Alameda, 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
Alameda, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Alameda, California, United States
6 AM14th Aug 2026
8 PM
5 AM15th Aug 2026
57AQI
25AQI
54AQI
42AQI
In the last 24 hours,
Alameda's AQI reached its highest point of 57 at 7 PM during the Day, while the lowest point, 25, was recorded at 7 AM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Alameda, California, United States
16°C13/22°C
16°C13/22°C
16°C13/21°C
17°C14/25°C
22°C15/30°C
19°C16/22°C
18°C14/22°C
18°C14/25°C
18°C13/24°C
17°C14/24°C
17°C13/23°C
19°C14/29°C
18°C14/28°C
18°C14/25°C
19°C13/29°C
20°C14/31°C
21°C14/31°C
18°C13/25°C
17°C13/23°C
16°C13/21°C
17°C15/22°C
16°C13/22°C
16°C13/23°C
17°C14/25°C
16°C13/21°C
16°C14/20°C
17°C14/22°C
16°C14/20°C
17°C15/20°C
16°C14/20°C
50AQI
44AQI
50AQI
45AQI
2026 Days Vs Air Quality
Alameda, California, United States
89%
200
11%
24
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 227 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
Alameda, California, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
20AQI (US)
21AQI (US)
29AQI (US)
22AQI (US)
14AQI (US)
29AQI (US)
18AQI (US)
20AQI (US)
46AQI (US)
63AQI (US)
49AQI (US)
65AQI (US)
66AQI (US)
69AQI (US)
54AQI (US)
58AQI (US)
68AQI (US)
59AQI (US)
48AQI (US)
56AQI (US)
48AQI (US)
51AQI (US)
47AQI (US)
46AQI (US)
46AQI (US)
43AQI (US)
49AQI (US)
55AQI (US)
51AQI (US)
41AQI (US)
45AQI (US)
48AQI (US)
48AQI (US)
47AQI (US)
46AQI (US)
42AQI (US)
36AQI (US)
46AQI (US)
48AQI (US)
47AQI (US)
46AQI (US)
48AQI (US)
52AQI (US)
51AQI (US)
43AQI (US)
46AQI (US)
51AQI (US)
43AQI (US)
44AQI (US)
42AQI (US)
36AQI (US)
37AQI (US)
40AQI (US)
44AQI (US)
43AQI (US)
36AQI (US)
33AQI (US)
35AQI (US)
40AQI (US)
52AQI (US)
44AQI (US)
44AQI (US)
39AQI (US)
36AQI (US)
36AQI (US)
35AQI (US)
35AQI (US)
32AQI (US)
37AQI (US)
38AQI (US)
37AQI (US)
34AQI (US)
34AQI (US)
36AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
36AQI (US)
32AQI (US)
32AQI (US)
37AQI (US)
39AQI (US)
33AQI (US)
34AQI (US)
34AQI (US)
32AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
34AQI (US)
34AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
30AQI (US)
29AQI (US)
38AQI (US)
30AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
35AQI (US)
36AQI (US)
32AQI (US)
32AQI (US)
32AQI (US)
32AQI (US)
30AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
30AQI (US)
33AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
22AQI (US)
30AQI (US)
35AQI (US)
33AQI (US)
29AQI (US)
30AQI (US)
33AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
43AQI (US)
51AQI (US)
58AQI (US)
51AQI (US)
52AQI (US)
42AQI (US)
36AQI (US)
47AQI (US)
47AQI (US)
39AQI (US)
42AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
30AQI (US)
25AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
43AQI (US)
52AQI (US)
46AQI (US)
48AQI (US)
45AQI (US)
46AQI (US)
41AQI (US)
52AQI (US)
44AQI (US)
47AQI (US)
45AQI (US)
46AQI (US)
45AQI (US)
45AQI (US)
49AQI (US)
46AQI (US)
49AQI (US)
59AQI (US)
48AQI (US)
46AQI (US)
48AQI (US)
47AQI (US)
49AQI (US)
48AQI (US)
48AQI (US)
48AQI (US)
47AQI (US)
53AQI (US)
44AQI (US)
42AQI (US)
44AQI (US)
44AQI (US)
35AQI (US)
31AQI (US)
35AQI (US)
26AQI (US)
37AQI (US)
48AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
December51AQI (US)
Lowest AQI (US) recorded in
July25AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
December51AQI (US)
Lowest AQI (US) recorded in
March25AQI (US)
202335AQI (US)
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
March25AQI (US)
202238AQI (US)
Highest AQI (US) recorded in
August49AQI (US)
Lowest AQI (US) recorded in
July27AQI (US)
202134AQI (US)
Highest AQI (US) recorded in
September43AQI (US)
Lowest AQI (US) recorded in
February25AQI (US)
202041AQI (US)
Highest AQI (US) recorded in
September70AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Alameda's annual 2026 AQI (US) (37) shows an average percentage change of 2.9% (worsened AQI (US)) compared to previous years: 2020 (41), 2021 (34), 2022 (38), 2023 (35), 2024 (32), 2025 (37).