Leon, Guanajuato, Mexico 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
Leon, Guanajuato, Mexico
AQI Trends: Highest and Lowest
Same Day Analysis (29th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 24 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Day & Night AQI Trend: 28th Sep - 29th Sep 2026
Leon, Guanajuato, Mexico
6 AM28th Sep 2026
6 PM
5 AM29th Sep 2026
40AQI
17AQI
21AQI
14AQI
In the last 24 hours,
Leon's AQI reached its highest point of 40 at 1 PM during the Day, while the lowest point, 14, was recorded at 9 PM during the Night between 28th Sep and 29th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Leon, Guanajuato, Mexico
19°C14/27°C
18°C15/27°C
18°C16/25°C
19°C14/26°C
20°C14/28°C
20°C14/28°C
20°C14/28°C
19°C15/26°C
18°C14/26°C
19°C15/26°C
17°C14/25°C
19°C14/28°C
19°C15/27°C
20°C14/27°C
19°C14/26°C
19°C14/25°C
19°C14/26°C
19°C13/26°C
19°C14/25°C
19°C13/26°C
20°C14/28°C
20°C14/29°C
19°C13/28°C
19°C14/27°C
20°C13/28°C
20°C13/29°C
20°C13/29°C
20°C14/30°C
21°C14/30°C
21°C15/30°C
28AQI
24AQI
30AQI
24AQI
2026 Days Vs Air Quality
Leon, Guanajuato, Mexico
99%
267
0.7%
2
Total number of days with different AQI categories in last 272 days in 2026 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2026, 99% of 272 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
Leon, Guanajuato, Mexico
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI (US)
30AQI (US)
34AQI (US)
31AQI (US)
37AQI (US)
36AQI (US)
41AQI (US)
39AQI (US)
33AQI (US)
40AQI (US)
22AQI (US)
52AQI (US)
45AQI (US)
36AQI (US)
29AQI (US)
34AQI (US)
35AQI (US)
25AQI (US)
27AQI (US)
37AQI (US)
26AQI (US)
37AQI (US)
38AQI (US)
40AQI (US)
42AQI (US)
38AQI (US)
37AQI (US)
38AQI (US)
37AQI (US)
29AQI (US)
37AQI (US)
34AQI (US)
38AQI (US)
39AQI (US)
41AQI (US)
34AQI (US)
33AQI (US)
33AQI (US)
37AQI (US)
37AQI (US)
28AQI (US)
27AQI (US)
24AQI (US)
29AQI (US)
36AQI (US)
28AQI (US)
30AQI (US)
33AQI (US)
37AQI (US)
42AQI (US)
41AQI (US)
36AQI (US)
37AQI (US)
28AQI (US)
30AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
37AQI (US)
33AQI (US)
32AQI (US)
31AQI (US)
31AQI (US)
26AQI (US)
31AQI (US)
28AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
30AQI (US)
57AQI (US)
17AQI (US)
27AQI (US)
27AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
28AQI (US)
40AQI (US)
28AQI (US)
19AQI (US)
22AQI (US)
18AQI (US)
17AQI (US)
20AQI (US)
15AQI (US)
18AQI (US)
18AQI (US)
21AQI (US)
19AQI (US)
23AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
23AQI (US)
16AQI (US)
21AQI (US)
27AQI (US)
33AQI (US)
28AQI (US)
34AQI (US)
38AQI (US)
32AQI (US)
28AQI (US)
21AQI (US)
21AQI (US)
17AQI (US)
19AQI (US)
23AQI (US)
37AQI (US)
31AQI (US)
22AQI (US)
21AQI (US)
17AQI (US)
17AQI (US)
24AQI (US)
19AQI (US)
21AQI (US)
20AQI (US)
30AQI (US)
36AQI (US)
30AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
32AQI (US)
45AQI (US)
31AQI (US)
25AQI (US)
30AQI (US)
32AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
24AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
35AQI (US)
26AQI (US)
30AQI (US)
36AQI (US)
33AQI (US)
37AQI (US)
41AQI (US)
32AQI (US)
33AQI (US)
33AQI (US)
27AQI (US)
30AQI (US)
33AQI (US)
33AQI (US)
27AQI (US)
38AQI (US)
44AQI (US)
37AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
30AQI (US)
32AQI (US)
28AQI (US)
32AQI (US)
31AQI (US)
34AQI (US)
35AQI (US)
35AQI (US)
36AQI (US)
27AQI (US)
27AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
24AQI (US)
32AQI (US)
35AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
25AQI (US)
33AQI (US)
25AQI (US)
25AQI (US)
32AQI (US)
31AQI (US)
30AQI (US)
37AQI (US)
35AQI (US)
28AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
32AQI (US)
24AQI (US)
25AQI (US)
34AQI (US)
32AQI (US)
25AQI (US)
26AQI (US)
29AQI (US)
39AQI (US)
38AQI (US)
29AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
23AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
49AQI (US)
44AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
24AQI (US)
36AQI (US)
33AQI (US)
27AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
33AQI (US)
30AQI (US)
26AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
January36AQI (US)
Lowest AQI (US) recorded in
May25AQI (US)
202551AQI (US)
Highest AQI (US) recorded in
May70AQI (US)
Lowest AQI (US) recorded in
December35AQI (US)
202447AQI (US)
Highest AQI (US) recorded in
December83AQI (US)
Lowest AQI (US) recorded in
October38AQI (US)
202335AQI (US)
Highest AQI (US) recorded in
February62AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
December64AQI (US)
Lowest AQI (US) recorded in
August14AQI (US)
202137AQI (US)
Highest AQI (US) recorded in
December55AQI (US)
Lowest AQI (US) recorded in
September19AQI (US)
202033AQI (US)
Highest AQI (US) recorded in
December47AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Leon's annual 2026 AQI (US) (29) shows an average percentage change of -25.6% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (37), 2022 (37), 2023 (35), 2024 (47), 2025 (51).