Quito, Pichincha, Ecuador 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
Quito, Pichincha, Ecuador
AQI Trends: Highest and Lowest
Same Day Analysis (29th September):
On this day, AQI across the 4 years varied significantly: 2026 ranks 4th highest AQI at 26 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 28th Sep - 29th Sep 2026
Quito, Pichincha, Ecuador
6 AM28th Sep 2026
6 PM
5 AM29th Sep 2026
38AQI
15AQI
29AQI
13AQI
In the last 24 hours,
Quito's AQI reached its highest point of 38 at 6 AM during the Day, while the lowest point, 13, was recorded at 5 AM during the Night between 28th Sep and 29th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Quito, Pichincha, Ecuador
13°C9/20°C
14°C7/22°C
12°C8/18°C
12°C9/15°C
13°C8/20°C
13°C8/20°C
13°C9/19°C
13°C8/17°C
14°C8/21°C
14°C9/20°C
14°C9/22°C
14°C8/20°C
15°C10/22°C
15°C9/23°C
14°C10/21°C
13°C10/18°C
14°C9/21°C
15°C9/22°C
15°C10/20°C
14°C10/18°C
14°C10/20°C
14°C9/21°C
13°C10/20°C
13°C9/20°C
14°C10/21°C
13°C9/19°C
13°C9/19°C
12°C8/18°C
13°C9/19°C
14°C9/21°C
27AQI
20AQI
27AQI
20AQI
2026 Days Vs Air Quality
Quito, Pichincha, Ecuador
99%
267
0.7%
2
Total number of days with different AQI categories in last 273 days in 2026 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2026, 99% 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
Quito, Pichincha, Ecuador
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
45AQI (US)
52AQI (US)
45AQI (US)
54AQI (US)
44AQI (US)
41AQI (US)
47AQI (US)
45AQI (US)
45AQI (US)
48AQI (US)
49AQI (US)
30AQI (US)
21AQI (US)
23AQI (US)
21AQI (US)
22AQI (US)
21AQI (US)
17AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
37AQI (US)
37AQI (US)
39AQI (US)
40AQI (US)
37AQI (US)
33AQI (US)
37AQI (US)
36AQI (US)
27AQI (US)
33AQI (US)
32AQI (US)
38AQI (US)
37AQI (US)
39AQI (US)
37AQI (US)
33AQI (US)
32AQI (US)
34AQI (US)
33AQI (US)
31AQI (US)
33AQI (US)
38AQI (US)
40AQI (US)
40AQI (US)
38AQI (US)
36AQI (US)
34AQI (US)
37AQI (US)
36AQI (US)
33AQI (US)
32AQI (US)
29AQI (US)
33AQI (US)
33AQI (US)
30AQI (US)
33AQI (US)
31AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
39AQI (US)
41AQI (US)
38AQI (US)
39AQI (US)
34AQI (US)
34AQI (US)
37AQI (US)
33AQI (US)
31AQI (US)
33AQI (US)
32AQI (US)
30AQI (US)
34AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
30AQI (US)
31AQI (US)
28AQI (US)
32AQI (US)
37AQI (US)
33AQI (US)
29AQI (US)
33AQI (US)
40AQI (US)
33AQI (US)
32AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
30AQI (US)
25AQI (US)
23AQI (US)
25AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
26AQI (US)
32AQI (US)
36AQI (US)
30AQI (US)
29AQI (US)
29AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
25AQI (US)
29AQI (US)
29AQI (US)
31AQI (US)
29AQI (US)
25AQI (US)
22AQI (US)
25AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
23AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
27AQI (US)
24AQI (US)
27AQI (US)
31AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
16AQI (US)
30AQI (US)
39AQI (US)
32AQI (US)
33AQI (US)
23AQI (US)
33AQI (US)
32AQI (US)
36AQI (US)
36AQI (US)
37AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
32AQI (US)
34AQI (US)
23AQI (US)
19AQI (US)
17AQI (US)
26AQI (US)
20AQI (US)
23AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
18AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
35AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
36AQI (US)
33AQI (US)
25AQI (US)
30AQI (US)
33AQI (US)
36AQI (US)
34AQI (US)
28AQI (US)
34AQI (US)
36AQI (US)
34AQI (US)
33AQI (US)
37AQI (US)
30AQI (US)
17AQI (US)
25AQI (US)
35AQI (US)
35AQI (US)
32AQI (US)
32AQI (US)
27AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
25AQI (US)
19AQI (US)
18AQI (US)
20AQI (US)
21AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
27AQI (US)
22AQI (US)
20AQI (US)
29AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
17AQI (US)
24AQI (US)
26AQI (US)
19AQI (US)
24AQI (US)
29AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
26AQI (US)
21AQI (US)
22AQI (US)
19AQI (US)
23AQI (US)
26AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
26AQI (US)
23AQI (US)
17AQI (US)
22AQI (US)
24AQI (US)
28AQI (US)
20AQI (US)
24AQI (US)
25AQI (US)
23AQI (US)
20AQI (US)
20AQI (US)
18AQI (US)
20AQI (US)
23AQI (US)
18AQI (US)
19AQI (US)
23AQI (US)
28AQI (US)
18AQI (US)
25AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
35AQI (US)
34AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
January35AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202549AQI (US)
Highest AQI (US) recorded in
October58AQI (US)
Lowest AQI (US) recorded in
June36AQI (US)
202455AQI (US)
Highest AQI (US) recorded in
September71AQI (US)
Lowest AQI (US) recorded in
July45AQI (US)
202353AQI (US)
Highest AQI (US) recorded in
September67AQI (US)
Lowest AQI (US) recorded in
July45AQI (US)
202252AQI (US)
Highest AQI (US) recorded in
May57AQI (US)
Lowest AQI (US) recorded in
February50AQI (US)
202154AQI (US)
Highest AQI (US) recorded in
October66AQI (US)
Lowest AQI (US) recorded in
January47AQI (US)
202054AQI (US)
Highest AQI (US) recorded in
November74AQI (US)
Lowest AQI (US) recorded in
April42AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Quito's annual 2026 AQI (US) (29) shows an average percentage change of -45.03% (improved AQI (US)) compared to previous years: 2020 (54), 2021 (54), 2022 (52), 2023 (53), 2024 (55), 2025 (49).