Blenheim, Marlborough, New Zealand Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Blenheim, Marlborough, New Zealand
AQI Trends: Highest and Lowest
Same Day Analysis (30th July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 41 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Blenheim, Marlborough, New Zealand
77%
163
23%
48
Total number of days with different AQI categories in last 212 days in 2025 (153 days remaining)
Under WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 212 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Blenheim, Marlborough, New Zealand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
24AQI
24AQI
23AQI
32AQI
25AQI
27AQI
23AQI
25AQI
23AQI
22AQI
22AQI
25AQI
25AQI
20AQI
19AQI
20AQI
18AQI
20AQI
19AQI
21AQI
21AQI
29AQI
24AQI
26AQI
22AQI
24AQI
25AQI
25AQI
29AQI
27AQI
26AQI
24AQI
24AQI
28AQI
28AQI
27AQI
30AQI
28AQI
31AQI
29AQI
33AQI
24AQI
28AQI
35AQI
31AQI
32AQI
25AQI
26AQI
26AQI
24AQI
22AQI
21AQI
26AQI
21AQI
22AQI
21AQI
22AQI
23AQI
23AQI
24AQI
24AQI
20AQI
21AQI
20AQI
22AQI
22AQI
21AQI
21AQI
22AQI
25AQI
21AQI
25AQI
23AQI
23AQI
19AQI
19AQI
19AQI
22AQI
19AQI
24AQI
24AQI
25AQI
21AQI
22AQI
22AQI
23AQI
22AQI
21AQI
25AQI
29AQI
29AQI
26AQI
24AQI
29AQI
22AQI
21AQI
21AQI
22AQI
23AQI
23AQI
22AQI
25AQI
21AQI
23AQI
24AQI
25AQI
26AQI
24AQI
21AQI
17AQI
23AQI
27AQI
34AQI
34AQI
32AQI
32AQI
31AQI
30AQI
28AQI
29AQI
31AQI
38AQI
36AQI
39AQI
32AQI
34AQI
32AQI
32AQI
36AQI
42AQI
38AQI
40AQI
44AQI
38AQI
39AQI
36AQI
33AQI
42AQI
38AQI
48AQI
48AQI
53AQI
57AQI
48AQI
52AQI
56AQI
52AQI
48AQI
47AQI
49AQI
50AQI
42AQI
52AQI
41AQI
41AQI
42AQI
38AQI
53AQI
52AQI
60AQI
61AQI
61AQI
59AQI
61AQI
75AQI
81AQI
79AQI
79AQI
73AQI
69AQI
69AQI
79AQI
78AQI
79AQI
74AQI
73AQI
69AQI
72AQI
69AQI
68AQI
70AQI
66AQI
64AQI
62AQI
63AQI
62AQI
65AQI
64AQI
67AQI
64AQI
61AQI
61AQI
62AQI
57AQI
51AQI
52AQI
50AQI
51AQI
48AQI
44AQI
39AQI
42AQI
40AQI
44AQI
51AQI
53AQI
44AQI
42AQI
41AQI
41AQI
24AQI
26AQI
22AQI
26AQI
42AQI
63AQI
54AQI
No. of days
202537AQI
Highest AQI recorded in
June63AQI
Lowest AQI recorded in
March22AQI
202435AQI
Highest AQI recorded in
July66AQI
Lowest AQI recorded in
October21AQI
202328AQI
Highest AQI recorded in
July62AQI
Lowest AQI recorded in
March8AQI
202236AQI
Highest AQI recorded in
June68AQI
Lowest AQI recorded in
January20AQI
202143AQI
Highest AQI recorded in
June71AQI
Lowest AQI recorded in
December13AQI
Most & Least Polluted Years Over the Last 5 Years
Blenheim's annual 2025 AQI (37) shows an average percentage change of 5.7% (worsened AQI) compared to previous years: 2021 (43), 2022 (36), 2023 (28), 2024 (35).
