Central San Jose, San Jose, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Central San Jose, San Jose, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Central San Jose, San Jose, California, United States
6 AM11th Aug 2025
8 PM
5 AM12th Aug 2025
58AQI
26AQI
45AQI
31AQI
In the last 24 hours,
Central San Jose's AQI reached its highest point of 58 at 2 PM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Central San Jose, San Jose, California, United States
23°C16/34°C
24°C16/34°C
21°C15/29°C
20°C14/27°C
21°C15/31°C
21°C15/30°C
20°C14/29°C
20°C14/28°C
17°C14/22°C
17°C14/22°C
19°C15/26°C
19°C15/26°C
18°C14/25°C
19°C14/26°C
18°C14/26°C
21°C14/30°C
22°C16/31°C
20°C15/29°C
21°C16/31°C
21°C15/30°C
20°C14/29°C
19°C14/27°C
19°C13/27°C
20°C13/28°C
22°C15/32°C
23°C16/33°C
25°C17/36°C
26°C19/36°C
27°C19/37°C
24°C17/34°C
--°C/°C
39AQI
31AQI
34AQI
31AQI
2025 Days Vs Air Quality
Central San Jose, San Jose, California, United States
88%
122
12%
16
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 224 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
Central San Jose, San Jose, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI
30AQI
35AQI
30AQI
22AQI
25AQI
25AQI
34AQI
27AQI
30AQI
27AQI
29AQI
23AQI
21AQI
34AQI
34AQI
25AQI
40AQI
48AQI
45AQI
39AQI
45AQI
33AQI
39AQI
43AQI
49AQI
46AQI
48AQI
52AQI
46AQI
34AQI
32AQI
35AQI
46AQI
45AQI
49AQI
43AQI
42AQI
39AQI
41AQI
42AQI
45AQI
51AQI
48AQI
44AQI
46AQI
37AQI
29AQI
28AQI
38AQI
46AQI
52AQI
44AQI
41AQI
47AQI
37AQI
51AQI
46AQI
35AQI
40AQI
30AQI
21AQI
36AQI
39AQI
28AQI
41AQI
53AQI
55AQI
55AQI
45AQI
57AQI
50AQI
44AQI
41AQI
38AQI
28AQI
32AQI
52AQI
54AQI
54AQI
52AQI
52AQI
53AQI
46AQI
49AQI
54AQI
50AQI
46AQI
45AQI
47AQI
35AQI
33AQI
34AQI
44AQI
45AQI
44AQI
35AQI
37AQI
34AQI
46AQI
42AQI
45AQI
44AQI
35AQI
29AQI
26AQI
38AQI
45AQI
47AQI
44AQI
37AQI
27AQI
26AQI
27AQI
27AQI
30AQI
30AQI
33AQI
20AQI
23AQI
23AQI
21AQI
24AQI
22AQI
28AQI
37AQI
36AQI
38AQI
34AQI
35AQI
36AQI
42AQI
36AQI
45AQI
37AQI
37AQI
51AQI
48AQI
32AQI
37AQI
41AQI
46AQI
33AQI
40AQI
No. of days
202539AQI
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
March32AQI
Most & Least Polluted Years Over the Last 1 Years
Central San Jose's annual 2025 AQI (39) shows an average percentage change of NaN% (improved AQI) compared to previous years: .