Las Carreras, Portugalete, 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
Las Carreras, Portugalete, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 76 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Las Carreras, Portugalete, Basque Country, Spain
8 AM17th Oct 2025
7 PM
7 AM18th Oct 2025
84AQI
70AQI
87AQI
73AQI
In the last 24 hours,
Las Carreras's AQI reached its highest point of 87 at 12 AM during the Night, while the lowest point, 70, was recorded at 4 PM during the Day between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Las Carreras, Portugalete, Basque Country, Spain
21°C16/29°C
24°C19/32°C
21°C17/26°C
14°C13/16°C
14°C12/16°C
14°C12/15°C
14°C12/17°C
14°C11/18°C
15°C12/19°C
18°C12/25°C
19°C16/22°C
17°C15/20°C
17°C15/20°C
16°C13/20°C
17°C13/23°C
18°C16/21°C
17°C14/22°C
15°C13/17°C
16°C12/21°C
18°C14/24°C
17°C15/21°C
16°C15/19°C
15°C12/18°C
15°C11/21°C
19°C15/24°C
19°C16/24°C
18°C15/21°C
16°C13/20°C
16°C13/20°C
17°C14/22°C
--°C/°C
46AQI
46AQI
50AQI
44AQI
2025 Days Vs Air Quality
Las Carreras, Portugalete, Basque Country, Spain
86%
250
14%
40
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 291 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
Las Carreras, Portugalete, Basque Country, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
45AQI
41AQI
41AQI
37AQI
35AQI
33AQI
29AQI
32AQI
30AQI
27AQI
30AQI
30AQI
36AQI
39AQI
46AQI
50AQI
53AQI
54AQI
64AQI
79AQI
54AQI
47AQI
41AQI
36AQI
31AQI
31AQI
36AQI
31AQI
31AQI
31AQI
32AQI
31AQI
31AQI
32AQI
37AQI
43AQI
46AQI
47AQI
39AQI
38AQI
36AQI
36AQI
34AQI
33AQI
37AQI
37AQI
36AQI
40AQI
44AQI
50AQI
47AQI
43AQI
40AQI
36AQI
33AQI
33AQI
31AQI
35AQI
39AQI
37AQI
34AQI
36AQI
41AQI
46AQI
41AQI
35AQI
33AQI
34AQI
30AQI
28AQI
31AQI
29AQI
26AQI
28AQI
29AQI
29AQI
28AQI
25AQI
28AQI
33AQI
28AQI
26AQI
27AQI
28AQI
32AQI
34AQI
34AQI
33AQI
33AQI
34AQI
37AQI
40AQI
34AQI
33AQI
27AQI
28AQI
30AQI
38AQI
50AQI
47AQI
47AQI
43AQI
40AQI
36AQI
26AQI
22AQI
19AQI
17AQI
16AQI
17AQI
19AQI
19AQI
21AQI
21AQI
24AQI
23AQI
23AQI
29AQI
30AQI
27AQI
29AQI
34AQI
30AQI
31AQI
30AQI
26AQI
29AQI
31AQI
36AQI
34AQI
29AQI
30AQI
30AQI
31AQI
28AQI
32AQI
39AQI
42AQI
38AQI
36AQI
36AQI
31AQI
33AQI
31AQI
32AQI
29AQI
30AQI
33AQI
36AQI
42AQI
40AQI
31AQI
30AQI
33AQI
33AQI
32AQI
32AQI
31AQI
40AQI
53AQI
56AQI
58AQI
58AQI
59AQI
53AQI
43AQI
39AQI
43AQI
46AQI
51AQI
54AQI
54AQI
53AQI
52AQI
54AQI
53AQI
47AQI
43AQI
39AQI
38AQI
41AQI
45AQI
38AQI
36AQI
38AQI
38AQI
37AQI
35AQI
32AQI
33AQI
34AQI
39AQI
40AQI
41AQI
40AQI
37AQI
38AQI
41AQI
37AQI
33AQI
31AQI
28AQI
26AQI
24AQI
23AQI
26AQI
32AQI
36AQI
34AQI
30AQI
27AQI
24AQI
25AQI
25AQI
27AQI
31AQI
37AQI
31AQI
33AQI
34AQI
36AQI
35AQI
46AQI
57AQI
59AQI
59AQI
57AQI
55AQI
56AQI
54AQI
49AQI
37AQI
35AQI
32AQI
31AQI
34AQI
37AQI
43AQI
36AQI
32AQI
26AQI
21AQI
20AQI
22AQI
21AQI
26AQI
26AQI
25AQI
26AQI
28AQI
24AQI
22AQI
22AQI
27AQI
25AQI
26AQI
23AQI
22AQI
23AQI
25AQI
31AQI
41AQI
43AQI
33AQI
25AQI
22AQI
21AQI
22AQI
23AQI
17AQI
20AQI
28AQI
31AQI
42AQI
61AQI
64AQI
59AQI
50AQI
55AQI
62AQI
60AQI
54AQI
55AQI
60AQI
67AQI
63AQI
67AQI
72AQI
73AQI
76AQI
40AQI
38AQI
32AQI
29AQI
33AQI
45AQI
34AQI
38AQI
26AQI
61AQI
No. of days
202537AQI
Highest AQI recorded in
October61AQI
Lowest AQI recorded in
September26AQI
202429AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
July24AQI
202328AQI
Highest AQI recorded in
May34AQI
Lowest AQI recorded in
November25AQI
202226AQI
Highest AQI recorded in
October30AQI
Lowest AQI recorded in
December25AQI
Most & Least Polluted Years Over the Last 4 Years
Las Carreras's annual 2025 AQI (37) shows an average percentage change of 32.3% (worsened AQI) compared to previous years: 2022 (26), 2023 (28), 2024 (29).