Monte Chaos, Sines, Setubal, Portugal 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
Monte Chaos, Sines, Setubal, Portugal
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 42 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Monte Chaos, Sines, Setubal, Portugal
6 AM2nd Aug 2025
8 PM
5 AM3rd Aug 2025
37AQI
26AQI
37AQI
29AQI
In the last 24 hours,
Monte Chaos's AQI reached its highest point of 37 at 8 PM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Monte Chaos, Sines, Setubal, Portugal
20°C18/24°C
20°C19/24°C
21°C18/24°C
20°C18/22°C
20°C18/24°C
19°C17/22°C
20°C18/22°C
20°C18/21°C
20°C18/21°C
20°C18/22°C
21°C18/24°C
21°C16/25°C
21°C19/25°C
20°C17/24°C
19°C17/22°C
19°C18/22°C
20°C18/22°C
19°C17/21°C
20°C17/22°C
20°C18/22°C
21°C17/24°C
24°C19/29°C
22°C19/26°C
22°C19/25°C
20°C18/23°C
23°C19/29°C
22°C19/25°C
21°C19/25°C
20°C18/23°C
20°C18/23°C
--°C/°C
33AQI
31AQI
34AQI
32AQI
2025 Days Vs Air Quality
Monte Chaos, Sines, Setubal, Portugal
100%
212
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 215 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
Monte Chaos, Sines, Setubal, Portugal
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI
28AQI
31AQI
26AQI
32AQI
31AQI
25AQI
26AQI
24AQI
20AQI
23AQI
25AQI
32AQI
25AQI
26AQI
39AQI
42AQI
31AQI
32AQI
31AQI
33AQI
32AQI
31AQI
31AQI
30AQI
29AQI
32AQI
35AQI
36AQI
34AQI
29AQI
24AQI
26AQI
31AQI
32AQI
32AQI
34AQI
30AQI
26AQI
21AQI
25AQI
28AQI
29AQI
25AQI
26AQI
28AQI
29AQI
29AQI
31AQI
34AQI
31AQI
27AQI
28AQI
27AQI
27AQI
39AQI
34AQI
42AQI
30AQI
33AQI
34AQI
32AQI
34AQI
29AQI
39AQI
26AQI
31AQI
31AQI
31AQI
32AQI
28AQI
24AQI
21AQI
21AQI
17AQI
17AQI
21AQI
20AQI
22AQI
18AQI
20AQI
22AQI
29AQI
28AQI
27AQI
22AQI
27AQI
32AQI
28AQI
22AQI
26AQI
21AQI
19AQI
19AQI
19AQI
16AQI
16AQI
20AQI
19AQI
26AQI
39AQI
33AQI
26AQI
18AQI
17AQI
15AQI
15AQI
18AQI
16AQI
18AQI
18AQI
17AQI
20AQI
22AQI
24AQI
19AQI
17AQI
19AQI
24AQI
17AQI
17AQI
24AQI
38AQI
28AQI
25AQI
23AQI
21AQI
19AQI
24AQI
21AQI
23AQI
21AQI
23AQI
24AQI
26AQI
26AQI
27AQI
29AQI
28AQI
23AQI
21AQI
22AQI
24AQI
27AQI
25AQI
22AQI
25AQI
25AQI
37AQI
43AQI
44AQI
41AQI
34AQI
33AQI
31AQI
29AQI
29AQI
26AQI
31AQI
36AQI
40AQI
41AQI
42AQI
28AQI
30AQI
33AQI
35AQI
39AQI
43AQI
42AQI
44AQI
41AQI
41AQI
35AQI
33AQI
34AQI
33AQI
34AQI
43AQI
49AQI
50AQI
52AQI
43AQI
41AQI
46AQI
50AQI
49AQI
46AQI
44AQI
42AQI
36AQI
27AQI
25AQI
23AQI
21AQI
27AQI
28AQI
35AQI
37AQI
28AQI
23AQI
24AQI
23AQI
19AQI
23AQI
26AQI
30AQI
32AQI
31AQI
29AQI
40AQI
47AQI
42AQI
30AQI
29AQI
26AQI
20AQI
26AQI
37AQI
34AQI
42AQI
No. of days
202529AQI
Highest AQI recorded in
August42AQI
Lowest AQI recorded in
April20AQI
202433AQI
Highest AQI recorded in
February67AQI
Lowest AQI recorded in
June24AQI
202329AQI
Highest AQI recorded in
January71AQI
Lowest AQI recorded in
December20AQI
202244AQI
Highest AQI recorded in
July92AQI
Lowest AQI recorded in
January21AQI
202123AQI
Highest AQI recorded in
March32AQI
Lowest AQI recorded in
July0AQI
202025AQI
Highest AQI recorded in
May33AQI
Lowest AQI recorded in
December13AQI
Most & Least Polluted Years Over the Last 6 Years
Monte Chaos's annual 2025 AQI (29) shows an average percentage change of -0.7% (improved AQI) compared to previous years: 2020 (25), 2021 (23), 2022 (44), 2023 (29), 2024 (33).