Plzen, Plzensky Kraj, Czechia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Plzen, Plzensky Kraj, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Plzen, Plzensky Kraj, Czechia
4 AM2nd Jul 2025
9 PM
3 AM3rd Jul 2025
48AQI
29AQI
44AQI
35AQI
In the last 24 hours,
Plzen's AQI reached its highest point of 48 at 11 AM during the Day, while the lowest point, 29, was recorded at 8 PM during the Day between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Plzen, Plzensky Kraj, Czechia
17°C12/23°C
18°C12/26°C
16°C13/20°C
17°C11/22°C
14°C12/16°C
13°C9/17°C
13°C7/19°C
15°C7/23°C
15°C9/21°C
15°C7/23°C
18°C9/26°C
19°C10/28°C
20°C14/32°C
16°C12/22°C
17°C11/24°C
20°C12/28°C
19°C12/25°C
17°C10/23°C
18°C10/26°C
21°C12/29°C
21°C14/28°C
19°C12/25°C
22°C14/30°C
23°C16/31°C
18°C15/26°C
22°C14/28°C
24°C16/31°C
22°C15/28°C
23°C13/32°C
25°C16/34°C
0°C0/0°C
37AQI
33AQI
34AQI
34AQI
2025 Days Vs Air Quality
Plzen, Plzensky Kraj, Czechia
61%
112
31%
57
8%
14
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 61%
Health Risk Level:
Moderate
In 2025, 61% of 184 days were within WHO’s safe air quality limits, and 39% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Plzen, Plzensky Kraj, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
35AQI
30AQI
34AQI
70AQI
104AQI
31AQI
25AQI
30AQI
24AQI
24AQI
28AQI
40AQI
82AQI
50AQI
65AQI
50AQI
74AQI
82AQI
78AQI
84AQI
80AQI
56AQI
46AQI
72AQI
58AQI
55AQI
26AQI
26AQI
66AQI
52AQI
60AQI
61AQI
94AQI
113AQI
101AQI
57AQI
64AQI
100AQI
109AQI
111AQI
93AQI
87AQI
78AQI
88AQI
66AQI
61AQI
77AQI
71AQI
81AQI
107AQI
134AQI
108AQI
138AQI
93AQI
103AQI
66AQI
39AQI
42AQI
53AQI
52AQI
72AQI
82AQI
84AQI
94AQI
108AQI
119AQI
120AQI
110AQI
65AQI
75AQI
58AQI
59AQI
62AQI
55AQI
46AQI
51AQI
55AQI
70AQI
70AQI
60AQI
64AQI
70AQI
71AQI
65AQI
47AQI
68AQI
81AQI
40AQI
24AQI
34AQI
40AQI
49AQI
43AQI
46AQI
25AQI
27AQI
36AQI
46AQI
39AQI
38AQI
37AQI
43AQI
49AQI
34AQI
40AQI
47AQI
30AQI
25AQI
31AQI
24AQI
22AQI
24AQI
28AQI
26AQI
32AQI
27AQI
31AQI
36AQI
38AQI
53AQI
46AQI
47AQI
26AQI
24AQI
24AQI
32AQI
27AQI
28AQI
31AQI
28AQI
30AQI
39AQI
39AQI
34AQI
21AQI
21AQI
17AQI
21AQI
29AQI
34AQI
34AQI
28AQI
27AQI
27AQI
25AQI
27AQI
20AQI
16AQI
20AQI
30AQI
31AQI
27AQI
33AQI
27AQI
22AQI
17AQI
16AQI
20AQI
23AQI
46AQI
42AQI
42AQI
47AQI
37AQI
49AQI
36AQI
32AQI
42AQI
51AQI
35AQI
36AQI
38AQI
43AQI
32AQI
31AQI
36AQI
31AQI
28AQI
28AQI
28AQI
30AQI
37AQI
53AQI
86AQI
69AQI
35AQI
29AQI
34AQI
34AQI
No. of days
202550AQI
Highest AQI recorded in
February86AQI
Lowest AQI recorded in
May29AQI
202444AQI
Highest AQI recorded in
January56AQI
Lowest AQI recorded in
May34AQI
202343AQI
Highest AQI recorded in
February57AQI
Lowest AQI recorded in
November29AQI
202248AQI
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
August32AQI
202144AQI
Highest AQI recorded in
February60AQI
Lowest AQI recorded in
August30AQI
202042AQI
Highest AQI recorded in
December80AQI
Lowest AQI recorded in
July33AQI
Most & Least Polluted Years Over the Last 6 Years
Plzen's annual 2025 AQI (50) shows an average percentage change of 14.02% (worsened AQI) compared to previous years: 2020 (42), 2021 (44), 2022 (48), 2023 (43), 2024 (44).