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 (27th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 38 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 27th Sep - 28th Sep 2026
Bratislava, Bratislavsky, Slovakia
6 AM27th Sep 2026
7 PM
5 AM28th Sep 2026
41AQI
24AQI
46AQI
40AQI
In the last 24 hours,
Bratislava's AQI reached its highest point of 46 at 12 AM during the Night, while the lowest point, 24, was recorded at 12 PM during the Day between 27th Sep and 28th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Bratislava, Bratislavsky, Slovakia
24°C19/30°C
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
35AQI
30AQI
37AQI
33AQI
2026 Days Vs Air Quality
Bratislava, Bratislavsky, Slovakia
74%
197
23%
62
3%
8
Total number of days with different AQI categories in last 271 days in 2026 (94 days remaining)
Under WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2026, 74% of 271 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)
72AQI (US)
48AQI (US)
50AQI (US)
34AQI (US)
32AQI (US)
34AQI (US)
33AQI (US)
40AQI (US)
33AQI (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).