Bratislava, Bratislavsky, Slovakia 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
Bratislava, Bratislavsky, Slovakia
AQI Trends: Highest and Lowest
Same Day Analysis (28th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 45 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 28th Sep - 29th Sep 2026
Bratislava, Bratislavsky, Slovakia
6 AM28th Sep 2026
7 PM
5 AM29th Sep 2026
47AQI
41AQI
53AQI
36AQI
In the last 24 hours,
Bratislava's AQI reached its highest point of 53 at 10 PM during the Night, while the lowest point, 36, was recorded at 5 AM during the Night between 28th Sep and 29th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Bratislava, Bratislavsky, Slovakia
24°C18/29°C
21°C16/27°C
22°C18/27°C
22°C18/26°C
23°C17/30°C
22°C19/26°C
19°C14/24°C
20°C14/28°C
24°C17/32°C
23°C14/32°C
16°C13/19°C
13°C11/16°C
15°C11/21°C
16°C14/21°C
16°C14/20°C
18°C14/24°C
20°C15/26°C
16°C14/18°C
17°C13/22°C
19°C14/24°C
20°C16/26°C
15°C11/19°C
13°C10/16°C
13°C10/19°C
12°C10/15°C
13°C8/18°C
15°C11/20°C
16°C12/21°C
17°C12/23°C
17°C12/23°C
35AQI
30AQI
38AQI
33AQI
2026 Days Vs Air Quality
Bratislava, Bratislavsky, Slovakia
74%
198
23%
62
3%
8
Total number of days with different AQI categories in last 272 days in 2026 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2026, 74% of 272 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
Bratislava, Bratislavsky, Slovakia
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI (US)
35AQI (US)
27AQI (US)
40AQI (US)
61AQI (US)
49AQI (US)
62AQI (US)
63AQI (US)
73AQI (US)
101AQI (US)
41AQI (US)
44AQI (US)
74AQI (US)
99AQI (US)
112AQI (US)
106AQI (US)
73AQI (US)
73AQI (US)
78AQI (US)
79AQI (US)
93AQI (US)
116AQI (US)
137AQI (US)
142AQI (US)
78AQI (US)
52AQI (US)
49AQI (US)
48AQI (US)
29AQI (US)
64AQI (US)
80AQI (US)
98AQI (US)
109AQI (US)
51AQI (US)
31AQI (US)
42AQI (US)
65AQI (US)
41AQI (US)
50AQI (US)
65AQI (US)
62AQI (US)
58AQI (US)
51AQI (US)
12AQI (US)
31AQI (US)
22AQI (US)
37AQI (US)
52AQI (US)
15AQI (US)
27AQI (US)
56AQI (US)
66AQI (US)
93AQI (US)
21AQI (US)
12AQI (US)
31AQI (US)
43AQI (US)
58AQI (US)
58AQI (US)
66AQI (US)
67AQI (US)
81AQI (US)
109AQI (US)
91AQI (US)
57AQI (US)
69AQI (US)
56AQI (US)
52AQI (US)
58AQI (US)
67AQI (US)
55AQI (US)
34AQI (US)
45AQI (US)
47AQI (US)
35AQI (US)
35AQI (US)
59AQI (US)
33AQI (US)
56AQI (US)
65AQI (US)
36AQI (US)
33AQI (US)
48AQI (US)
57AQI (US)
11AQI (US)
18AQI (US)
30AQI (US)
27AQI (US)
25AQI (US)
35AQI (US)
43AQI (US)
40AQI (US)
38AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
42AQI (US)
44AQI (US)
45AQI (US)
41AQI (US)
42AQI (US)
67AQI (US)
69AQI (US)
35AQI (US)
45AQI (US)
14AQI (US)
23AQI (US)
36AQI (US)
33AQI (US)
26AQI (US)
17AQI (US)
18AQI (US)
24AQI (US)
23AQI (US)
21AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
27AQI (US)
31AQI (US)
34AQI (US)
18AQI (US)
22AQI (US)
23AQI (US)
27AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
37AQI (US)
45AQI (US)
30AQI (US)
33AQI (US)
36AQI (US)
49AQI (US)
36AQI (US)
35AQI (US)
43AQI (US)
49AQI (US)
54AQI (US)
55AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
15AQI (US)
17AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
25AQI (US)
27AQI (US)
28AQI (US)
40AQI (US)
53AQI (US)
49AQI (US)
53AQI (US)
41AQI (US)
32AQI (US)
24AQI (US)
53AQI (US)
72AQI (US)
67AQI (US)
80AQI (US)
63AQI (US)
56AQI (US)
32AQI (US)
30AQI (US)
20AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
41AQI (US)
50AQI (US)
36AQI (US)
36AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
33AQI (US)
38AQI (US)
40AQI (US)
35AQI (US)
44AQI (US)
54AQI (US)
55AQI (US)
50AQI (US)
45AQI (US)
55AQI (US)
58AQI (US)
56AQI (US)
58AQI (US)
41AQI (US)
41AQI (US)
46AQI (US)
45AQI (US)
47AQI (US)
28AQI (US)
35AQI (US)
29AQI (US)
34AQI (US)
43AQI (US)
43AQI (US)
32AQI (US)
30AQI (US)
43AQI (US)
38AQI (US)
20AQI (US)
23AQI (US)
36AQI (US)
37AQI (US)
47AQI (US)
50AQI (US)
47AQI (US)
33AQI (US)
27AQI (US)
38AQI (US)
29AQI (US)
31AQI (US)
39AQI (US)
37AQI (US)
34AQI (US)
27AQI (US)
35AQI (US)
43AQI (US)
52AQI (US)
26AQI (US)
24AQI (US)
31AQI (US)
42AQI (US)
24AQI (US)
31AQI (US)
41AQI (US)
33AQI (US)
38AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
38AQI (US)
45AQI (US)
72AQI (US)
48AQI (US)
50AQI (US)
34AQI (US)
32AQI (US)
34AQI (US)
33AQI (US)
40AQI (US)
34AQI (US)
No. of days
202642AQI (US)
Highest AQI (US) recorded in
January72AQI (US)
Lowest AQI (US) recorded in
May32AQI (US)
202546AQI (US)
Highest AQI (US) recorded in
February83AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202444AQI (US)
Highest AQI (US) recorded in
December55AQI (US)
Lowest AQI (US) recorded in
May34AQI (US)
202344AQI (US)
Highest AQI (US) recorded in
December51AQI (US)
Lowest AQI (US) recorded in
November31AQI (US)
202247AQI (US)
Highest AQI (US) recorded in
March72AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202149AQI (US)
Highest AQI (US) recorded in
February70AQI (US)
Lowest AQI (US) recorded in
August22AQI (US)
202046AQI (US)
Highest AQI (US) recorded in
March64AQI (US)
Lowest AQI (US) recorded in
October35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Bratislava's annual 2026 AQI (US) (42) shows an average percentage change of -8.5% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (49), 2022 (47), 2023 (44), 2024 (44), 2025 (46).