North Down Holywood A2, Holywood, Ards And North Down, United Kingdom Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
North Down Holywood A2, Holywood, Ards And North Down, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 27 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
North Down Holywood A2, Holywood, Ards And North Down, United Kingdom
5 AM12th Aug 2025
9 PM
4 AM13th Aug 2025
38AQI
25AQI
55AQI
29AQI
In the last 24 hours,
North Down Holywood A2's AQI reached its highest point of 55 at 2 AM during the Night, while the lowest point, 25, was recorded at 11 AM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
North Down Holywood A2, Holywood, Ards And North Down, United Kingdom
15°C12/17°C
14°C12/15°C
14°C12/17°C
15°C13/17°C
16°C15/18°C
15°C14/17°C
15°C14/17°C
15°C15/17°C
15°C13/17°C
14°C11/16°C
14°C12/17°C
15°C12/18°C
15°C13/17°C
15°C13/17°C
14°C12/16°C
15°C13/16°C
16°C13/19°C
14°C12/16°C
14°C11/16°C
15°C10/18°C
16°C13/18°C
15°C12/17°C
15°C12/17°C
14°C11/18°C
15°C11/18°C
15°C11/19°C
15°C12/17°C
14°C10/17°C
17°C15/18°C
17°C14/19°C
--°C/°C
27AQI
27AQI
27AQI
27AQI
2025 Days Vs Air Quality
North Down Holywood A2, Holywood, Ards And North Down, United Kingdom
85%
189
15%
34
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 225 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
North Down Holywood A2, Holywood, Ards And North Down, United Kingdom
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
29AQI
38AQI
41AQI
46AQI
20AQI
24AQI
37AQI
66AQI
60AQI
46AQI
53AQI
27AQI
22AQI
27AQI
38AQI
31AQI
36AQI
47AQI
55AQI
52AQI
40AQI
29AQI
27AQI
24AQI
26AQI
37AQI
29AQI
24AQI
26AQI
35AQI
56AQI
33AQI
26AQI
26AQI
24AQI
44AQI
42AQI
41AQI
44AQI
54AQI
40AQI
51AQI
50AQI
50AQI
56AQI
57AQI
62AQI
69AQI
74AQI
41AQI
37AQI
30AQI
32AQI
30AQI
25AQI
24AQI
24AQI
32AQI
33AQI
52AQI
35AQI
34AQI
33AQI
46AQI
53AQI
53AQI
71AQI
76AQI
36AQI
27AQI
26AQI
21AQI
28AQI
20AQI
25AQI
42AQI
64AQI
87AQI
87AQI
71AQI
30AQI
26AQI
24AQI
27AQI
24AQI
21AQI
26AQI
40AQI
37AQI
39AQI
44AQI
49AQI
56AQI
43AQI
40AQI
38AQI
46AQI
55AQI
52AQI
63AQI
65AQI
45AQI
16AQI
18AQI
17AQI
16AQI
22AQI
37AQI
30AQI
42AQI
24AQI
24AQI
43AQI
54AQI
41AQI
23AQI
30AQI
36AQI
49AQI
62AQI
39AQI
32AQI
21AQI
20AQI
29AQI
28AQI
26AQI
31AQI
43AQI
44AQI
47AQI
47AQI
37AQI
33AQI
30AQI
25AQI
28AQI
28AQI
32AQI
41AQI
30AQI
30AQI
26AQI
17AQI
17AQI
16AQI
18AQI
17AQI
18AQI
20AQI
19AQI
22AQI
24AQI
23AQI
20AQI
18AQI
17AQI
18AQI
65AQI
54AQI
38AQI
44AQI
43AQI
33AQI
26AQI
26AQI
34AQI
32AQI
27AQI
28AQI
40AQI
43AQI
27AQI
23AQI
19AQI
17AQI
18AQI
18AQI
22AQI
22AQI
17AQI
17AQI
15AQI
19AQI
18AQI
16AQI
17AQI
19AQI
17AQI
20AQI
21AQI
25AQI
28AQI
25AQI
24AQI
21AQI
22AQI
20AQI
19AQI
22AQI
22AQI
18AQI
51AQI
61AQI
57AQI
34AQI
28AQI
23AQI
21AQI
18AQI
20AQI
19AQI
20AQI
21AQI
22AQI
25AQI
37AQI
29AQI
23AQI
27AQI
26AQI
27AQI
36AQI
42AQI
41AQI
39AQI
30AQI
29AQI
24AQI
25AQI
No. of days
202534AQI
Highest AQI recorded in
February42AQI
Lowest AQI recorded in
July24AQI
202430AQI
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
July20AQI
202330AQI
Highest AQI recorded in
June37AQI
Lowest AQI recorded in
August22AQI
202233AQI
Highest AQI recorded in
March54AQI
Lowest AQI recorded in
August20AQI
202126AQI
Highest AQI recorded in
December36AQI
Lowest AQI recorded in
October22AQI
202022AQI
Highest AQI recorded in
April33AQI
Lowest AQI recorded in
July16AQI
Most & Least Polluted Years Over the Last 6 Years
North Down Holywood A2's annual 2025 AQI (34) shows an average percentage change of 22.2% (worsened AQI) compared to previous years: 2020 (22), 2021 (26), 2022 (33), 2023 (30), 2024 (30).