Sonega, Sines, Setubal, Portugal 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
Sonega, Sines, Setubal, Portugal
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 19 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Sonega, Sines, Setubal, Portugal
7 AM29th Sep 2025
7 PM
6 AM30th Sep 2025
28AQI
14AQI
50AQI
16AQI
In the last 24 hours,
Sonega's AQI reached its highest point of 50 at 10 PM during the Night, while the lowest point, 14, was recorded at 6 PM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Sonega, Sines, Setubal, Portugal
20°C18/22°C
19°C17/21°C
19°C16/22°C
20°C18/23°C
20°C17/23°C
20°C17/25°C
20°C18/23°C
19°C18/21°C
19°C17/21°C
19°C17/21°C
20°C19/22°C
21°C18/23°C
21°C18/25°C
20°C18/23°C
21°C18/23°C
21°C18/24°C
20°C16/24°C
21°C19/25°C
22°C20/26°C
21°C19/25°C
20°C17/23°C
18°C16/21°C
17°C14/21°C
18°C14/23°C
19°C16/23°C
19°C16/23°C
18°C16/22°C
18°C16/20°C
19°C18/19°C
19°C16/22°C
--°C/°C
26AQI
23AQI
27AQI
24AQI
2025 Days Vs Air Quality
Sonega, Sines, Setubal, Portugal
94%
257
6%
15
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 273 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
Sonega, Sines, Setubal, Portugal
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
42AQI
29AQI
36AQI
34AQI
35AQI
33AQI
30AQI
35AQI
29AQI
26AQI
27AQI
26AQI
38AQI
43AQI
33AQI
38AQI
38AQI
36AQI
37AQI
38AQI
35AQI
35AQI
33AQI
32AQI
32AQI
34AQI
31AQI
33AQI
34AQI
34AQI
31AQI
28AQI
30AQI
31AQI
28AQI
32AQI
31AQI
31AQI
29AQI
24AQI
25AQI
29AQI
31AQI
28AQI
28AQI
30AQI
30AQI
30AQI
33AQI
33AQI
30AQI
29AQI
32AQI
31AQI
31AQI
38AQI
34AQI
40AQI
32AQI
32AQI
31AQI
31AQI
36AQI
29AQI
39AQI
31AQI
36AQI
35AQI
35AQI
36AQI
33AQI
25AQI
21AQI
21AQI
17AQI
17AQI
19AQI
21AQI
24AQI
19AQI
21AQI
24AQI
26AQI
30AQI
32AQI
37AQI
34AQI
37AQI
35AQI
31AQI
26AQI
22AQI
18AQI
19AQI
18AQI
16AQI
16AQI
17AQI
20AQI
31AQI
35AQI
30AQI
22AQI
23AQI
18AQI
15AQI
14AQI
18AQI
18AQI
17AQI
20AQI
21AQI
20AQI
22AQI
24AQI
24AQI
22AQI
21AQI
25AQI
22AQI
21AQI
26AQI
40AQI
28AQI
26AQI
25AQI
24AQI
23AQI
22AQI
23AQI
23AQI
23AQI
22AQI
22AQI
24AQI
27AQI
27AQI
27AQI
28AQI
27AQI
25AQI
23AQI
29AQI
30AQI
28AQI
23AQI
24AQI
32AQI
40AQI
45AQI
53AQI
50AQI
44AQI
38AQI
29AQI
24AQI
25AQI
24AQI
33AQI
48AQI
53AQI
52AQI
52AQI
30AQI
37AQI
37AQI
41AQI
47AQI
47AQI
44AQI
49AQI
52AQI
53AQI
38AQI
33AQI
33AQI
33AQI
34AQI
42AQI
47AQI
47AQI
48AQI
41AQI
42AQI
46AQI
50AQI
46AQI
43AQI
41AQI
40AQI
36AQI
26AQI
25AQI
24AQI
26AQI
28AQI
42AQI
49AQI
48AQI
34AQI
25AQI
25AQI
27AQI
31AQI
25AQI
31AQI
35AQI
36AQI
40AQI
37AQI
47AQI
50AQI
46AQI
35AQI
41AQI
36AQI
45AQI
45AQI
44AQI
46AQI
46AQI
48AQI
52AQI
58AQI
59AQI
57AQI
54AQI
53AQI
55AQI
55AQI
51AQI
40AQI
40AQI
42AQI
49AQI
43AQI
35AQI
35AQI
31AQI
26AQI
24AQI
26AQI
22AQI
20AQI
22AQI
26AQI
25AQI
24AQI
31AQI
34AQI
26AQI
21AQI
24AQI
26AQI
24AQI
23AQI
22AQI
22AQI
25AQI
29AQI
30AQI
30AQI
34AQI
37AQI
23AQI
19AQI
20AQI
29AQI
36AQI
22AQI
11AQI
19AQI
34AQI
31AQI
29AQI
21AQI
28AQI
41AQI
37AQI
43AQI
25AQI
No. of days
202532AQI
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
April21AQI
202426AQI
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
May12AQI
202331AQI
Highest AQI recorded in
February41AQI
Lowest AQI recorded in
August26AQI
202235AQI
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
December29AQI
202133AQI
Highest AQI recorded in
March39AQI
Lowest AQI recorded in
January27AQI
202029AQI
Highest AQI recorded in
October41AQI
Lowest AQI recorded in
August18AQI
Most & Least Polluted Years Over the Last 6 Years
Sonega's annual 2025 AQI (32) shows an average percentage change of 5.5% (worsened AQI) compared to previous years: 2020 (29), 2021 (33), 2022 (35), 2023 (31), 2024 (26).