Pha9 Vysocany, Prague, Praha, Czechia 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
Pha9 Vysocany, Prague, Praha, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 18 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Pha9 Vysocany, Prague, Praha, Czechia
6 AM17th Sep 2025
7 PM
5 AM18th Sep 2025
21AQI
18AQI
24AQI
18AQI
In the last 24 hours,
Pha9 Vysocany's AQI reached its highest point of 24 at 2 AM during the Night, while the lowest point, 18, was recorded at 1 AM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Pha9 Vysocany, Prague, Praha, Czechia
20°C12/27°C
22°C14/29°C
20°C16/25°C
16°C11/21°C
14°C9/18°C
14°C7/21°C
16°C9/24°C
18°C11/26°C
20°C14/28°C
22°C15/31°C
19°C17/24°C
19°C15/24°C
19°C13/25°C
21°C14/28°C
17°C15/21°C
19°C13/25°C
21°C15/28°C
17°C14/21°C
17°C13/21°C
16°C11/22°C
17°C11/22°C
18°C12/24°C
17°C14/23°C
17°C12/23°C
16°C13/20°C
16°C12/21°C
14°C11/18°C
16°C10/23°C
15°C12/19°C
14°C11/19°C
--°C/°C
33AQI
25AQI
28AQI
25AQI
2025 Days Vs Air Quality
Pha9 Vysocany, Prague, Praha, Czechia
62%
162
36%
94
2%
4
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 62%
Health Risk Level:
Moderate
In 2025, 62% of 261 days were within WHO’s safe air quality limits, and 38% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Pha9 Vysocany, Prague, Praha, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
82AQI
64AQI
56AQI
52AQI
58AQI
61AQI
60AQI
53AQI
47AQI
41AQI
35AQI
32AQI
39AQI
60AQI
59AQI
57AQI
57AQI
65AQI
84AQI
77AQI
72AQI
74AQI
66AQI
62AQI
59AQI
58AQI
57AQI
55AQI
48AQI
57AQI
60AQI
60AQI
69AQI
77AQI
86AQI
95AQI
78AQI
71AQI
75AQI
82AQI
90AQI
92AQI
87AQI
80AQI
82AQI
73AQI
76AQI
75AQI
78AQI
87AQI
87AQI
89AQI
85AQI
97AQI
114AQI
117AQI
92AQI
73AQI
61AQI
59AQI
57AQI
63AQI
72AQI
78AQI
89AQI
97AQI
100AQI
102AQI
101AQI
82AQI
75AQI
66AQI
61AQI
58AQI
56AQI
51AQI
54AQI
61AQI
64AQI
70AQI
68AQI
65AQI
70AQI
75AQI
73AQI
63AQI
63AQI
70AQI
57AQI
52AQI
49AQI
50AQI
54AQI
54AQI
52AQI
32AQI
29AQI
32AQI
41AQI
41AQI
46AQI
49AQI
50AQI
52AQI
50AQI
52AQI
55AQI
41AQI
30AQI
38AQI
41AQI
34AQI
34AQI
39AQI
36AQI
36AQI
35AQI
41AQI
45AQI
48AQI
61AQI
52AQI
52AQI
34AQI
30AQI
28AQI
32AQI
28AQI
31AQI
35AQI
30AQI
33AQI
37AQI
42AQI
36AQI
25AQI
24AQI
18AQI
20AQI
31AQI
38AQI
37AQI
30AQI
29AQI
29AQI
29AQI
28AQI
25AQI
20AQI
22AQI
31AQI
33AQI
31AQI
38AQI
36AQI
27AQI
24AQI
19AQI
20AQI
23AQI
39AQI
43AQI
47AQI
47AQI
40AQI
45AQI
42AQI
38AQI
42AQI
47AQI
42AQI
39AQI
35AQI
41AQI
38AQI
33AQI
35AQI
33AQI
31AQI
30AQI
28AQI
28AQI
32AQI
38AQI
34AQI
33AQI
33AQI
31AQI
24AQI
22AQI
22AQI
22AQI
22AQI
23AQI
28AQI
34AQI
36AQI
31AQI
27AQI
30AQI
39AQI
45AQI
37AQI
27AQI
28AQI
30AQI
35AQI
35AQI
35AQI
34AQI
30AQI
26AQI
23AQI
25AQI
23AQI
24AQI
25AQI
24AQI
27AQI
35AQI
45AQI
52AQI
47AQI
41AQI
47AQI
57AQI
61AQI
63AQI
53AQI
34AQI
29AQI
36AQI
42AQI
35AQI
24AQI
18AQI
20AQI
27AQI
39AQI
47AQI
35AQI
28AQI
24AQI
27AQI
30AQI
23AQI
26AQI
25AQI
21AQI
22AQI
25AQI
37AQI
43AQI
27AQI
22AQI
21AQI
24AQI
18AQI
20AQI
18AQI
58AQI
83AQI
70AQI
43AQI
32AQI
36AQI
31AQI
36AQI
25AQI
No. of days
202547AQI
Highest AQI recorded in
February83AQI
Lowest AQI recorded in
September25AQI
202433AQI
Highest AQI recorded in
November56AQI
Lowest AQI recorded in
February25AQI
202327AQI
Highest AQI recorded in
June32AQI
Lowest AQI recorded in
November19AQI
202229AQI
Highest AQI recorded in
March39AQI
Lowest AQI recorded in
August20AQI
202126AQI
Highest AQI recorded in
March32AQI
Lowest AQI recorded in
August22AQI
202025AQI
Highest AQI recorded in
March35AQI
Lowest AQI recorded in
October19AQI
Most & Least Polluted Years Over the Last 6 Years
Pha9 Vysocany's annual 2025 AQI (47) shows an average percentage change of 68.9% (worsened AQI) compared to previous years: 2020 (25), 2021 (26), 2022 (29), 2023 (27), 2024 (33).