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 (6th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 4th highest AQI at 20 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Lille, Viljandi, Viljandimaa, Estonia
4 AM5th Aug 2026
9 PM
3 AM6th Aug 2026
14AQI
12AQI
17AQI
12AQI
In the last 24 hours,
Lille's AQI reached its highest point of 17 at 10 PM during the Night, while the lowest point, 12, was recorded at 12 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Lille, Viljandi, Viljandimaa, Estonia
12°C12/13°C
14°C11/19°C
16°C11/22°C
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
20AQI
15AQI
17AQI
16AQI
2026 Days Vs Air Quality
Lille, Viljandi, Viljandimaa, Estonia
95%
205
5%
10
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 218 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)
34AQI (US)
26AQI (US)
27AQI (US)
15AQI (US)
30AQI (US)
23AQI (US)
18AQI (US)
14AQI (US)
No. of days
202625AQI (US)
Highest AQI (US) recorded in
January34AQI (US)
Lowest AQI (US) recorded in
August14AQI (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) (25) shows an average percentage change of 11.8% (worsened AQI (US)) compared to previous years: 2022 (30), 2023 (18), 2024 (18), 2025 (29).