Bombarral, Leiria, Portugal 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
Bombarral, Leiria, Portugal
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Bombarral, Leiria, Portugal
6 AM3rd Aug 2025
9 PM
5 AM4th Aug 2025
46AQI
41AQI
49AQI
40AQI
In the last 24 hours,
Bombarral's AQI reached its highest point of 49 at 5 AM during the Night, while the lowest point, 40, was recorded at 1 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Bombarral, Leiria, Portugal
21°C16/27°C
20°C16/25°C
20°C15/26°C
22°C15/32°C
20°C15/27°C
20°C14/24°C
21°C19/24°C
20°C17/24°C
20°C16/25°C
20°C15/25°C
21°C15/31°C
21°C15/27°C
20°C16/26°C
20°C15/25°C
19°C15/24°C
20°C15/24°C
19°C14/24°C
20°C15/26°C
19°C16/24°C
21°C15/29°C
23°C16/34°C
23°C15/34°C
21°C15/28°C
21°C16/25°C
26°C18/36°C
25°C18/36°C
23°C16/32°C
20°C15/27°C
20°C14/27°C
23°C15/34°C
--°C/°C
36AQI
36AQI
36AQI
35AQI
2025 Days Vs Air Quality
Bombarral, Leiria, Portugal
96%
206
4%
9
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 216 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
Bombarral, Leiria, Portugal
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
33AQI
35AQI
35AQI
33AQI
32AQI
28AQI
30AQI
28AQI
25AQI
26AQI
25AQI
34AQI
32AQI
33AQI
43AQI
42AQI
35AQI
36AQI
38AQI
38AQI
37AQI
36AQI
39AQI
37AQI
38AQI
35AQI
33AQI
33AQI
34AQI
31AQI
28AQI
30AQI
33AQI
34AQI
32AQI
34AQI
33AQI
32AQI
31AQI
32AQI
33AQI
33AQI
29AQI
28AQI
29AQI
30AQI
26AQI
28AQI
30AQI
30AQI
32AQI
32AQI
32AQI
32AQI
38AQI
38AQI
45AQI
40AQI
36AQI
34AQI
33AQI
37AQI
32AQI
29AQI
30AQI
31AQI
31AQI
31AQI
33AQI
28AQI
27AQI
27AQI
28AQI
27AQI
25AQI
26AQI
26AQI
26AQI
25AQI
23AQI
23AQI
24AQI
25AQI
30AQI
27AQI
27AQI
27AQI
33AQI
32AQI
28AQI
25AQI
22AQI
23AQI
22AQI
22AQI
20AQI
19AQI
20AQI
16AQI
19AQI
21AQI
22AQI
23AQI
17AQI
17AQI
15AQI
17AQI
15AQI
18AQI
26AQI
31AQI
30AQI
32AQI
34AQI
33AQI
32AQI
27AQI
26AQI
25AQI
24AQI
28AQI
39AQI
27AQI
25AQI
23AQI
23AQI
24AQI
23AQI
22AQI
24AQI
23AQI
23AQI
24AQI
25AQI
28AQI
29AQI
30AQI
23AQI
25AQI
22AQI
21AQI
26AQI
33AQI
31AQI
20AQI
28AQI
31AQI
39AQI
47AQI
42AQI
39AQI
34AQI
33AQI
30AQI
24AQI
19AQI
20AQI
27AQI
48AQI
57AQI
54AQI
45AQI
31AQI
35AQI
32AQI
36AQI
44AQI
53AQI
53AQI
53AQI
44AQI
43AQI
38AQI
46AQI
39AQI
32AQI
26AQI
29AQI
37AQI
41AQI
44AQI
40AQI
40AQI
46AQI
51AQI
54AQI
39AQI
32AQI
43AQI
39AQI
32AQI
28AQI
24AQI
22AQI
28AQI
40AQI
43AQI
34AQI
25AQI
23AQI
24AQI
23AQI
22AQI
25AQI
30AQI
33AQI
40AQI
33AQI
31AQI
47AQI
53AQI
53AQI
44AQI
44AQI
34AQI
32AQI
29AQI
23AQI
27AQI
38AQI
35AQI
47AQI
No. of days
202531AQI
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
April23AQI
202436AQI
Highest AQI recorded in
March43AQI
Lowest AQI recorded in
July31AQI
202333AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
July27AQI
202232AQI
Highest AQI recorded in
March43AQI
Lowest AQI recorded in
November24AQI
202128AQI
Highest AQI recorded in
October36AQI
Lowest AQI recorded in
February8AQI
202025AQI
Highest AQI recorded in
May33AQI
Lowest AQI recorded in
November21AQI
Most & Least Polluted Years Over the Last 6 Years
Bombarral's annual 2025 AQI (31) shows an average percentage change of 4.2% (worsened AQI) compared to previous years: 2020 (25), 2021 (28), 2022 (32), 2023 (33), 2024 (36).