Europe, 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!
February Air Quality Analysis
Europe, Bilbao, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (5th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 41 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Feb - 5th Feb 2026
Europe, Bilbao, Basque Country, Spain
8 AM4th Feb 2026
6 PM
7 AM5th Feb 2026
39AQI
8AQI
56AQI
22AQI
In the last 24 hours,
Europe's AQI reached its highest point of 56 at 2 AM during the Night, while the lowest point, 8, was recorded at 12 PM during the Day between 4th Feb and 5th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Europe, Bilbao, Basque Country, Spain
3°C0/8°C
7°C4/11°C
7°C6/8°C
6°C6/7°C
7°C4/12°C
13°C11/14°C
11°C7/15°C
11°C8/14°C
9°C7/11°C
9°C6/11°C
5°C3/6°C
5°C4/8°C
7°C4/11°C
8°C5/12°C
11°C8/13°C
9°C7/12°C
8°C6/11°C
6°C3/10°C
7°C5/10°C
8°C5/11°C
10°C5/13°C
6°C3/10°C
10°C6/15°C
9°C5/13°C
7°C5/11°C
8°C6/11°C
10°C8/15°C
9°C7/12°C
10°C7/15°C
11°C10/14°C
23AQI
18AQI
27AQI
19AQI
2026 Days Vs Air Quality
Europe, Bilbao, Basque Country, Spain
100%
36
Total number of days with different AQI categories in last 38 days in 2026 (327 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 38 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
Europe, Bilbao, Basque Country, Spain
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI (US)
27AQI (US)
20AQI (US)
20AQI (US)
26AQI (US)
19AQI (US)
18AQI (US)
16AQI (US)
14AQI (US)
15AQI (US)
18AQI (US)
11AQI (US)
17AQI (US)
19AQI (US)
17AQI (US)
15AQI (US)
42AQI (US)
15AQI (US)
20AQI (US)
23AQI (US)
11AQI (US)
30AQI (US)
42AQI (US)
29AQI (US)
41AQI (US)
39AQI (US)
29AQI (US)
10AQI (US)
21AQI (US)
23AQI (US)
12AQI (US)
24AQI (US)
9AQI (US)
22AQI (US)
21AQI (US)
41AQI (US)
22AQI (US)
23AQI (US)
No. of days
202623AQI (US)
Highest AQI (US) recorded in
February23AQI (US)
Lowest AQI (US) recorded in
January22AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
June49AQI (US)
Lowest AQI (US) recorded in
November26AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
November43AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
February69AQI (US)
Lowest AQI (US) recorded in
December28AQI (US)
202247AQI (US)
Highest AQI (US) recorded in
July64AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202146AQI (US)
Highest AQI (US) recorded in
March58AQI (US)
Lowest AQI (US) recorded in
January40AQI (US)
202041AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
December30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Europe's annual 2026 AQI (US) (23) shows an average percentage change of -44.9% (improved AQI (US)) compared to previous years: 2020 (41), 2021 (46), 2022 (47), 2023 (40), 2024 (37), 2025 (37).