Whangarei, Northland Region, New Zealand Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Whangarei, Northland Region, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Whangarei, Northland Region, New Zealand
6 AM29th Sep 2025
6 PM
5 AM30th Sep 2025
AQI
AQI
28AQI
13AQI
In the last 24 hours,
Whangarei's AQI reached its highest point of 28 at 8 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Whangarei, Northland Region, New Zealand
12°C10/16°C
12°C9/16°C
12°C9/16°C
11°C7/15°C
11°C7/17°C
12°C7/18°C
11°C9/13°C
11°C8/15°C
10°C6/14°C
10°C8/15°C
14°C7/20°C
12°C11/13°C
13°C11/18°C
13°C11/16°C
13°C11/16°C
12°C8/16°C
13°C8/18°C
14°C10/19°C
14°C11/19°C
12°C7/15°C
11°C6/16°C
14°C11/17°C
15°C14/17°C
15°C14/16°C
15°C13/18°C
14°C9/17°C
13°C8/18°C
14°C11/20°C
15°C10/22°C
--°C/°C
--°C/°C
26AQI
22AQI
25AQI
23AQI
2025 Days Vs Air Quality
Whangarei, Northland Region, New Zealand
100%
123
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 272 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
Whangarei, Northland Region, New Zealand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
28AQI
29AQI
28AQI
31AQI
28AQI
24AQI
25AQI
22AQI
22AQI
28AQI
31AQI
25AQI
30AQI
28AQI
28AQI
32AQI
30AQI
34AQI
39AQI
44AQI
44AQI
42AQI
39AQI
42AQI
46AQI
50AQI
48AQI
47AQI
43AQI
47AQI
47AQI
44AQI
44AQI
38AQI
35AQI
36AQI
30AQI
30AQI
28AQI
28AQI
30AQI
28AQI
26AQI
30AQI
31AQI
32AQI
31AQI
32AQI
34AQI
35AQI
37AQI
38AQI
38AQI
38AQI
39AQI
38AQI
37AQI
36AQI
31AQI
35AQI
34AQI
31AQI
34AQI
21AQI
26AQI
29AQI
29AQI
27AQI
33AQI
31AQI
27AQI
27AQI
27AQI
27AQI
26AQI
28AQI
25AQI
23AQI
25AQI
25AQI
23AQI
22AQI
23AQI
21AQI
22AQI
21AQI
26AQI
28AQI
27AQI
25AQI
21AQI
20AQI
24AQI
22AQI
23AQI
22AQI
23AQI
29AQI
27AQI
24AQI
25AQI
24AQI
27AQI
27AQI
27AQI
22AQI
23AQI
23AQI
24AQI
25AQI
24AQI
30AQI
27AQI
25AQI
24AQI
24AQI
22AQI
20AQI
19AQI
21AQI
20AQI
36AQI
28AQI
36AQI
34AQI
25AQI
25AQI
No. of days
202530AQI
Highest AQI recorded in
June36AQI
Lowest AQI recorded in
September25AQI
Most & Least Polluted Years Over the Last 1 Years
Whangarei's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .