Hayward Highland, Hayward, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Hayward Highland, Hayward, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th March):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 35 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Mar - 5th Mar 2026
Hayward Highland, Hayward, California, United States
6 AM4th Mar 2026
5 PM
5 AM5th Mar 2026
64AQI
40AQI
48AQI
33AQI
In the last 24 hours,
Hayward Highland's AQI reached its highest point of 64 at 5 PM during the Day, while the lowest point, 33, was recorded at 12 AM during the Night between 4th Mar and 5th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Hayward Highland, Hayward, California, United States
15°C8/24°C
17°C12/27°C
16°C11/24°C
13°C10/19°C
13°C7/20°C
14°C8/22°C
12°C8/18°C
12°C10/15°C
13°C9/18°C
11°C8/15°C
10°C7/14°C
13°C10/19°C
10°C8/12°C
8°C5/10°C
6°C3/10°C
8°C6/12°C
8°C3/14°C
9°C4/18°C
12°C8/18°C
15°C9/24°C
17°C13/24°C
16°C15/19°C
16°C12/24°C
19°C14/28°C
20°C15/27°C
14°C11/17°C
14°C11/18°C
13°C10/17°C
13°C10/21°C
14°C6/23°C
67AQI
38AQI
37AQI
33AQI
2026 Days Vs Air Quality
Hayward Highland, Hayward, California, United States
80%
51
20%
13
Total number of days with different AQI categories in last 65 days in 2026 (300 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 65 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
Hayward Highland, Hayward, California, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
14AQI (US)
17AQI (US)
19AQI (US)
20AQI (US)
13AQI (US)
18AQI (US)
15AQI (US)
19AQI (US)
36AQI (US)
38AQI (US)
41AQI (US)
51AQI (US)
52AQI (US)
54AQI (US)
35AQI (US)
49AQI (US)
56AQI (US)
41AQI (US)
41AQI (US)
49AQI (US)
53AQI (US)
55AQI (US)
47AQI (US)
51AQI (US)
48AQI (US)
38AQI (US)
45AQI (US)
54AQI (US)
59AQI (US)
41AQI (US)
52AQI (US)
51AQI (US)
49AQI (US)
44AQI (US)
49AQI (US)
44AQI (US)
38AQI (US)
43AQI (US)
46AQI (US)
45AQI (US)
40AQI (US)
40AQI (US)
48AQI (US)
51AQI (US)
43AQI (US)
46AQI (US)
50AQI (US)
42AQI (US)
44AQI (US)
39AQI (US)
34AQI (US)
36AQI (US)
41AQI (US)
46AQI (US)
43AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
37AQI (US)
55AQI (US)
43AQI (US)
46AQI (US)
35AQI (US)
38AQI (US)
43AQI (US)
43AQI (US)
No. of days
202641AQI (US)
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
January38AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
March19AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Hayward Highland's annual 2026 AQI (US) (41) shows an average percentage change of 22.6% (worsened AQI (US)) compared to previous years: 2025 (33).