Trieste, Friuli Venezia Giulia, Italy Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Trieste, Friuli Venezia Giulia, Italy
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Trieste, Friuli Venezia Giulia, Italy
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
40AQI
23AQI
39AQI
26AQI
In the last 24 hours,
Trieste's AQI reached its highest point of 40 at 8 PM during the Day, while the lowest point, 23, was recorded at 5 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Trieste, Friuli Venezia Giulia, Italy
23°C16/29°C
20°C16/25°C
19°C16/23°C
18°C13/22°C
20°C15/25°C
19°C14/24°C
19°C13/24°C
21°C15/27°C
22°C16/27°C
24°C17/31°C
22°C17/26°C
21°C15/29°C
21°C16/26°C
23°C17/28°C
23°C16/30°C
24°C18/29°C
23°C16/29°C
24°C17/31°C
23°C17/29°C
19°C16/24°C
21°C15/27°C
20°C16/25°C
18°C16/20°C
19°C16/23°C
21°C15/26°C
22°C16/28°C
21°C16/27°C
19°C15/25°C
18°C14/23°C
20°C15/25°C
--°C/°C
29AQI
28AQI
32AQI
30AQI
2025 Days Vs Air Quality
Trieste, Friuli Venezia Giulia, Italy
70%
151
28%
60
2%
5
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 217 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
Trieste, Friuli Venezia Giulia, Italy
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
140AQI
141AQI
65AQI
56AQI
64AQI
73AQI
60AQI
65AQI
44AQI
46AQI
41AQI
39AQI
39AQI
42AQI
48AQI
43AQI
43AQI
46AQI
51AQI
63AQI
78AQI
83AQI
63AQI
67AQI
70AQI
60AQI
49AQI
41AQI
37AQI
53AQI
57AQI
47AQI
47AQI
55AQI
54AQI
54AQI
55AQI
62AQI
67AQI
65AQI
71AQI
90AQI
78AQI
63AQI
48AQI
52AQI
60AQI
59AQI
61AQI
61AQI
69AQI
90AQI
104AQI
90AQI
111AQI
130AQI
66AQI
46AQI
42AQI
34AQI
41AQI
48AQI
53AQI
52AQI
59AQI
61AQI
69AQI
73AQI
64AQI
59AQI
49AQI
36AQI
36AQI
37AQI
32AQI
35AQI
29AQI
40AQI
58AQI
52AQI
52AQI
49AQI
32AQI
39AQI
35AQI
37AQI
33AQI
28AQI
23AQI
26AQI
28AQI
33AQI
43AQI
44AQI
50AQI
36AQI
29AQI
39AQI
33AQI
38AQI
57AQI
51AQI
45AQI
33AQI
28AQI
38AQI
35AQI
28AQI
25AQI
22AQI
24AQI
35AQI
35AQI
33AQI
20AQI
19AQI
24AQI
32AQI
41AQI
40AQI
51AQI
47AQI
48AQI
39AQI
36AQI
20AQI
23AQI
26AQI
27AQI
30AQI
33AQI
35AQI
32AQI
34AQI
35AQI
22AQI
22AQI
23AQI
30AQI
37AQI
37AQI
33AQI
20AQI
23AQI
26AQI
34AQI
28AQI
31AQI
30AQI
22AQI
29AQI
32AQI
30AQI
32AQI
35AQI
35AQI
43AQI
49AQI
47AQI
50AQI
56AQI
65AQI
65AQI
59AQI
56AQI
59AQI
52AQI
38AQI
40AQI
49AQI
53AQI
44AQI
40AQI
47AQI
46AQI
52AQI
55AQI
47AQI
42AQI
38AQI
40AQI
37AQI
36AQI
39AQI
41AQI
37AQI
42AQI
37AQI
31AQI
26AQI
26AQI
25AQI
26AQI
30AQI
33AQI
35AQI
35AQI
34AQI
26AQI
25AQI
34AQI
38AQI
33AQI
32AQI
33AQI
33AQI
31AQI
26AQI
23AQI
23AQI
22AQI
24AQI
26AQI
24AQI
23AQI
26AQI
60AQI
68AQI
44AQI
35AQI
31AQI
47AQI
31AQI
25AQI
No. of days
202544AQI
Highest AQI recorded in
February68AQI
Lowest AQI recorded in
August25AQI
202443AQI
Highest AQI recorded in
January61AQI
Lowest AQI recorded in
April23AQI
202357AQI
Highest AQI recorded in
December60AQI
Lowest AQI recorded in
November26AQI
202248AQI
Highest AQI recorded in
March65AQI
Lowest AQI recorded in
April30AQI
202141AQI
Highest AQI recorded in
February65AQI
Lowest AQI recorded in
May24AQI
202041AQI
Highest AQI recorded in
March56AQI
Lowest AQI recorded in
July25AQI
Most & Least Polluted Years Over the Last 6 Years
Trieste's annual 2025 AQI (44) shows an average percentage change of -1.7% (improved AQI) compared to previous years: 2020 (41), 2021 (41), 2022 (48), 2023 (57), 2024 (43).