Wels, Oberosterreich, Austria 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
Wels, Oberosterreich, Austria
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 61 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Wels, Oberosterreich, Austria
6 AM5th Oct 2025
7 PM
5 AM6th Oct 2025
AQI
AQI
43AQI
20AQI
In the last 24 hours,
Wels's AQI reached its highest point of 43 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Wels, Oberosterreich, Austria
14°C9/21°C
14°C10/20°C
16°C9/23°C
16°C11/22°C
15°C12/18°C
16°C10/22°C
15°C13/17°C
15°C12/21°C
14°C12/18°C
17°C11/24°C
15°C12/18°C
13°C8/19°C
17°C11/24°C
18°C12/25°C
19°C13/25°C
19°C14/26°C
16°C13/21°C
12°C11/14°C
10°C9/12°C
11°C10/12°C
13°C10/18°C
12°C7/17°C
11°C7/17°C
11°C9/15°C
10°C7/14°C
7°C3/12°C
8°C4/12°C
5°C0/12°C
5°C0/10°C
--°C/°C
--°C/°C
36AQI
31AQI
35AQI
32AQI
2025 Days Vs Air Quality
Wels, Oberosterreich, Austria
71%
197
28%
78
0.7%
2
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2025, 71% of 278 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Wels, Oberosterreich, Austria
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
94AQI
81AQI
32AQI
43AQI
63AQI
76AQI
49AQI
43AQI
56AQI
23AQI
38AQI
40AQI
48AQI
59AQI
67AQI
61AQI
56AQI
63AQI
64AQI
63AQI
69AQI
69AQI
64AQI
71AQI
67AQI
63AQI
63AQI
40AQI
47AQI
57AQI
50AQI
37AQI
61AQI
77AQI
84AQI
77AQI
66AQI
64AQI
87AQI
91AQI
86AQI
69AQI
80AQI
79AQI
65AQI
62AQI
47AQI
68AQI
74AQI
70AQI
81AQI
85AQI
94AQI
132AQI
114AQI
85AQI
45AQI
33AQI
35AQI
53AQI
55AQI
54AQI
58AQI
64AQI
76AQI
72AQI
68AQI
68AQI
61AQI
54AQI
57AQI
44AQI
47AQI
40AQI
58AQI
46AQI
31AQI
47AQI
61AQI
58AQI
64AQI
52AQI
42AQI
49AQI
57AQI
44AQI
61AQI
62AQI
48AQI
23AQI
38AQI
58AQI
55AQI
43AQI
40AQI
17AQI
21AQI
25AQI
43AQI
50AQI
48AQI
40AQI
54AQI
55AQI
25AQI
29AQI
41AQI
33AQI
26AQI
34AQI
20AQI
20AQI
29AQI
18AQI
22AQI
28AQI
28AQI
40AQI
40AQI
38AQI
39AQI
39AQI
47AQI
26AQI
26AQI
32AQI
39AQI
42AQI
37AQI
31AQI
29AQI
29AQI
36AQI
36AQI
33AQI
21AQI
25AQI
24AQI
26AQI
28AQI
38AQI
33AQI
29AQI
25AQI
26AQI
23AQI
27AQI
22AQI
16AQI
21AQI
27AQI
32AQI
30AQI
27AQI
30AQI
19AQI
22AQI
17AQI
25AQI
30AQI
49AQI
58AQI
46AQI
45AQI
34AQI
43AQI
37AQI
41AQI
43AQI
49AQI
36AQI
31AQI
28AQI
39AQI
36AQI
33AQI
34AQI
32AQI
30AQI
29AQI
33AQI
28AQI
30AQI
35AQI
42AQI
49AQI
45AQI
33AQI
22AQI
22AQI
23AQI
25AQI
24AQI
28AQI
28AQI
25AQI
32AQI
25AQI
26AQI
29AQI
30AQI
33AQI
21AQI
20AQI
28AQI
37AQI
38AQI
33AQI
21AQI
28AQI
23AQI
22AQI
24AQI
24AQI
21AQI
23AQI
31AQI
24AQI
26AQI
39AQI
50AQI
56AQI
46AQI
41AQI
54AQI
61AQI
58AQI
55AQI
55AQI
35AQI
30AQI
39AQI
42AQI
39AQI
24AQI
21AQI
22AQI
30AQI
41AQI
54AQI
27AQI
21AQI
17AQI
21AQI
20AQI
19AQI
19AQI
19AQI
18AQI
22AQI
30AQI
32AQI
32AQI
28AQI
19AQI
19AQI
21AQI
18AQI
17AQI
18AQI
20AQI
25AQI
32AQI
46AQI
39AQI
21AQI
26AQI
20AQI
21AQI
48AQI
60AQI
64AQI
49AQI
48AQI
56AQI
61AQI
61AQI
57AQI
73AQI
54AQI
35AQI
30AQI
35AQI
29AQI
36AQI
28AQI
57AQI
No. of days
202542AQI
Highest AQI recorded in
February73AQI
Lowest AQI recorded in
September28AQI
202438AQI
Highest AQI recorded in
November56AQI
Lowest AQI recorded in
May24AQI
202336AQI
Highest AQI recorded in
December46AQI
Lowest AQI recorded in
July25AQI
202242AQI
Highest AQI recorded in
March63AQI
Lowest AQI recorded in
July26AQI
202140AQI
Highest AQI recorded in
February58AQI
Lowest AQI recorded in
May20AQI
202039AQI
Highest AQI recorded in
March59AQI
Lowest AQI recorded in
June24AQI
Most & Least Polluted Years Over the Last 6 Years
Wels's annual 2025 AQI (42) shows an average percentage change of 8.2% (worsened AQI) compared to previous years: 2020 (39), 2021 (40), 2022 (42), 2023 (36), 2024 (38).