQI
55AQI
46AQI
44AQI
50AQI
54AQI
54AQI
59AQI
61AQI
70AQI
77AQI
50AQI
83AQI
58AQI
109AQI
48AQI
61AQI
48AQI
53AQI
53AQI
56AQI
56AQI
58AQI
59AQI
86AQI
59AQI
81AQI
88AQI
69AQI
54AQI
46AQI
40AQI
43AQI
72AQI
70AQI
79AQI
86AQI
94AQI
93AQI
77AQI
69AQI
45AQI
58AQI
57AQI
49AQI
70AQI
79AQI
95AQI
95AQI
102AQI
104AQI
121AQI
80AQI
94AQI
78AQI
51AQI
48AQI
58AQI
65AQI
68AQI
67AQI
75AQI
59AQI
63AQI
66AQI
77AQI
66AQI
67AQI
64AQI
53AQI
52AQI
45AQI
44AQI
62AQI
61AQI
75AQI
52AQI
50AQI
48AQI
40AQI
29AQI
53AQI
63AQI
55AQI
44AQI
51AQI
59AQI
58AQI
46AQI
44AQI
48AQI
46AQI
47AQI
35AQI
51AQI
59AQI
47AQI
42AQI
59AQI
65AQI
68AQI
68AQI
62AQI
52AQI
41AQI
55AQI
58AQI
54AQI
52AQI
53AQI
56AQI
38AQI
41AQI
54AQI
61AQI
73AQI
63AQI
50AQI
52AQI
56AQI
69AQI
63AQI
45AQI
53AQI
55AQI
66AQI
60AQI
62AQI
56AQI
52AQI
58AQI
59AQI
41AQI
52AQI
54AQI
58AQI
65AQI
62AQI
46AQI
50AQI
55AQI
57AQI
48AQI
39AQI
48AQI
53AQI
56AQI
49AQI
44AQI
39AQI
36AQI
50AQI
51AQI
50AQI
52AQI
59AQI
60AQI
53AQI
50AQI
44AQI
43AQI
49AQI
37AQI
35AQI
45AQI
34AQI
35AQI
32AQI
32AQI
38AQI
32AQI
34AQI
39AQI
49AQI
39AQI
37AQI
43AQI
51AQI
48AQI
46AQI
56AQI
60AQI
62AQI
50AQI
53AQI
45AQI
44AQI
52AQI
53AQI
45AQI
52AQI
47AQI
41AQI
40AQI
42AQI
43AQI
41AQI
51AQI
44AQI
45AQI
47AQI
49AQI
49AQI
51AQI
50AQI
44AQI
47AQI
51AQI
47AQI
45AQI
50AQI
40AQI
47AQI
48AQI
34AQI
32AQI
40AQI
40AQI
47AQI
50AQI
47AQI
48AQI
48AQI
41AQI
45AQI
44AQI
43AQI
35AQI
28AQI
28AQI
24AQI
22AQI
23AQI
23AQI
28AQI
27AQI
27AQI
24AQI
22AQI
26AQI
49AQI
55AQI
60AQI
54AQI
79AQI
62AQI
73AQI
58AQI
53AQI
54AQI
43AQI
48AQI
36AQI
56AQI
No. of days
202556AQI
Highest AQI recorded in
January79AQI
Lowest AQI recorded in
September36AQI
202452AQI
Highest AQI recorded in
January79AQI
Lowest AQI recorded in
September29AQI
202361AQI
Highest AQI recorded in
February88AQI
Lowest AQI recorded in
September34AQI
202261AQI
Highest AQI recorded in
January86AQI
Lowest AQI recorded in
August24AQI
202157AQI
Highest AQI recorded in
February77AQI
Lowest AQI recorded in
September28AQI
202056AQI
Highest AQI recorded in
December85AQI
Lowest AQI recorded in
July34AQI
Most & Least Polluted Years Over the Last 6 Years
Hoengseonggun's annual 2025 AQI (56) shows an average percentage change of -1.6% (improved AQI) compared to previous years: 2020 (56), 2021 (57), 2022 (61), 2023 (61), 2024 (52).