Temecula, California, United States 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
Temecula, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 31 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Temecula, California, United States
6 AM29th Sep 2025
6 PM
5 AM30th Sep 2025
43AQI
12AQI
46AQI
29AQI
In the last 24 hours,
Temecula's AQI reached its highest point of 46 at 12 AM during the Night, while the lowest point, 12, was recorded at 6 AM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Temecula, California, United States
27°C19/39°C
28°C19/39°C
27°C20/39°C
27°C21/38°C
26°C19/37°C
24°C18/35°C
24°C17/36°C
25°C18/37°C
24°C16/34°C
20°C13/30°C
18°C14/23°C
19°C14/28°C
18°C12/27°C
20°C14/29°C
21°C14/32°C
24°C16/35°C
27°C19/39°C
23°C19/31°C
22°C18/28°C
22°C17/30°C
22°C16/33°C
23°C17/34°C
25°C19/34°C
26°C19/38°C
25°C19/34°C
22°C17/31°C
19°C17/25°C
20°C17/29°C
22°C18/30°C
21°C14/30°C
--°C/°C
34AQI
32AQI
59AQI
32AQI
2025 Days Vs Air Quality
Temecula, California, United States
82%
155
17%
32
0.5%
1
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 273 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Temecula, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI
27AQI
27AQI
36AQI
37AQI
26AQI
26AQI
37AQI
24AQI
24AQI
23AQI
23AQI
26AQI
31AQI
33AQI
35AQI
36AQI
36AQI
47AQI
46AQI
42AQI
33AQI
28AQI
29AQI
31AQI
35AQI
42AQI
44AQI
41AQI
38AQI
38AQI
21AQI
18AQI
20AQI
35AQI
34AQI
39AQI
36AQI
37AQI
25AQI
22AQI
32AQI
32AQI
42AQI
45AQI
42AQI
38AQI
48AQI
33AQI
36AQI
40AQI
41AQI
40AQI
39AQI
41AQI
45AQI
42AQI
46AQI
52AQI
49AQI
44AQI
40AQI
41AQI
43AQI
39AQI
37AQI
51AQI
42AQI
32AQI
29AQI
25AQI
23AQI
29AQI
32AQI
34AQI
36AQI
40AQI
43AQI
45AQI
48AQI
47AQI
47AQI
52AQI
55AQI
56AQI
52AQI
50AQI
52AQI
52AQI
51AQI
52AQI
49AQI
51AQI
51AQI
46AQI
46AQI
46AQI
96AQI
55AQI
42AQI
42AQI
49AQI
47AQI
46AQI
53AQI
46AQI
43AQI
52AQI
48AQI
45AQI
44AQI
35AQI
47AQI
32AQI
27AQI
34AQI
37AQI
41AQI
33AQI
26AQI
31AQI
25AQI
23AQI
26AQI
28AQI
34AQI
38AQI
45AQI
42AQI
36AQI
41AQI
60AQI
63AQI
61AQI
57AQI
50AQI
58AQI
70AQI
56AQI
58AQI
54AQI
59AQI
49AQI
33AQI
32AQI
32AQI
33AQI
37AQI
55AQI
117AQI
50AQI
53AQI
65AQI
45AQI
40AQI
42AQI
33AQI
35AQI
43AQI
49AQI
58AQI
71AQI
63AQI
41AQI
37AQI
34AQI
25AQI
25AQI
24AQI
25AQI
24AQI
34AQI
39AQI
38AQI
39AQI
45AQI
36AQI
25AQI
21AQI
22AQI
26AQI
30AQI
32AQI
33AQI
25AQI
22AQI
25AQI
31AQI
30AQI
33AQI
40AQI
44AQI
41AQI
50AQI
34AQI
No. of days
202540AQI
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
March30AQI
Most & Least Polluted Years Over the Last 1 Years
Temecula's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .