Piracicaba, 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
Piracicaba, 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 1st highest AQI at 64 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Piracicaba, State Of Sao Paulo, Brazil
6 AM16th Sep 2025
6 PM
5 AM17th Sep 2025
70AQI
59AQI
64AQI
54AQI
In the last 24 hours,
Piracicaba's AQI reached its highest point of 70 at 1 PM during the Day, while the lowest point, 54, was recorded at 4 AM during the Night between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Piracicaba, State Of Sao Paulo, Brazil
20°C13/30°C
21°C11/31°C
25°C18/33°C
26°C17/34°C
26°C18/35°C
25°C17/34°C
21°C14/32°C
21°C12/33°C
19°C13/29°C
20°C14/30°C
21°C13/31°C
19°C15/26°C
20°C13/29°C
21°C13/30°C
23°C14/32°C
23°C15/31°C
23°C15/31°C
23°C15/31°C
24°C16/33°C
19°C14/28°C
21°C15/31°C
24°C14/34°C
25°C16/32°C
22°C12/32°C
22°C11/34°C
21°C13/31°C
19°C12/30°C
20°C11/32°C
22°C12/34°C
22°C14/32°C
--°C/°C
66AQI
61AQI
65AQI
63AQI
2025 Days Vs Air Quality
Piracicaba, State Of Sao Paulo, Brazil
63%
163
37%
96
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 260 days were within WHO’s safe air quality limits, and 37% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Piracicaba, State Of Sao Paulo, Brazil
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI
35AQI
29AQI
30AQI
30AQI
40AQI
44AQI
36AQI
38AQI
31AQI
37AQI
36AQI
30AQI
38AQI
33AQI
41AQI
26AQI
29AQI
33AQI
27AQI
37AQI
39AQI
42AQI
34AQI
41AQI
32AQI
33AQI
34AQI
36AQI
37AQI
26AQI
25AQI
25AQI
22AQI
30AQI
33AQI
40AQI
43AQI
42AQI
45AQI
42AQI
39AQI
43AQI
35AQI
46AQI
48AQI
43AQI
48AQI
50AQI
41AQI
47AQI
55AQI
46AQI
35AQI
39AQI
50AQI
47AQI
53AQI
53AQI
52AQI
47AQI
49AQI
47AQI
44AQI
48AQI
43AQI
40AQI
50AQI
48AQI
45AQI
46AQI
48AQI
45AQI
39AQI
37AQI
45AQI
46AQI
39AQI
34AQI
42AQI
40AQI
44AQI
31AQI
54AQI
51AQI
49AQI
50AQI
51AQI
51AQI
45AQI
49AQI
56AQI
40AQI
39AQI
28AQI
26AQI
24AQI
37AQI
51AQI
36AQI
39AQI
38AQI
44AQI
35AQI
36AQI
40AQI
39AQI
44AQI
41AQI
28AQI
37AQI
33AQI
46AQI
55AQI
28AQI
40AQI
45AQI
42AQI
33AQI
40AQI
40AQI
46AQI
50AQI
52AQI
48AQI
48AQI
54AQI
56AQI
55AQI
56AQI
29AQI
31AQI
32AQI
35AQI
40AQI
47AQI
53AQI
48AQI
49AQI
60AQI
64AQI
69AQI
49AQI
51AQI
51AQI
57AQI
53AQI
46AQI
31AQI
50AQI
57AQI
64AQI
58AQI
48AQI
40AQI
40AQI
37AQI
46AQI
46AQI
38AQI
34AQI
35AQI
35AQI
32AQI
43AQI
46AQI
52AQI
55AQI
62AQI
62AQI
61AQI
66AQI
65AQI
64AQI
39AQI
42AQI
49AQI
50AQI
53AQI
51AQI
56AQI
42AQI
31AQI
30AQI
32AQI
48AQI
56AQI
48AQI
59AQI
59AQI
58AQI
60AQI
65AQI
58AQI
58AQI
67AQI
69AQI
74AQI
84AQI
64AQI
70AQI
74AQI
73AQI
72AQI
73AQI
68AQI
61AQI
70AQI
59AQI
39AQI
51AQI
50AQI
55AQI
68AQI
66AQI
64AQI
67AQI
37AQI
52AQI
74AQI
48AQI
45AQI
37AQI
47AQI
63AQI
71AQI
57AQI
58AQI
59AQI
67AQI
63AQI
65AQI
79AQI
91AQI
84AQI
92AQI
60AQI
58AQI
49AQI
43AQI
44AQI
56AQI
47AQI
46AQI
53AQI
47AQI
53AQI
71AQI
60AQI
44AQI
57AQI
68AQI
80AQI
88AQI
97AQI
69AQI
61AQI
61AQI
64AQI
35AQI
42AQI
45AQI
39AQI
49AQI
49AQI
59AQI
60AQI
64AQI
No. of days
202548AQI
Highest AQI recorded in
September64AQI
Lowest AQI recorded in
January35AQI
202451AQI
Highest AQI recorded in
September76AQI
Lowest AQI recorded in
January35AQI
202346AQI
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
January30AQI
202244AQI
Highest AQI recorded in
August75AQI
Lowest AQI recorded in
January28AQI
202146AQI
Highest AQI recorded in
September72AQI
Lowest AQI recorded in
April26AQI
202053AQI
Highest AQI recorded in
September83AQI
Lowest AQI recorded in
March29AQI
Most & Least Polluted Years Over the Last 6 Years
Piracicaba's annual 2025 AQI (48) shows an average percentage change of 0.5% (worsened AQI) compared to previous years: 2020 (53), 2021 (46), 2022 (44), 2023 (46), 2024 (51).