Tarragona, Catalonia, Spain 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
Tarragona, Catalonia, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Tarragona, Catalonia, Spain
6 AM3rd Aug 2025
9 PM
5 AM4th Aug 2025
38AQI
32AQI
39AQI
34AQI
In the last 24 hours,
Tarragona's AQI reached its highest point of 39 at 5 AM during the Night, while the lowest point, 32, was recorded at 11 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Tarragona, Catalonia, Spain
27°C25/30°C
27°C24/30°C
26°C23/30°C
24°C20/30°C
24°C23/25°C
25°C24/27°C
26°C24/27°C
24°C22/26°C
25°C22/27°C
26°C24/28°C
26°C24/29°C
27°C24/29°C
27°C25/29°C
27°C25/29°C
27°C25/29°C
27°C25/30°C
26°C24/27°C
25°C24/27°C
26°C25/27°C
23°C20/26°C
24°C20/28°C
24°C20/29°C
26°C22/29°C
25°C22/28°C
24°C20/27°C
24°C20/27°C
25°C22/27°C
25°C23/27°C
25°C22/29°C
25°C22/27°C
--°C/°C
35AQI
35AQI
37AQI
35AQI
2025 Days Vs Air Quality
Tarragona, Catalonia, Spain
79%
168
21%
46
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% of 216 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
Tarragona, Catalonia, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI
51AQI
44AQI
45AQI
52AQI
54AQI
30AQI
29AQI
35AQI
26AQI
25AQI
26AQI
30AQI
52AQI
66AQI
67AQI
48AQI
52AQI
61AQI
65AQI
67AQI
70AQI
69AQI
52AQI
57AQI
46AQI
42AQI
35AQI
25AQI
30AQI
26AQI
33AQI
45AQI
49AQI
55AQI
63AQI
66AQI
73AQI
54AQI
34AQI
45AQI
41AQI
45AQI
39AQI
40AQI
48AQI
56AQI
64AQI
68AQI
61AQI
61AQI
63AQI
55AQI
49AQI
45AQI
47AQI
29AQI
32AQI
48AQI
42AQI
38AQI
41AQI
42AQI
44AQI
41AQI
42AQI
38AQI
40AQI
28AQI
32AQI
27AQI
28AQI
29AQI
27AQI
30AQI
33AQI
36AQI
33AQI
44AQI
56AQI
39AQI
24AQI
22AQI
28AQI
31AQI
34AQI
37AQI
26AQI
20AQI
26AQI
33AQI
34AQI
28AQI
29AQI
39AQI
33AQI
27AQI
39AQI
49AQI
46AQI
46AQI
45AQI
51AQI
45AQI
38AQI
21AQI
18AQI
20AQI
32AQI
18AQI
17AQI
19AQI
19AQI
22AQI
31AQI
35AQI
21AQI
19AQI
30AQI
32AQI
32AQI
40AQI
49AQI
50AQI
27AQI
23AQI
24AQI
27AQI
29AQI
29AQI
30AQI
26AQI
28AQI
32AQI
32AQI
28AQI
37AQI
39AQI
35AQI
29AQI
32AQI
29AQI
26AQI
27AQI
31AQI
31AQI
31AQI
34AQI
36AQI
40AQI
39AQI
39AQI
34AQI
35AQI
39AQI
42AQI
52AQI
50AQI
48AQI
48AQI
51AQI
53AQI
57AQI
66AQI
70AQI
63AQI
55AQI
50AQI
51AQI
52AQI
53AQI
52AQI
51AQI
51AQI
55AQI
51AQI
48AQI
48AQI
49AQI
50AQI
46AQI
45AQI
52AQI
47AQI
48AQI
49AQI
46AQI
39AQI
31AQI
37AQI
38AQI
39AQI
38AQI
33AQI
30AQI
31AQI
35AQI
39AQI
41AQI
44AQI
42AQI
38AQI
33AQI
33AQI
30AQI
26AQI
27AQI
31AQI
30AQI
31AQI
31AQI
32AQI
38AQI
37AQI
46AQI
50AQI
34AQI
31AQI
32AQI
50AQI
37AQI
38AQI
No. of days
202540AQI
Highest AQI recorded in
June50AQI
Lowest AQI recorded in
April31AQI
202435AQI
Highest AQI recorded in
November46AQI
Lowest AQI recorded in
May27AQI
202334AQI
Highest AQI recorded in
February42AQI
Lowest AQI recorded in
September29AQI
202232AQI
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
April24AQI
202126AQI
Highest AQI recorded in
August32AQI
Lowest AQI recorded in
January14AQI
202022AQI
Highest AQI recorded in
August27AQI
Lowest AQI recorded in
December16AQI
Most & Least Polluted Years Over the Last 6 Years
Tarragona's annual 2025 AQI (40) shows an average percentage change of 37.9% (worsened AQI) compared to previous years: 2020 (22), 2021 (26), 2022 (32), 2023 (34), 2024 (35).