Sangroniz, Bilbao, Basque Country, Spain Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Sangroniz, Bilbao, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 62 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Sangroniz, Bilbao, Basque Country, Spain
7 AM3rd Oct 2025
8 PM
6 AM4th Oct 2025
97AQI
55AQI
75AQI
57AQI
In the last 24 hours,
Sangroniz's AQI reached its highest point of 97 at 4 PM during the Day, while the lowest point, 55, was recorded at 6 PM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Sangroniz, Bilbao, Basque Country, Spain
19°C17/22°C
19°C15/25°C
25°C18/35°C
23°C19/29°C
17°C16/17°C
17°C15/20°C
17°C16/19°C
19°C16/23°C
18°C17/20°C
18°C15/22°C
21°C16/27°C
19°C17/21°C
19°C17/24°C
20°C16/26°C
22°C16/31°C
25°C21/35°C
22°C17/27°C
15°C13/16°C
14°C12/16°C
14°C13/16°C
14°C13/18°C
15°C11/19°C
15°C11/20°C
19°C13/27°C
19°C16/23°C
18°C15/20°C
17°C15/21°C
16°C13/21°C
18°C13/24°C
19°C16/22°C
--°C/°C
39AQI
29AQI
33AQI
29AQI
2025 Days Vs Air Quality
Sangroniz, Bilbao, Basque Country, Spain
87%
239
13%
37
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 277 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
Sangroniz, Bilbao, Basque Country, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI
24AQI
26AQI
25AQI
21AQI
23AQI
25AQI
23AQI
25AQI
25AQI
27AQI
23AQI
37AQI
49AQI
56AQI
56AQI
54AQI
51AQI
37AQI
28AQI
25AQI
24AQI
27AQI
24AQI
19AQI
31AQI
39AQI
29AQI
28AQI
27AQI
33AQI
32AQI
33AQI
31AQI
39AQI
50AQI
56AQI
46AQI
41AQI
44AQI
46AQI
37AQI
38AQI
35AQI
39AQI
43AQI
42AQI
43AQI
46AQI
52AQI
39AQI
37AQI
27AQI
32AQI
24AQI
25AQI
24AQI
37AQI
41AQI
38AQI
29AQI
40AQI
45AQI
44AQI
27AQI
24AQI
26AQI
27AQI
26AQI
26AQI
29AQI
26AQI
26AQI
38AQI
37AQI
38AQI
22AQI
19AQI
34AQI
23AQI
17AQI
20AQI
28AQI
38AQI
45AQI
52AQI
40AQI
23AQI
30AQI
38AQI
51AQI
52AQI
20AQI
32AQI
17AQI
29AQI
40AQI
61AQI
70AQI
58AQI
40AQI
39AQI
39AQI
39AQI
19AQI
15AQI
19AQI
20AQI
15AQI
16AQI
22AQI
28AQI
34AQI
27AQI
34AQI
19AQI
23AQI
47AQI
27AQI
24AQI
28AQI
38AQI
23AQI
29AQI
22AQI
21AQI
34AQI
43AQI
46AQI
36AQI
29AQI
34AQI
33AQI
33AQI
23AQI
44AQI
50AQI
52AQI
43AQI
36AQI
41AQI
23AQI
35AQI
35AQI
36AQI
20AQI
27AQI
34AQI
42AQI
51AQI
36AQI
23AQI
26AQI
37AQI
38AQI
27AQI
28AQI
22AQI
44AQI
57AQI
63AQI
61AQI
59AQI
65AQI
45AQI
33AQI
34AQI
41AQI
46AQI
56AQI
59AQI
57AQI
56AQI
53AQI
56AQI
51AQI
47AQI
42AQI
44AQI
40AQI
47AQI
47AQI
35AQI
31AQI
38AQI
38AQI
33AQI
31AQI
29AQI
31AQI
35AQI
44AQI
45AQI
44AQI
43AQI
38AQI
41AQI
45AQI
36AQI
31AQI
27AQI
26AQI
25AQI
24AQI
21AQI
34AQI
46AQI
49AQI
38AQI
29AQI
23AQI
21AQI
25AQI
23AQI
27AQI
31AQI
35AQI
30AQI
34AQI
34AQI
31AQI
34AQI
48AQI
56AQI
58AQI
58AQI
56AQI
55AQI
56AQI
53AQI
50AQI
40AQI
37AQI
33AQI
32AQI
34AQI
38AQI
45AQI
38AQI
35AQI
28AQI
22AQI
22AQI
23AQI
23AQI
29AQI
25AQI
26AQI
26AQI
28AQI
25AQI
22AQI
23AQI
30AQI
26AQI
27AQI
24AQI
23AQI
29AQI
31AQI
54AQI
55AQI
47AQI
22AQI
18AQI
20AQI
24AQI
28AQI
30AQI
34AQI
39AQI
29AQI
33AQI
39AQI
54AQI
62AQI
32AQI
39AQI
31AQI
33AQI
35AQI
45AQI
35AQI
39AQI
29AQI
52AQI
No. of days
202535AQI
Highest AQI recorded in
October52AQI
Lowest AQI recorded in
September29AQI
202434AQI
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
March28AQI
202339AQI
Highest AQI recorded in
February51AQI
Lowest AQI recorded in
November28AQI
202243AQI
Highest AQI recorded in
July63AQI
Lowest AQI recorded in
November24AQI
202139AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
December30AQI
202038AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
December25AQI
Most & Least Polluted Years Over the Last 6 Years
Sangroniz's annual 2025 AQI (35) shows an average percentage change of -8.1% (improved AQI) compared to previous years: 2020 (38), 2021 (39), 2022 (43), 2023 (39), 2024 (34).