Sibiu, Judetul Sibiu, Romania 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
Sibiu, Judetul Sibiu, Romania
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
Sibiu, Judetul Sibiu, Romania
7 AM28th Sep 2025
7 PM
6 AM29th Sep 2025
29AQI
12AQI
54AQI
30AQI
In the last 24 hours,
Sibiu's AQI reached its highest point of 54 at 12 AM during the Night, while the lowest point, 12, was recorded at 5 PM during the Day between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Sibiu, Judetul Sibiu, Romania
23°C14/33°C
18°C14/22°C
18°C15/24°C
21°C14/29°C
23°C16/31°C
23°C17/30°C
22°C16/30°C
21°C14/28°C
21°C15/28°C
19°C13/27°C
18°C14/25°C
19°C13/27°C
19°C16/25°C
17°C14/22°C
18°C13/26°C
17°C12/25°C
17°C12/23°C
18°C11/27°C
15°C12/19°C
14°C8/19°C
14°C9/21°C
18°C12/25°C
19°C13/28°C
19°C13/28°C
18°C11/27°C
19°C12/28°C
16°C12/22°C
11°C7/15°C
10°C7/15°C
13°C7/19°C
--°C/°C
33AQI
28AQI
31AQI
29AQI
2025 Days Vs Air Quality
Sibiu, Judetul Sibiu, Romania
96%
118
4%
5
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 272 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Sibiu, Judetul Sibiu, Romania
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
36AQI
37AQI
42AQI
38AQI
43AQI
47AQI
47AQI
50AQI
51AQI
53AQI
52AQI
52AQI
54AQI
48AQI
41AQI
37AQI
37AQI
43AQI
44AQI
42AQI
45AQI
45AQI
34AQI
29AQI
32AQI
36AQI
36AQI
40AQI
39AQI
40AQI
39AQI
36AQI
33AQI
26AQI
27AQI
28AQI
36AQI
39AQI
45AQI
48AQI
44AQI
31AQI
29AQI
28AQI
30AQI
33AQI
40AQI
37AQI
34AQI
26AQI
26AQI
25AQI
36AQI
38AQI
30AQI
26AQI
37AQI
43AQI
39AQI
29AQI
25AQI
22AQI
26AQI
28AQI
29AQI
29AQI
29AQI
28AQI
28AQI
27AQI
32AQI
32AQI
33AQI
33AQI
32AQI
32AQI
33AQI
32AQI
33AQI
33AQI
33AQI
33AQI
34AQI
34AQI
35AQI
34AQI
33AQI
31AQI
30AQI
31AQI
32AQI
31AQI
32AQI
32AQI
32AQI
33AQI
32AQI
38AQI
34AQI
33AQI
32AQI
34AQI
35AQI
37AQI
36AQI
34AQI
34AQI
34AQI
32AQI
29AQI
26AQI
22AQI
22AQI
26AQI
27AQI
23AQI
21AQI
24AQI
30AQI
38AQI
30AQI
32AQI
33AQI
42AQI
33AQI
32AQI
31AQI
No. of days
202534AQI
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
September31AQI
Most & Least Polluted Years Over the Last 1 Years
Sibiu's annual 2025 AQI (34) shows an average percentage change of NaN% (improved AQI) compared to previous years: .