Thames, Waikato, 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
Thames, Waikato, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 30 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Thames, Waikato, New Zealand
6 AM20th Sep 2025
6 PM
5 AM21st Sep 2025
31AQI
18AQI
28AQI
21AQI
In the last 24 hours,
Thames's AQI reached its highest point of 31 at 7 AM during the Day, while the lowest point, 18, was recorded at 2 PM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Thames, Waikato, New Zealand
8°C5/12°C
7°C4/11°C
9°C5/13°C
10°C7/14°C
11°C7/15°C
11°C9/15°C
12°C6/16°C
12°C9/14°C
12°C9/16°C
11°C9/12°C
12°C10/15°C
12°C9/15°C
10°C6/15°C
11°C6/16°C
11°C7/15°C
11°C9/12°C
10°C5/14°C
8°C2/14°C
8°C3/12°C
13°C9/17°C
11°C8/14°C
11°C9/13°C
12°C9/14°C
12°C10/15°C
11°C7/16°C
13°C10/18°C
14°C12/17°C
13°C10/15°C
11°C7/15°C
9°C5/14°C
--°C/°C
23AQI
19AQI
25AQI
22AQI
2025 Days Vs Air Quality
Thames, Waikato, New Zealand
100%
262
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 264 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
Thames, Waikato, New Zealand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI
25AQI
28AQI
28AQI
26AQI
26AQI
24AQI
23AQI
23AQI
23AQI
21AQI
21AQI
22AQI
21AQI
22AQI
19AQI
22AQI
21AQI
21AQI
19AQI
20AQI
20AQI
22AQI
22AQI
24AQI
23AQI
26AQI
25AQI
27AQI
25AQI
25AQI
24AQI
23AQI
26AQI
26AQI
27AQI
26AQI
26AQI
26AQI
26AQI
27AQI
25AQI
22AQI
25AQI
22AQI
23AQI
21AQI
21AQI
23AQI
22AQI
25AQI
21AQI
22AQI
21AQI
22AQI
21AQI
21AQI
21AQI
21AQI
22AQI
22AQI
22AQI
21AQI
27AQI
25AQI
25AQI
24AQI
23AQI
21AQI
21AQI
22AQI
21AQI
23AQI
22AQI
22AQI
19AQI
22AQI
22AQI
20AQI
20AQI
20AQI
19AQI
21AQI
22AQI
22AQI
22AQI
23AQI
21AQI
22AQI
24AQI
24AQI
25AQI
23AQI
21AQI
24AQI
21AQI
23AQI
22AQI
22AQI
28AQI
24AQI
24AQI
23AQI
24AQI
23AQI
21AQI
23AQI
23AQI
25AQI
19AQI
16AQI
19AQI
19AQI
23AQI
22AQI
24AQI
23AQI
23AQI
22AQI
22AQI
21AQI
20AQI
20AQI
20AQI
22AQI
25AQI
27AQI
27AQI
24AQI
25AQI
25AQI
26AQI
25AQI
25AQI
25AQI
23AQI
26AQI
21AQI
22AQI
21AQI
24AQI
27AQI
26AQI
28AQI
27AQI
22AQI
27AQI
24AQI
26AQI
26AQI
25AQI
27AQI
30AQI
27AQI
26AQI
24AQI
22AQI
22AQI
29AQI
28AQI
29AQI
31AQI
29AQI
29AQI
30AQI
34AQI
33AQI
38AQI
39AQI
37AQI
37AQI
39AQI
44AQI
44AQI
48AQI
49AQI
45AQI
42AQI
44AQI
45AQI
44AQI
45AQI
41AQI
35AQI
39AQI
37AQI
34AQI
33AQI
33AQI
33AQI
30AQI
29AQI
30AQI
31AQI
31AQI
31AQI
34AQI
34AQI
35AQI
39AQI
38AQI
38AQI
35AQI
35AQI
36AQI
37AQI
36AQI
33AQI
34AQI
33AQI
31AQI
33AQI
21AQI
26AQI
27AQI
28AQI
27AQI
28AQI
30AQI
28AQI
27AQI
28AQI
25AQI
23AQI
25AQI
30AQI
23AQI
27AQI
22AQI
20AQI
21AQI
20AQI
18AQI
19AQI
22AQI
25AQI
29AQI
25AQI
24AQI
20AQI
18AQI
21AQI
19AQI
21AQI
21AQI
20AQI
23AQI
27AQI
22AQI
23AQI
24AQI
25AQI
27AQI
20AQI
20AQI
22AQI
22AQI
23AQI
24AQI
23AQI
35AQI
30AQI
23AQI
23AQI
22AQI
23AQI
24AQI
35AQI
35AQI
24AQI
24AQI
No. of days
202526AQI
Highest AQI recorded in
June35AQI
Lowest AQI recorded in
March22AQI
202420AQI
Highest AQI recorded in
June55AQI
Lowest AQI recorded in
April8AQI
202310AQI
Highest AQI recorded in
May12AQI
Lowest AQI recorded in
March8AQI
20229AQI
Highest AQI recorded in
June11AQI
Lowest AQI recorded in
March7AQI
Most & Least Polluted Years Over the Last 4 Years
Thames's annual 2025 AQI (26) shows an average percentage change of 126.4% (worsened AQI) compared to previous years: 2022 (9), 2023 (10), 2024 (20).