Lille, Viljandi, Viljandimaa, Estonia 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
Lille, Viljandi, Viljandimaa, Estonia
AQI Trends: Highest and Lowest
Same Day Analysis (8th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 18 of Good air quality on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Lille, Viljandi, Viljandimaa, Estonia
4 AM8th Aug 2026
9 PM
3 AM9th Aug 2026
100AQI
4AQI
12AQI
4AQI
In the last 24 hours,
Lille's AQI reached its highest point of 100 at 4 PM during the Day, while the lowest point, 4, was recorded at 6 AM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Lille, Viljandi, Viljandimaa, Estonia
19°C14/26°C
22°C16/29°C
22°C16/27°C
20°C15/25°C
20°C13/26°C
20°C15/25°C
20°C12/26°C
22°C17/28°C
19°C15/21°C
16°C13/21°C
13°C11/14°C
13°C10/16°C
14°C9/19°C
15°C10/20°C
16°C11/22°C
18°C14/25°C
18°C16/23°C
16°C12/21°C
17°C10/23°C
18°C12/25°C
22°C16/29°C
19°C15/24°C
17°C12/22°C
16°C11/21°C
17°C11/24°C
19°C12/26°C
21°C16/25°C
18°C13/21°C
15°C11/20°C
17°C11/22°C
23AQI
14AQI
17AQI
15AQI
2026 Days Vs Air Quality
Lille, Viljandi, Viljandimaa, Estonia
95%
207
5%
10
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 221 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
Lille, Viljandi, Viljandimaa, Estonia
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
15AQI (US)
17AQI (US)
30AQI (US)
41AQI (US)
37AQI (US)
41AQI (US)
39AQI (US)
36AQI (US)
19AQI (US)
11AQI (US)
20AQI (US)
35AQI (US)
28AQI (US)
39AQI (US)
50AQI (US)
54AQI (US)
49AQI (US)
55AQI (US)
63AQI (US)
50AQI (US)
39AQI (US)
9AQI (US)
23AQI (US)
46AQI (US)
49AQI (US)
31AQI (US)
11AQI (US)
24AQI (US)
22AQI (US)
29AQI (US)
36AQI (US)
26AQI (US)
32AQI (US)
16AQI (US)
10AQI (US)
17AQI (US)
20AQI (US)
37AQI (US)
14AQI (US)
42AQI (US)
36AQI (US)
51AQI (US)
35AQI (US)
32AQI (US)
30AQI (US)
23AQI (US)
21AQI (US)
36AQI (US)
21AQI (US)
22AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
14AQI (US)
11AQI (US)
20AQI (US)
22AQI (US)
43AQI (US)
45AQI (US)
52AQI (US)
17AQI (US)
15AQI (US)
18AQI (US)
7AQI (US)
18AQI (US)
28AQI (US)
24AQI (US)
42AQI (US)
47AQI (US)
49AQI (US)
59AQI (US)
15AQI (US)
32AQI (US)
38AQI (US)
42AQI (US)
34AQI (US)
25AQI (US)
37AQI (US)
20AQI (US)
20AQI (US)
11AQI (US)
22AQI (US)
21AQI (US)
43AQI (US)
17AQI (US)
17AQI (US)
17AQI (US)
17AQI (US)
25AQI (US)
12AQI (US)
14AQI (US)
13AQI (US)
20AQI (US)
18AQI (US)
19AQI (US)
11AQI (US)
8AQI (US)
18AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
15AQI (US)
12AQI (US)
19AQI (US)
14AQI (US)
14AQI (US)
9AQI (US)
12AQI (US)
16AQI (US)
18AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
12AQI (US)
7AQI (US)
14AQI (US)
11AQI (US)
18AQI (US)
19AQI (US)
15AQI (US)
9AQI (US)
18AQI (US)
14AQI (US)
9AQI (US)
5AQI (US)
14AQI (US)
13AQI (US)
12AQI (US)
10AQI (US)
33AQI (US)
62AQI (US)
60AQI (US)
39AQI (US)
47AQI (US)
35AQI (US)
34AQI (US)
40AQI (US)
52AQI (US)
52AQI (US)
38AQI (US)
46AQI (US)
43AQI (US)
34AQI (US)
17AQI (US)
30AQI (US)
30AQI (US)
37AQI (US)
30AQI (US)
37AQI (US)
24AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
13AQI (US)
18AQI (US)
18AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
22AQI (US)
23AQI (US)
49AQI (US)
28AQI (US)
22AQI (US)
18AQI (US)
18AQI (US)
20AQI (US)
28AQI (US)
19AQI (US)
29AQI (US)
32AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
21AQI (US)
20AQI (US)
24AQI (US)
24AQI (US)
15AQI (US)
10AQI (US)
11AQI (US)
11AQI (US)
13AQI (US)
12AQI (US)
23AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
21AQI (US)
20AQI (US)
14AQI (US)
12AQI (US)
18AQI (US)
24AQI (US)
17AQI (US)
26AQI (US)
13AQI (US)
13AQI (US)
14AQI (US)
14AQI (US)
20AQI (US)
13AQI (US)
12AQI (US)
21AQI (US)
14AQI (US)
18AQI (US)
12AQI (US)
12AQI (US)
11AQI (US)
12AQI (US)
20AQI (US)
13AQI (US)
18AQI (US)
34AQI (US)
26AQI (US)
27AQI (US)
15AQI (US)
30AQI (US)
23AQI (US)
18AQI (US)
15AQI (US)
No. of days
202624AQI (US)
Highest AQI (US) recorded in
January34AQI (US)
Lowest AQI (US) recorded in
August15AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
February48AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202418AQI (US)
Highest AQI (US) recorded in
October26AQI (US)
Lowest AQI (US) recorded in
May9AQI (US)
202318AQI (US)
Highest AQI (US) recorded in
December30AQI (US)
Lowest AQI (US) recorded in
July10AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
October33AQI (US)
Lowest AQI (US) recorded in
November27AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Lille's annual 2026 AQI (US) (24) shows an average percentage change of 7.3% (worsened AQI (US)) compared to previous years: 2022 (30), 2023 (18), 2024 (18), 2025 (29).