Dunedin, Otago, New Zealand 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
Dunedin, Otago, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (10th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Mar - 10th Mar 2026
Dunedin, Otago, New Zealand
7 AM9th Mar 2026
8 PM
6 AM10th Mar 2026
40AQI
8AQI
33AQI
8AQI
In the last 24 hours,
Dunedin's AQI reached its highest point of 40 at 2 PM during the Day, while the lowest point, 8, was recorded at 3 AM during the Night between 9th Mar and 10th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Dunedin, Otago, New Zealand
11°C7/15°C
14°C10/20°C
14°C12/17°C
15°C12/20°C
13°C11/17°C
12°C9/16°C
11°C8/13°C
11°C10/12°C
11°C11/11°C
13°C11/17°C
14°C12/19°C
12°C10/14°C
12°C9/16°C
13°C9/17°C
13°C7/19°C
13°C11/17°C
14°C9/20°C
11°C10/12°C
10°C6/13°C
11°C6/15°C
11°C9/13°C
8°C6/11°C
9°C5/14°C
11°C7/17°C
15°C10/19°C
17°C12/24°C
16°C13/21°C
13°C9/18°C
9°C7/12°C
9°C5/12°C
33AQI
16AQI
24AQI
18AQI
2026 Days Vs Air Quality
Dunedin, Otago, New Zealand
100%
69
Total number of days with different AQI categories in last 70 days in 2026 (295 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 70 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
Dunedin, Otago, New Zealand
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
11AQI (US)
11AQI (US)
15AQI (US)
20AQI (US)
16AQI (US)
16AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
23AQI (US)
18AQI (US)
22AQI (US)
16AQI (US)
15AQI (US)
9AQI (US)
12AQI (US)
11AQI (US)
18AQI (US)
14AQI (US)
13AQI (US)
19AQI (US)
12AQI (US)
18AQI (US)
19AQI (US)
15AQI (US)
18AQI (US)
25AQI (US)
34AQI (US)
29AQI (US)
29AQI (US)
21AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
19AQI (US)
16AQI (US)
26AQI (US)
21AQI (US)
23AQI (US)
18AQI (US)
23AQI (US)
23AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
13AQI (US)
18AQI (US)
13AQI (US)
14AQI (US)
22AQI (US)
22AQI (US)
35AQI (US)
30AQI (US)
43AQI (US)
26AQI (US)
14AQI (US)
29AQI (US)
21AQI (US)
32AQI (US)
20AQI (US)
24AQI (US)
24AQI (US)
21AQI (US)
25AQI (US)
23AQI (US)
18AQI (US)
22AQI (US)
18AQI (US)
21AQI (US)
23AQI (US)
No. of days
202620AQI (US)
Highest AQI (US) recorded in
March23AQI (US)
Lowest AQI (US) recorded in
January18AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
June64AQI (US)
Lowest AQI (US) recorded in
December20AQI (US)
202427AQI (US)
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
February12AQI (US)
202317AQI (US)
Highest AQI (US) recorded in
January26AQI (US)
Lowest AQI (US) recorded in
December10AQI (US)
202227AQI (US)
Highest AQI (US) recorded in
November62AQI (US)
Lowest AQI (US) recorded in
January16AQI (US)
202116AQI (US)
Highest AQI (US) recorded in
November19AQI (US)
Lowest AQI (US) recorded in
April14AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Dunedin's annual 2026 AQI (US) (20) shows an average percentage change of -10.7% (improved AQI (US)) compared to previous years: 2021 (16), 2022 (27), 2023 (17), 2024 (27), 2025 (35).