Santa Ynez, 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
Santa Ynez, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (28th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Oct - 29th Oct 2025
Santa Ynez, California, United States
7 AM28th Oct 2025
6 PM
6 AM29th Oct 2025
45AQI
18AQI
44AQI
20AQI
In the last 24 hours,
Santa Ynez's AQI reached its highest point of 45 at 2 PM during the Day, while the lowest point, undefined, was recorded at 6 AM during the Night between 28th Oct and 29th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Santa Ynez, California, United States
19°C14/25°C
19°C12/28°C
20°C15/29°C
19°C12/29°C
18°C13/26°C
17°C9/28°C
18°C11/29°C
18°C10/27°C
18°C11/28°C
17°C11/26°C
17°C8/28°C
17°C11/28°C
18°C9/29°C
17°C7/31°C
14°C8/21°C
13°C10/16°C
13°C7/20°C
15°C7/26°C
18°C10/29°C
19°C10/31°C
17°C7/31°C
18°C7/30°C
15°C10/25°C
17°C13/24°C
18°C11/31°C
17°C11/28°C
15°C12/22°C
17°C13/26°C
18°C12/28°C
20°C9/34°C
--°C/°C
43AQI
37AQI
45AQI
41AQI
2025 Days Vs Air Quality
Santa Ynez, California, United States
91%
198
9%
19
Total number of days with different AQI categories in last 302 days in 2025 (63 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 302 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
Santa Ynez, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
20AQI
26AQI
22AQI
22AQI
17AQI
19AQI
21AQI
22AQI
25AQI
21AQI
21AQI
21AQI
22AQI
28AQI
34AQI
33AQI
39AQI
42AQI
31AQI
34AQI
34AQI
26AQI
26AQI
27AQI
31AQI
35AQI
29AQI
30AQI
34AQI
28AQI
18AQI
15AQI
19AQI
29AQI
29AQI
25AQI
26AQI
29AQI
36AQI
41AQI
40AQI
35AQI
37AQI
41AQI
40AQI
37AQI
27AQI
21AQI
29AQI
41AQI
40AQI
31AQI
29AQI
45AQI
45AQI
44AQI
48AQI
42AQI
38AQI
33AQI
28AQI
26AQI
32AQI
34AQI
35AQI
42AQI
34AQI
33AQI
36AQI
34AQI
31AQI
28AQI
28AQI
34AQI
35AQI
34AQI
41AQI
51AQI
47AQI
47AQI
50AQI
54AQI
50AQI
50AQI
50AQI
51AQI
51AQI
52AQI
47AQI
34AQI
33AQI
36AQI
33AQI
35AQI
39AQI
29AQI
32AQI
34AQI
34AQI
37AQI
56AQI
46AQI
41AQI
33AQI
30AQI
34AQI
41AQI
43AQI
36AQI
28AQI
25AQI
27AQI
24AQI
25AQI
30AQI
30AQI
27AQI
21AQI
20AQI
19AQI
19AQI
18AQI
20AQI
22AQI
27AQI
37AQI
34AQI
31AQI
32AQI
40AQI
52AQI
55AQI
52AQI
54AQI
48AQI
49AQI
41AQI
39AQI
42AQI
41AQI
36AQI
32AQI
26AQI
22AQI
30AQI
34AQI
36AQI
46AQI
55AQI
48AQI
39AQI
36AQI
42AQI
38AQI
37AQI
32AQI
34AQI
44AQI
40AQI
37AQI
34AQI
33AQI
47AQI
33AQI
27AQI
25AQI
21AQI
21AQI
22AQI
27AQI
31AQI
34AQI
41AQI
43AQI
30AQI
32AQI
35AQI
32AQI
30AQI
27AQI
31AQI
32AQI
28AQI
28AQI
27AQI
26AQI
25AQI
38AQI
35AQI
30AQI
46AQI
56AQI
56AQI
54AQI
53AQI
53AQI
49AQI
48AQI
53AQI
58AQI
58AQI
43AQI
41AQI
41AQI
48AQI
49AQI
33AQI
26AQI
32AQI
32AQI
35AQI
38AQI
26AQI
26AQI
37AQI
37AQI
22AQI
27AQI
35AQI
40AQI
31AQI
40AQI
31AQI
43AQI
No. of days
202535AQI
Highest AQI recorded in
October43AQI
Lowest AQI recorded in
March22AQI
Most & Least Polluted Years Over the Last 1 Years
Santa Ynez's annual 2025 AQI (35) shows an average percentage change of NaN% (improved AQI) compared to previous years: .