Opava, Moravskoslezsky 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
Opava, Moravskoslezsky Kraj, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Opava, Moravskoslezsky Kraj, Czechia
4 AM2nd Jul 2025
9 PM
3 AM3rd Jul 2025
45AQI
23AQI
52AQI
23AQI
In the last 24 hours,
Opava's AQI reached its highest point of 52 at 3 AM during the Night, while the lowest point, 23, was recorded at 1 AM during the Night between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Opava, Moravskoslezsky Kraj, Czechia
18°C15/22°C
21°C14/27°C
20°C16/26°C
20°C14/26°C
18°C15/23°C
15°C12/18°C
13°C10/18°C
15°C8/21°C
14°C9/17°C
14°C7/19°C
14°C8/19°C
16°C8/23°C
20°C12/27°C
16°C14/19°C
17°C11/21°C
19°C13/26°C
18°C12/22°C
14°C8/20°C
16°C8/22°C
20°C13/27°C
20°C15/27°C
18°C12/24°C
21°C14/26°C
23°C16/31°C
20°C15/25°C
19°C12/25°C
22°C17/26°C
19°C13/24°C
18°C10/25°C
22°C13/30°C
0°C0/0°C
34AQI
29AQI
35AQI
35AQI
2025 Days Vs Air Quality
Opava, Moravskoslezsky Kraj, Czechia
54%
99
37%
68
9%
16
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 54%
Health Risk Level:
Considerable
In 2025, 54% of 184 days were within WHO’s safe air quality limits, and 46% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Opava, Moravskoslezsky Kraj, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
75AQI
61AQI
43AQI
41AQI
79AQI
52AQI
50AQI
30AQI
31AQI
27AQI
25AQI
30AQI
41AQI
64AQI
64AQI
60AQI
60AQI
74AQI
87AQI
61AQI
115AQI
115AQI
92AQI
79AQI
53AQI
60AQI
48AQI
45AQI
37AQI
58AQI
69AQI
54AQI
66AQI
87AQI
104AQI
90AQI
69AQI
109AQI
112AQI
130AQI
147AQI
145AQI
125AQI
84AQI
97AQI
84AQI
74AQI
113AQI
102AQI
102AQI
114AQI
84AQI
74AQI
92AQI
107AQI
97AQI
126AQI
119AQI
77AQI
67AQI
55AQI
65AQI
92AQI
84AQI
84AQI
85AQI
97AQI
98AQI
87AQI
57AQI
53AQI
56AQI
58AQI
56AQI
63AQI
54AQI
51AQI
69AQI
61AQI
77AQI
89AQI
65AQI
69AQI
77AQI
98AQI
57AQI
72AQI
94AQI
85AQI
36AQI
61AQI
67AQI
57AQI
58AQI
53AQI
37AQI
28AQI
36AQI
42AQI
31AQI
46AQI
46AQI
49AQI
46AQI
39AQI
42AQI
52AQI
30AQI
19AQI
23AQI
36AQI
41AQI
44AQI
60AQI
42AQI
41AQI
40AQI
43AQI
45AQI
38AQI
41AQI
38AQI
40AQI
30AQI
26AQI
35AQI
40AQI
28AQI
43AQI
33AQI
30AQI
38AQI
48AQI
40AQI
29AQI
20AQI
22AQI
18AQI
20AQI
26AQI
33AQI
29AQI
19AQI
25AQI
28AQI
29AQI
29AQI
25AQI
18AQI
22AQI
34AQI
28AQI
33AQI
30AQI
30AQI
30AQI
24AQI
21AQI
19AQI
22AQI
30AQI
39AQI
40AQI
34AQI
35AQI
47AQI
45AQI
33AQI
42AQI
50AQI
37AQI
30AQI
26AQI
37AQI
34AQI
33AQI
32AQI
30AQI
26AQI
30AQI
30AQI
31AQI
31AQI
59AQI
99AQI
71AQI
43AQI
30AQI
33AQI
31AQI
No. of days
202555AQI
Highest AQI recorded in
February99AQI
Lowest AQI recorded in
May30AQI
202454AQI
Highest AQI recorded in
March68AQI
Lowest AQI recorded in
May43AQI
202349AQI
Highest AQI recorded in
February59AQI
Lowest AQI recorded in
November36AQI
202257AQI
Highest AQI recorded in
March94AQI
Lowest AQI recorded in
September40AQI
202152AQI
Highest AQI recorded in
December71AQI
Lowest AQI recorded in
August36AQI
202052AQI
Highest AQI recorded in
December91AQI
Lowest AQI recorded in
July43AQI
Most & Least Polluted Years Over the Last 6 Years
Opava's annual 2025 AQI (55) shows an average percentage change of 4.8% (worsened AQI) compared to previous years: 2020 (52), 2021 (52), 2022 (57), 2023 (49), 2024 (54).