Otay Mesa, San Diego, California, United States 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
Otay Mesa, San Diego, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (15th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 27 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 15th Oct - 16th Oct 2025
Otay Mesa, San Diego, California, United States
6 AM15th Oct 2025
6 PM
5 AM16th Oct 2025
54AQI
16AQI
37AQI
9AQI
In the last 24 hours,
Otay Mesa's AQI reached its highest point of 54 at 7 AM during the Day, while the lowest point, 9, was recorded at 8 PM during the Night between 15th Oct and 16th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Otay Mesa, San Diego, California, United States
26°C21/32°C
24°C22/26°C
24°C22/28°C
23°C20/28°C
22°C20/27°C
22°C17/28°C
22°C18/31°C
22°C17/31°C
21°C18/29°C
20°C17/25°C
19°C17/22°C
20°C18/26°C
20°C16/26°C
20°C16/25°C
20°C17/25°C
20°C14/27°C
19°C14/26°C
19°C15/24°C
19°C14/25°C
18°C13/23°C
18°C16/21°C
18°C14/23°C
18°C15/23°C
20°C15/28°C
21°C17/30°C
21°C16/30°C
18°C13/25°C
16°C13/20°C
17°C13/21°C
16°C13/20°C
--°C/°C
67AQI
49AQI
54AQI
43AQI
2025 Days Vs Air Quality
Otay Mesa, San Diego, California, United States
39%
79
61%
125
Total number of days with different AQI categories in last 289 days in 2025 (76 days remaining)
Under WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2025, 39% of 289 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
Otay Mesa, San Diego, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
22AQI
31AQI
44AQI
48AQI
34AQI
28AQI
35AQI
40AQI
39AQI
45AQI
37AQI
45AQI
64AQI
61AQI
62AQI
69AQI
70AQI
65AQI
61AQI
51AQI
41AQI
33AQI
26AQI
39AQI
55AQI
64AQI
53AQI
47AQI
43AQI
39AQI
27AQI
22AQI
23AQI
43AQI
57AQI
52AQI
42AQI
43AQI
37AQI
37AQI
55AQI
50AQI
54AQI
58AQI
58AQI
63AQI
60AQI
41AQI
47AQI
60AQI
63AQI
53AQI
40AQI
57AQI
70AQI
67AQI
67AQI
69AQI
61AQI
59AQI
55AQI
51AQI
50AQI
47AQI
56AQI
77AQI
60AQI
52AQI
35AQI
31AQI
36AQI
36AQI
39AQI
43AQI
54AQI
53AQI
49AQI
58AQI
62AQI
61AQI
60AQI
64AQI
64AQI
66AQI
62AQI
64AQI
63AQI
61AQI
63AQI
70AQI
58AQI
54AQI
56AQI
52AQI
51AQI
46AQI
45AQI
46AQI
48AQI
49AQI
63AQI
58AQI
59AQI
59AQI
52AQI
50AQI
59AQI
57AQI
52AQI
47AQI
41AQI
36AQI
30AQI
30AQI
41AQI
49AQI
42AQI
30AQI
27AQI
39AQI
29AQI
27AQI
29AQI
30AQI
43AQI
55AQI
56AQI
55AQI
49AQI
53AQI
66AQI
69AQI
68AQI
68AQI
62AQI
56AQI
58AQI
57AQI
61AQI
60AQI
60AQI
57AQI
47AQI
48AQI
52AQI
51AQI
55AQI
65AQI
59AQI
61AQI
56AQI
54AQI
54AQI
54AQI
58AQI
55AQI
52AQI
56AQI
55AQI
55AQI
57AQI
54AQI
53AQI
51AQI
50AQI
57AQI
36AQI
32AQI
33AQI
40AQI
51AQI
57AQI
59AQI
64AQI
57AQI
53AQI
56AQI
56AQI
55AQI
54AQI
54AQI
55AQI
55AQI
38AQI
30AQI
40AQI
43AQI
41AQI
54AQI
44AQI
39AQI
53AQI
68AQI
51AQI
62AQI
57AQI
56AQI
52AQI
55AQI
70AQI
73AQI
69AQI
27AQI
34AQI
46AQI
55AQI
54AQI
44AQI
57AQI
50AQI
55AQI
No. of days
202551AQI
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
March34AQI
Most & Least Polluted Years Over the Last 1 Years
Otay Mesa's annual 2025 AQI (51) shows an average percentage change of NaN% (improved AQI) compared to previous years: .