Marilia, State Of Sao Paulo, Brazil 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
Marilia, State Of Sao Paulo, Brazil
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 58 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Marilia, State Of Sao Paulo, Brazil
6 AM17th Sep 2025
6 PM
5 AM18th Sep 2025
56AQI
52AQI
57AQI
56AQI
In the last 24 hours,
Marilia's AQI reached its highest point of 57 at 9 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Marilia, State Of Sao Paulo, Brazil
22°C12/33°C
24°C18/31°C
25°C17/34°C
26°C19/35°C
25°C17/35°C
24°C16/33°C
22°C14/31°C
21°C15/31°C
21°C13/31°C
22°C13/32°C
21°C15/31°C
21°C14/30°C
22°C13/31°C
23°C15/32°C
23°C17/31°C
24°C18/32°C
24°C16/32°C
25°C16/34°C
22°C14/34°C
22°C13/33°C
25°C14/36°C
24°C16/33°C
23°C13/35°C
24°C13/35°C
24°C16/35°C
21°C12/32°C
22°C13/34°C
24°C13/36°C
24°C15/35°C
25°C17/34°C
--°C/°C
58AQI
58AQI
59AQI
59AQI
2025 Days Vs Air Quality
Marilia, State Of Sao Paulo, Brazil
80%
207
20%
52
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 261 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Marilia, State Of Sao Paulo, Brazil
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
30AQI
31AQI
30AQI
31AQI
32AQI
32AQI
32AQI
34AQI
32AQI
34AQI
33AQI
34AQI
36AQI
32AQI
40AQI
31AQI
36AQI
31AQI
34AQI
32AQI
30AQI
35AQI
33AQI
34AQI
35AQI
33AQI
37AQI
33AQI
38AQI
32AQI
36AQI
29AQI
32AQI
31AQI
31AQI
32AQI
31AQI
31AQI
32AQI
33AQI
36AQI
34AQI
35AQI
34AQI
34AQI
37AQI
37AQI
39AQI
39AQI
42AQI
43AQI
48AQI
43AQI
48AQI
44AQI
45AQI
47AQI
49AQI
49AQI
50AQI
49AQI
52AQI
47AQI
47AQI
44AQI
45AQI
50AQI
44AQI
50AQI
48AQI
53AQI
50AQI
51AQI
49AQI
50AQI
48AQI
48AQI
45AQI
44AQI
44AQI
40AQI
41AQI
41AQI
40AQI
43AQI
43AQI
45AQI
46AQI
43AQI
44AQI
45AQI
44AQI
42AQI
40AQI
38AQI
32AQI
26AQI
34AQI
29AQI
35AQI
32AQI
37AQI
34AQI
36AQI
32AQI
36AQI
30AQI
19AQI
28AQI
17AQI
28AQI
24AQI
33AQI
27AQI
32AQI
30AQI
34AQI
31AQI
34AQI
31AQI
33AQI
33AQI
34AQI
35AQI
37AQI
40AQI
40AQI
41AQI
39AQI
35AQI
31AQI
30AQI
29AQI
31AQI
33AQI
36AQI
35AQI
37AQI
38AQI
42AQI
47AQI
41AQI
42AQI
41AQI
46AQI
43AQI
40AQI
33AQI
40AQI
39AQI
45AQI
42AQI
46AQI
41AQI
44AQI
36AQI
38AQI
38AQI
31AQI
33AQI
35AQI
31AQI
28AQI
28AQI
30AQI
32AQI
37AQI
45AQI
49AQI
54AQI
53AQI
53AQI
52AQI
43AQI
36AQI
37AQI
41AQI
42AQI
41AQI
43AQI
41AQI
35AQI
32AQI
30AQI
31AQI
34AQI
35AQI
36AQI
37AQI
38AQI
43AQI
45AQI
48AQI
48AQI
50AQI
53AQI
54AQI
57AQI
57AQI
55AQI
55AQI
57AQI
55AQI
54AQI
54AQI
54AQI
54AQI
52AQI
40AQI
39AQI
39AQI
48AQI
57AQI
56AQI
55AQI
56AQI
44AQI
51AQI
51AQI
46AQI
39AQI
34AQI
35AQI
45AQI
53AQI
53AQI
51AQI
55AQI
58AQI
59AQI
62AQI
62AQI
65AQI
71AQI
74AQI
61AQI
58AQI
48AQI
46AQI
46AQI
49AQI
46AQI
45AQI
47AQI
51AQI
50AQI
61AQI
60AQI
54AQI
53AQI
59AQI
64AQI
73AQI
84AQI
73AQI
68AQI
60AQI
58AQI
33AQI
38AQI
46AQI
33AQI
37AQI
40AQI
46AQI
53AQI
60AQI
No. of days
202542AQI
Highest AQI recorded in
September60AQI
Lowest AQI recorded in
April33AQI
202432AQI
Highest AQI recorded in
September67AQI
Lowest AQI recorded in
February18AQI
202327AQI
Highest AQI recorded in
November44AQI
Lowest AQI recorded in
February17AQI
202224AQI
Highest AQI recorded in
July37AQI
Lowest AQI recorded in
December19AQI
202126AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
November17AQI
202030AQI
Highest AQI recorded in
September43AQI
Lowest AQI recorded in
December22AQI
Most & Least Polluted Years Over the Last 6 Years
Marilia's annual 2025 AQI (42) shows an average percentage change of 51.7% (worsened AQI) compared to previous years: 2020 (30), 2021 (26), 2022 (24), 2023 (27), 2024 (32).