Pha2 Rieger Sets, 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
Pha2 Rieger Sets, Prague, Praha, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (18th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 23 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Pha2 Rieger Sets, Prague, Praha, Czechia
6 AM19th Sep 2025
7 PM
5 AM20th Sep 2025
AQI
AQI
38AQI
22AQI
In the last 24 hours,
Pha2 Rieger Sets's AQI reached its highest point of 38 at 10 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Pha2 Rieger Sets, Prague, Praha, Czechia
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
17°C12/25°C
--°C/°C
--°C/°C
32AQI
24AQI
27AQI
23AQI
2025 Days Vs Air Quality
Pha2 Rieger Sets, Prague, Praha, Czechia
68%
178
27%
70
5%
13
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Under WHO’s Safe Air Quality Limits: 68%
Health Risk Level:
Moderate
In 2025, 68% of 262 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Pha2 Rieger Sets, Prague, Praha, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
97AQI
33AQI
31AQI
33AQI
63AQI
63AQI
44AQI
27AQI
24AQI
28AQI
27AQI
29AQI
38AQI
69AQI
51AQI
47AQI
51AQI
74AQI
91AQI
72AQI
67AQI
81AQI
52AQI
47AQI
47AQI
52AQI
42AQI
43AQI
27AQI
55AQI
52AQI
48AQI
75AQI
87AQI
101AQI
109AQI
51AQI
62AQI
89AQI
96AQI
112AQI
108AQI
91AQI
71AQI
99AQI
58AQI
90AQI
77AQI
82AQI
112AQI
95AQI
95AQI
93AQI
132AQI
141AQI
131AQI
66AQI
40AQI
37AQI
51AQI
49AQI
68AQI
80AQI
88AQI
107AQI
124AQI
135AQI
128AQI
127AQI
69AQI
70AQI
58AQI
65AQI
54AQI
52AQI
47AQI
52AQI
67AQI
68AQI
80AQI
65AQI
59AQI
80AQI
80AQI
79AQI
45AQI
66AQI
83AQI
43AQI
32AQI
41AQI
48AQI
61AQI
56AQI
58AQI
27AQI
27AQI
34AQI
48AQI
40AQI
43AQI
46AQI
47AQI
57AQI
42AQI
59AQI
63AQI
37AQI
22AQI
45AQI
41AQI
31AQI
30AQI
33AQI
31AQI
38AQI
34AQI
44AQI
49AQI
48AQI
81AQI
56AQI
52AQI
29AQI
29AQI
31AQI
42AQI
28AQI
34AQI
34AQI
34AQI
35AQI
44AQI
48AQI
43AQI
25AQI
24AQI
18AQI
21AQI
37AQI
41AQI
35AQI
27AQI
28AQI
32AQI
29AQI
27AQI
21AQI
21AQI
24AQI
38AQI
33AQI
28AQI
40AQI
33AQI
25AQI
21AQI
17AQI
23AQI
26AQI
40AQI
45AQI
53AQI
53AQI
43AQI
45AQI
44AQI
38AQI
44AQI
50AQI
41AQI
39AQI
34AQI
42AQI
38AQI
32AQI
37AQI
36AQI
32AQI
31AQI
29AQI
33AQI
42AQI
44AQI
42AQI
39AQI
42AQI
37AQI
28AQI
27AQI
26AQI
24AQI
24AQI
25AQI
34AQI
33AQI
36AQI
29AQI
25AQI
38AQI
50AQI
52AQI
29AQI
22AQI
32AQI
32AQI
40AQI
35AQI
38AQI
31AQI
26AQI
23AQI
23AQI
25AQI
23AQI
23AQI
25AQI
23AQI
29AQI
39AQI
53AQI
61AQI
44AQI
39AQI
48AQI
60AQI
62AQI
63AQI
50AQI
29AQI
27AQI
36AQI
44AQI
34AQI
24AQI
18AQI
19AQI
28AQI
39AQI
48AQI
29AQI
25AQI
23AQI
25AQI
28AQI
22AQI
29AQI
22AQI
19AQI
22AQI
25AQI
34AQI
40AQI
26AQI
20AQI
19AQI
22AQI
18AQI
19AQI
19AQI
23AQI
50AQI
87AQI
73AQI
43AQI
34AQI
36AQI
33AQI
36AQI
24AQI
No. of days
202547AQI
Highest AQI recorded in
February87AQI
Lowest AQI recorded in
September24AQI
202448AQI
Highest AQI recorded in
January60AQI
Lowest AQI recorded in
April41AQI
202339AQI
Highest AQI recorded in
February53AQI
Lowest AQI recorded in
August29AQI
202249AQI
Highest AQI recorded in
March72AQI
Lowest AQI recorded in
August32AQI
202147AQI
Highest AQI recorded in
February60AQI
Lowest AQI recorded in
August34AQI
202046AQI
Highest AQI recorded in
December77AQI
Lowest AQI recorded in
October35AQI
Most & Least Polluted Years Over the Last 6 Years
Pha2 Rieger Sets's annual 2025 AQI (47) shows an average percentage change of 3.8% (worsened AQI) compared to previous years: 2020 (46), 2021 (47), 2022 (49), 2023 (39), 2024 (48).