Henderson, Waitakere, Auckland, New Zealand 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
Henderson, Waitakere, Auckland, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (8th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 56 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 8th Oct - 9th Oct 2025
Henderson, Waitakere, Auckland, New Zealand
6 AM8th Oct 2025
6 PM
5 AM9th Oct 2025
AQI
AQI
72AQI
23AQI
In the last 24 hours,
Henderson's AQI reached its highest point of 72 at 7 AM during the Night, while the lowest point, 23, was recorded at 2 PM during the Night between 8th Oct and 9th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Henderson, Waitakere, Auckland, New Zealand
11°C7/13°C
14°C12/17°C
12°C9/14°C
12°C10/14°C
12°C11/14°C
13°C12/14°C
13°C12/15°C
14°C12/16°C
14°C13/16°C
14°C12/16°C
12°C9/15°C
11°C7/15°C
14°C11/17°C
14°C13/16°C
15°C14/17°C
15°C13/17°C
13°C12/16°C
13°C10/16°C
14°C11/17°C
15°C12/18°C
15°C12/18°C
12°C10/15°C
14°C10/17°C
15°C12/18°C
16°C15/17°C
14°C11/16°C
12°C10/15°C
14°C12/16°C
14°C12/15°C
--°C/°C
--°C/°C
28AQI
24AQI
31AQI
27AQI
2025 Days Vs Air Quality
Henderson, Waitakere, Auckland, New Zealand
99%
279
0.7%
2
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 281 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
Henderson, Waitakere, Auckland, New Zealand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
25AQI
26AQI
24AQI
25AQI
24AQI
24AQI
23AQI
24AQI
24AQI
22AQI
22AQI
22AQI
23AQI
22AQI
20AQI
21AQI
21AQI
21AQI
20AQI
22AQI
21AQI
24AQI
26AQI
27AQI
27AQI
29AQI
29AQI
30AQI
27AQI
28AQI
26AQI
25AQI
25AQI
25AQI
25AQI
25AQI
25AQI
25AQI
26AQI
27AQI
26AQI
25AQI
26AQI
23AQI
23AQI
23AQI
23AQI
23AQI
23AQI
23AQI
22AQI
22AQI
22AQI
23AQI
22AQI
22AQI
22AQI
22AQI
23AQI
24AQI
22AQI
22AQI
21AQI
21AQI
22AQI
23AQI
22AQI
22AQI
21AQI
22AQI
21AQI
23AQI
23AQI
22AQI
21AQI
24AQI
21AQI
22AQI
21AQI
21AQI
21AQI
21AQI
21AQI
22AQI
22AQI
22AQI
22AQI
21AQI
23AQI
23AQI
24AQI
23AQI
22AQI
24AQI
22AQI
23AQI
22AQI
22AQI
24AQI
23AQI
22AQI
21AQI
24AQI
24AQI
24AQI
23AQI
28AQI
28AQI
24AQI
25AQI
22AQI
24AQI
24AQI
24AQI
24AQI
23AQI
23AQI
23AQI
23AQI
22AQI
22AQI
21AQI
20AQI
20AQI
21AQI
21AQI
23AQI
22AQI
23AQI
23AQI
23AQI
22AQI
23AQI
24AQI
24AQI
24AQI
22AQI
23AQI
21AQI
22AQI
22AQI
22AQI
23AQI
22AQI
23AQI
23AQI
24AQI
25AQI
25AQI
24AQI
24AQI
26AQI
25AQI
25AQI
23AQI
23AQI
21AQI
21AQI
24AQI
26AQI
28AQI
27AQI
26AQI
25AQI
29AQI
32AQI
32AQI
33AQI
32AQI
34AQI
35AQI
40AQI
38AQI
41AQI
41AQI
39AQI
39AQI
39AQI
37AQI
36AQI
37AQI
36AQI
33AQI
34AQI
32AQI
30AQI
30AQI
29AQI
29AQI
26AQI
27AQI
28AQI
30AQI
29AQI
29AQI
31AQI
34AQI
33AQI
36AQI
36AQI
34AQI
31AQI
34AQI
33AQI
31AQI
32AQI
30AQI
34AQI
33AQI
29AQI
31AQI
22AQI
23AQI
28AQI
26AQI
27AQI
26AQI
28AQI
27AQI
26AQI
27AQI
24AQI
23AQI
25AQI
23AQI
21AQI
19AQI
20AQI
19AQI
21AQI
18AQI
19AQI
19AQI
19AQI
25AQI
22AQI
24AQI
23AQI
19AQI
17AQI
22AQI
19AQI
20AQI
21AQI
20AQI
23AQI
27AQI
21AQI
24AQI
23AQI
23AQI
26AQI
21AQI
20AQI
20AQI
22AQI
21AQI
24AQI
22AQI
24AQI
24AQI
22AQI
22AQI
23AQI
23AQI
22AQI
27AQI
36AQI
36AQI
52AQI
47AQI
27AQI
28AQI
41AQI
35AQI
31AQI
32AQI
35AQI
28AQI
56AQI
24AQI
24AQI
22AQI
24AQI
23AQI
31AQI
32AQI
23AQI
25AQI
36AQI
No. of days
202525AQI
Highest AQI recorded in
October36AQI
Lowest AQI recorded in
March22AQI
202420AQI
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
January10AQI
202311AQI
Highest AQI recorded in
May14AQI
Lowest AQI recorded in
April6AQI
202210AQI
Highest AQI recorded in
June11AQI
Lowest AQI recorded in
August6AQI
202111AQI
Highest AQI recorded in
July12AQI
Lowest AQI recorded in
April9AQI
Most & Least Polluted Years Over the Last 5 Years
Henderson's annual 2025 AQI (25) shows an average percentage change of 113.05% (worsened AQI) compared to previous years: 2021 (11), 2022 (10), 2023 (11), 2024 (20).