Birch Lane, Lower Hutt, Wellington, 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
Birch Lane, Lower Hutt, Wellington, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (5th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Birch Lane, Lower Hutt, Wellington, New Zealand
6 AM5th Oct 2025
6 PM
5 AM6th Oct 2025
57AQI
37AQI
77AQI
39AQI
In the last 24 hours,
Birch Lane's AQI reached its highest point of 77 at 1 AM during the Night, while the lowest point, 37, was recorded at 10 AM during the Day between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Birch Lane, Lower Hutt, Wellington, New Zealand
8°C4/12°C
8°C5/12°C
7°C4/11°C
8°C3/12°C
11°C7/14°C
8°C4/12°C
9°C6/13°C
10°C6/14°C
8°C3/9°C
10°C4/15°C
13°C10/16°C
13°C11/14°C
12°C7/14°C
6°C2/10°C
8°C2/12°C
12°C8/14°C
13°C12/13°C
13°C11/14°C
11°C8/15°C
11°C5/14°C
10°C5/12°C
11°C7/14°C
13°C10/16°C
12°C7/15°C
10°C5/13°C
8°C4/13°C
8°C3/11°C
13°C10/17°C
12°C10/15°C
9°C6/11°C
--°C/°C
29AQI
27AQI
33AQI
28AQI
2025 Days Vs Air Quality
Birch Lane, Lower Hutt, Wellington, New Zealand
91%
252
9%
26
Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 279 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
Birch Lane, Lower Hutt, Wellington, New Zealand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
29AQI
25AQI
22AQI
28AQI
23AQI
22AQI
21AQI
22AQI
22AQI
21AQI
21AQI
23AQI
22AQI
21AQI
19AQI
21AQI
19AQI
21AQI
19AQI
20AQI
20AQI
25AQI
23AQI
24AQI
22AQI
27AQI
25AQI
26AQI
25AQI
25AQI
25AQI
23AQI
23AQI
27AQI
25AQI
25AQI
29AQI
26AQI
28AQI
26AQI
33AQI
23AQI
29AQI
28AQI
29AQI
26AQI
23AQI
26AQI
23AQI
24AQI
22AQI
22AQI
22AQI
22AQI
22AQI
21AQI
21AQI
23AQI
23AQI
22AQI
21AQI
21AQI
20AQI
20AQI
23AQI
23AQI
21AQI
21AQI
22AQI
22AQI
22AQI
24AQI
22AQI
22AQI
20AQI
20AQI
20AQI
21AQI
20AQI
22AQI
21AQI
22AQI
21AQI
22AQI
22AQI
22AQI
22AQI
21AQI
24AQI
26AQI
27AQI
23AQI
24AQI
25AQI
22AQI
23AQI
22AQI
22AQI
23AQI
25AQI
23AQI
25AQI
24AQI
24AQI
23AQI
25AQI
24AQI
22AQI
19AQI
17AQI
21AQI
24AQI
32AQI
32AQI
32AQI
33AQI
32AQI
30AQI
29AQI
28AQI
26AQI
33AQI
33AQI
36AQI
30AQI
34AQI
31AQI
27AQI
31AQI
39AQI
37AQI
37AQI
38AQI
34AQI
36AQI
34AQI
30AQI
39AQI
32AQI
38AQI
40AQI
48AQI
47AQI
42AQI
40AQI
44AQI
40AQI
38AQI
37AQI
31AQI
39AQI
33AQI
36AQI
28AQI
33AQI
28AQI
31AQI
45AQI
40AQI
49AQI
46AQI
49AQI
47AQI
55AQI
70AQI
65AQI
67AQI
68AQI
61AQI
59AQI
57AQI
61AQI
61AQI
69AQI
61AQI
58AQI
59AQI
60AQI
57AQI
57AQI
62AQI
59AQI
59AQI
54AQI
51AQI
53AQI
56AQI
58AQI
55AQI
50AQI
50AQI
49AQI
50AQI
49AQI
49AQI
47AQI
47AQI
47AQI
45AQI
44AQI
42AQI
43AQI
45AQI
44AQI
46AQI
46AQI
40AQI
43AQI
37AQI
39AQI
40AQI
26AQI
33AQI
33AQI
31AQI
30AQI
37AQI
32AQI
32AQI
29AQI
33AQI
31AQI
29AQI
30AQI
29AQI
26AQI
27AQI
31AQI
27AQI
25AQI
27AQI
25AQI
25AQI
24AQI
30AQI
28AQI
28AQI
26AQI
22AQI
20AQI
24AQI
22AQI
25AQI
24AQI
23AQI
21AQI
25AQI
33AQI
29AQI
26AQI
26AQI
28AQI
29AQI
24AQI
24AQI
24AQI
23AQI
26AQI
25AQI
23AQI
25AQI
23AQI
23AQI
20AQI
21AQI
21AQI
21AQI
20AQI
27AQI
25AQI
35AQI
35AQI
32AQI
50AQI
48AQI
49AQI
49AQI
23AQI
25AQI
22AQI
25AQI
36AQI
52AQI
48AQI
28AQI
25AQI
46AQI
No. of days
202532AQI
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
March22AQI
202433AQI
Highest AQI recorded in
June57AQI
Lowest AQI recorded in
April13AQI
202323AQI
Highest AQI recorded in
May25AQI
Lowest AQI recorded in
February22AQI
202226AQI
Highest AQI recorded in
July36AQI
Lowest AQI recorded in
August14AQI
202128AQI
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
October21AQI
Most & Least Polluted Years Over the Last 5 Years
Birch Lane's annual 2025 AQI (32) shows an average percentage change of 16.4% (worsened AQI) compared to previous years: 2021 (28), 2022 (26), 2023 (23), 2024 (33).