Hartberg, Steiermark, Austria 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
Hartberg, Steiermark, Austria
AQI Trends: Highest and Lowest
Same Day Analysis (26th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 23 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Hartberg, Steiermark, Austria
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
34AQI
20AQI
32AQI
18AQI
In the last 24 hours,
Hartberg's AQI reached its highest point of 34 at 12 PM during the Day, while the lowest point, 18, was recorded at 7 PM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Hartberg, Steiermark, Austria
20°C15/26°C
16°C12/21°C
19°C14/25°C
19°C14/25°C
17°C12/24°C
17°C13/23°C
18°C15/23°C
19°C14/26°C
18°C14/23°C
16°C11/23°C
18°C11/26°C
21°C16/27°C
19°C11/26°C
11°C9/12°C
10°C8/14°C
12°C7/19°C
13°C10/18°C
13°C10/16°C
14°C10/21°C
16°C11/22°C
12°C10/13°C
14°C9/19°C
15°C12/20°C
17°C12/23°C
12°C6/16°C
9°C5/13°C
9°C4/16°C
9°C6/16°C
9°C4/15°C
11°C6/18°C
30AQI
23AQI
32AQI
24AQI
2026 Days Vs Air Quality
Hartberg, Steiermark, Austria
70%
186
29%
77
1%
3
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2026, 70% of 269 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
Hartberg, Steiermark, Austria
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI (US)
50AQI (US)
46AQI (US)
36AQI (US)
44AQI (US)
51AQI (US)
42AQI (US)
54AQI (US)
59AQI (US)
66AQI (US)
34AQI (US)
43AQI (US)
56AQI (US)
63AQI (US)
68AQI (US)
53AQI (US)
64AQI (US)
56AQI (US)
60AQI (US)
64AQI (US)
70AQI (US)
112AQI (US)
126AQI (US)
118AQI (US)
93AQI (US)
37AQI (US)
41AQI (US)
54AQI (US)
42AQI (US)
58AQI (US)
77AQI (US)
80AQI (US)
83AQI (US)
74AQI (US)
62AQI (US)
51AQI (US)
39AQI (US)
52AQI (US)
55AQI (US)
58AQI (US)
66AQI (US)
52AQI (US)
36AQI (US)
28AQI (US)
50AQI (US)
24AQI (US)
57AQI (US)
52AQI (US)
24AQI (US)
47AQI (US)
48AQI (US)
86AQI (US)
72AQI (US)
51AQI (US)
26AQI (US)
30AQI (US)
58AQI (US)
75AQI (US)
80AQI (US)
80AQI (US)
90AQI (US)
90AQI (US)
68AQI (US)
52AQI (US)
68AQI (US)
81AQI (US)
68AQI (US)
65AQI (US)
69AQI (US)
70AQI (US)
59AQI (US)
45AQI (US)
39AQI (US)
46AQI (US)
54AQI (US)
23AQI (US)
60AQI (US)
54AQI (US)
70AQI (US)
83AQI (US)
64AQI (US)
60AQI (US)
60AQI (US)
63AQI (US)
14AQI (US)
18AQI (US)
30AQI (US)
30AQI (US)
27AQI (US)
20AQI (US)
24AQI (US)
40AQI (US)
41AQI (US)
32AQI (US)
46AQI (US)
31AQI (US)
26AQI (US)
18AQI (US)
30AQI (US)
56AQI (US)
75AQI (US)
50AQI (US)
46AQI (US)
60AQI (US)
72AQI (US)
67AQI (US)
42AQI (US)
36AQI (US)
21AQI (US)
35AQI (US)
24AQI (US)
18AQI (US)
19AQI (US)
28AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
28AQI (US)
34AQI (US)
34AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
42AQI (US)
34AQI (US)
13AQI (US)
21AQI (US)
32AQI (US)
28AQI (US)
38AQI (US)
44AQI (US)
28AQI (US)
34AQI (US)
36AQI (US)
47AQI (US)
29AQI (US)
32AQI (US)
40AQI (US)
50AQI (US)
48AQI (US)
48AQI (US)
30AQI (US)
18AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
32AQI (US)
24AQI (US)
16AQI (US)
18AQI (US)
19AQI (US)
22AQI (US)
28AQI (US)
30AQI (US)
19AQI (US)
16AQI (US)
18AQI (US)
19AQI (US)
24AQI (US)
22AQI (US)
30AQI (US)
28AQI (US)
40AQI (US)
54AQI (US)
58AQI (US)
56AQI (US)
58AQI (US)
59AQI (US)
56AQI (US)
38AQI (US)
44AQI (US)
61AQI (US)
70AQI (US)
82AQI (US)
76AQI (US)
64AQI (US)
16AQI (US)
28AQI (US)
19AQI (US)
23AQI (US)
18AQI (US)
15AQI (US)
18AQI (US)
28AQI (US)
22AQI (US)
36AQI (US)
33AQI (US)
33AQI (US)
44AQI (US)
46AQI (US)
42AQI (US)
50AQI (US)
30AQI (US)
28AQI (US)
32AQI (US)
30AQI (US)
28AQI (US)
26AQI (US)
23AQI (US)
26AQI (US)
40AQI (US)
37AQI (US)
30AQI (US)
44AQI (US)
47AQI (US)
52AQI (US)
51AQI (US)
48AQI (US)
46AQI (US)
49AQI (US)
54AQI (US)
52AQI (US)
40AQI (US)
38AQI (US)
44AQI (US)
48AQI (US)
46AQI (US)
36AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
52AQI (US)
45AQI (US)
36AQI (US)
28AQI (US)
39AQI (US)
30AQI (US)
18AQI (US)
22AQI (US)
26AQI (US)
34AQI (US)
28AQI (US)
37AQI (US)
49AQI (US)
32AQI (US)
25AQI (US)
31AQI (US)
24AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
29AQI (US)
22AQI (US)
28AQI (US)
34AQI (US)
36AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
29AQI (US)
30AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
33AQI (US)
24AQI (US)
23AQI (US)
60AQI (US)
54AQI (US)
55AQI (US)
37AQI (US)
32AQI (US)
38AQI (US)
33AQI (US)
38AQI (US)
26AQI (US)
No. of days
202642AQI (US)
Highest AQI (US) recorded in
January60AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
February56AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202420AQI (US)
Highest AQI (US) recorded in
November49AQI (US)
Lowest AQI (US) recorded in
May9AQI (US)
202312AQI (US)
Highest AQI (US) recorded in
February14AQI (US)
Lowest AQI (US) recorded in
November9AQI (US)
202213AQI (US)
Highest AQI (US) recorded in
March21AQI (US)
Lowest AQI (US) recorded in
September7AQI (US)
202112AQI (US)
Highest AQI (US) recorded in
February20AQI (US)
Lowest AQI (US) recorded in
May6AQI (US)
202012AQI (US)
Highest AQI (US) recorded in
March24AQI (US)
Lowest AQI (US) recorded in
June9AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hartberg's annual 2026 AQI (US) (42) shows an average percentage change of 182.7% (worsened AQI (US)) compared to previous years: 2020 (12), 2021 (12), 2022 (13), 2023 (12), 2024 (20), 2025 (37).