San Salvador, Hidalgo, Mexico Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
San Salvador, Hidalgo, Mexico
AQI Trends: Highest and Lowest
Same Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 66 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Oct - 11th Oct 2025
San Salvador, Hidalgo, Mexico
7 AM10th Oct 2025
7 PM
6 AM11th Oct 2025
80AQI
59AQI
81AQI
57AQI
In the last 24 hours,
San Salvador's AQI reached its highest point of 81 at 3 AM during the Night, while the lowest point, 57, was recorded at 9 PM during the Night between 10th Oct and 11th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
San Salvador, Hidalgo, Mexico
15°C11/22°C
14°C11/20°C
15°C9/21°C
15°C9/21°C
13°C8/19°C
14°C11/20°C
14°C11/21°C
15°C11/20°C
15°C12/24°C
14°C7/22°C
15°C10/21°C
15°C9/23°C
15°C11/22°C
16°C13/22°C
15°C12/21°C
15°C11/20°C
16°C12/20°C
15°C10/19°C
15°C11/21°C
15°C13/20°C
14°C8/20°C
14°C10/20°C
13°C9/19°C
13°C8/19°C
14°C12/19°C
15°C10/21°C
14°C11/20°C
13°C12/16°C
14°C12/19°C
15°C11/19°C
--°C/°C
53AQI
49AQI
54AQI
48AQI
2025 Days Vs Air Quality
San Salvador, Hidalgo, Mexico
39%
109
61%
172
0.7%
2
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Under WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2025, 39% of 284 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
San Salvador, Hidalgo, Mexico
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
81AQI
74AQI
79AQI
70AQI
72AQI
71AQI
72AQI
66AQI
68AQI
61AQI
59AQI
56AQI
55AQI
56AQI
57AQI
58AQI
64AQI
64AQI
63AQI
63AQI
62AQI
62AQI
62AQI
61AQI
62AQI
69AQI
67AQI
68AQI
73AQI
69AQI
69AQI
59AQI
65AQI
60AQI
61AQI
67AQI
70AQI
67AQI
68AQI
67AQI
68AQI
73AQI
66AQI
62AQI
46AQI
51AQI
50AQI
35AQI
56AQI
42AQI
38AQI
35AQI
45AQI
35AQI
39AQI
39AQI
49AQI
58AQI
55AQI
53AQI
50AQI
56AQI
60AQI
68AQI
65AQI
60AQI
60AQI
61AQI
60AQI
55AQI
58AQI
75AQI
77AQI
68AQI
76AQI
65AQI
71AQI
72AQI
107AQI
67AQI
69AQI
67AQI
71AQI
75AQI
72AQI
72AQI
66AQI
69AQI
65AQI
69AQI
75AQI
78AQI
74AQI
69AQI
64AQI
67AQI
62AQI
59AQI
62AQI
59AQI
56AQI
55AQI
56AQI
53AQI
61AQI
57AQI
66AQI
68AQI
73AQI
81AQI
81AQI
85AQI
78AQI
84AQI
83AQI
84AQI
69AQI
67AQI
76AQI
80AQI
72AQI
75AQI
79AQI
78AQI
70AQI
70AQI
75AQI
75AQI
69AQI
48AQI
58AQI
58AQI
68AQI
71AQI
68AQI
68AQI
80AQI
80AQI
76AQI
78AQI
80AQI
78AQI
73AQI
71AQI
60AQI
56AQI
60AQI
50AQI
41AQI
47AQI
49AQI
53AQI
53AQI
51AQI
54AQI
58AQI
55AQI
49AQI
56AQI
56AQI
59AQI
60AQI
45AQI
32AQI
30AQI
25AQI
30AQI
33AQI
33AQI
31AQI
25AQI
33AQI
35AQI
27AQI
33AQI
33AQI
32AQI
34AQI
30AQI
25AQI
25AQI
26AQI
24AQI
32AQI
43AQI
54AQI
58AQI
46AQI
50AQI
41AQI
55AQI
52AQI
57AQI
51AQI
51AQI
48AQI
52AQI
59AQI
55AQI
51AQI
52AQI
52AQI
58AQI
49AQI
33AQI
34AQI
38AQI
28AQI
28AQI
33AQI
30AQI
34AQI
32AQI
37AQI
29AQI
38AQI
41AQI
39AQI
26AQI
33AQI
55AQI
54AQI
47AQI
40AQI
43AQI
55AQI
38AQI
45AQI
50AQI
29AQI
30AQI
31AQI
38AQI
43AQI
43AQI
35AQI
35AQI
38AQI
35AQI
32AQI
42AQI
38AQI
39AQI
35AQI
29AQI
33AQI
39AQI
37AQI
49AQI
45AQI
112AQI
48AQI
37AQI
24AQI
24AQI
24AQI
40AQI
41AQI
41AQI
34AQI
28AQI
29AQI
30AQI
28AQI
30AQI
34AQI
34AQI
74AQI
66AQI
32AQI
27AQI
49AQI
62AQI
66AQI
67AQI
73AQI
68AQI
77AQI
77AQI
69AQI
50AQI
59AQI
66AQI
66AQI
55AQI
67AQI
69AQI
67AQI
40AQI
44AQI
39AQI
41AQI
67AQI
No. of days
202555AQI
Highest AQI recorded in
April69AQI
Lowest AQI recorded in
August39AQI
202456AQI
Highest AQI recorded in
May85AQI
Lowest AQI recorded in
August32AQI
202341AQI
Highest AQI recorded in
April65AQI
Lowest AQI recorded in
February15AQI
202234AQI
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
August12AQI
202153AQI
Highest AQI recorded in
April75AQI
Lowest AQI recorded in
September36AQI
202055AQI
Highest AQI recorded in
August85AQI
Lowest AQI recorded in
June37AQI
Most & Least Polluted Years Over the Last 6 Years
San Salvador's annual 2025 AQI (55) shows an average percentage change of 18.4% (worsened AQI) compared to previous years: 2020 (55), 2021 (53), 2022 (34), 2023 (41), 2024 (56).