Terrain, Redondo, Evora, Portugal Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Terrain, Redondo, Evora, Portugal
AQI Trends: Highest and Lowest
Same Day Analysis (9th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Mar - 10th Mar 2026
Terrain, Redondo, Evora, Portugal
7 AM9th Mar 2026
6 PM
6 AM10th Mar 2026
48AQI
29AQI
58AQI
23AQI
In the last 24 hours,
Terrain's AQI reached its highest point of 58 at 7 PM during the Night, while the lowest point, 23, was recorded at 4 AM during the Night between 9th Mar and 10th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Terrain, Redondo, Evora, Portugal
14°C11/15°C
14°C14/15°C
14°C13/16°C
12°C10/15°C
10°C8/11°C
8°C6/12°C
9°C6/13°C
11°C7/14°C
10°C8/13°C
9°C6/13°C
8°C5/13°C
9°C4/15°C
11°C6/17°C
12°C8/19°C
13°C9/20°C
13°C9/19°C
13°C10/18°C
14°C9/20°C
11°C7/15°C
9°C4/15°C
11°C6/18°C
11°C8/15°C
12°C8/18°C
13°C9/18°C
10°C6/15°C
8°C5/11°C
9°C6/13°C
10°C5/15°C
7°C5/10°C
7°C3/13°C
51AQI
32AQI
65AQI
32AQI
2026 Days Vs Air Quality
Terrain, Redondo, Evora, Portugal
90%
61
10%
7
Total number of days with different AQI categories in last 70 days in 2026 (295 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 70 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
Terrain, Redondo, Evora, Portugal
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
20AQI (US)
13AQI (US)
15AQI (US)
27AQI (US)
23AQI (US)
23AQI (US)
35AQI (US)
24AQI (US)
21AQI (US)
30AQI (US)
20AQI (US)
20AQI (US)
23AQI (US)
12AQI (US)
10AQI (US)
18AQI (US)
17AQI (US)
17AQI (US)
15AQI (US)
12AQI (US)
46AQI (US)
67AQI (US)
46AQI (US)
54AQI (US)
50AQI (US)
40AQI (US)
43AQI (US)
47AQI (US)
63AQI (US)
48AQI (US)
48AQI (US)
52AQI (US)
50AQI (US)
46AQI (US)
53AQI (US)
46AQI (US)
44AQI (US)
47AQI (US)
51AQI (US)
45AQI (US)
42AQI (US)
39AQI (US)
50AQI (US)
53AQI (US)
43AQI (US)
46AQI (US)
45AQI (US)
44AQI (US)
46AQI (US)
36AQI (US)
34AQI (US)
37AQI (US)
40AQI (US)
46AQI (US)
31AQI (US)
34AQI (US)
38AQI (US)
30AQI (US)
39AQI (US)
50AQI (US)
47AQI (US)
46AQI (US)
42AQI (US)
31AQI (US)
43AQI (US)
40AQI (US)
39AQI (US)
30AQI (US)
43AQI (US)
42AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202531AQI (US)
Highest AQI (US) recorded in
August43AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
202429AQI (US)
Highest AQI (US) recorded in
November37AQI (US)
Lowest AQI (US) recorded in
January22AQI (US)
202327AQI (US)
Highest AQI (US) recorded in
August37AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
August61AQI (US)
Lowest AQI (US) recorded in
November17AQI (US)
202124AQI (US)
Highest AQI (US) recorded in
August32AQI (US)
Lowest AQI (US) recorded in
October14AQI (US)
202019AQI (US)
Highest AQI (US) recorded in
July23AQI (US)
Lowest AQI (US) recorded in
April12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Terrain's annual 2026 AQI (US) (37) shows an average percentage change of 43.05% (worsened AQI (US)) compared to previous years: 2020 (19), 2021 (24), 2022 (29), 2023 (27), 2024 (29), 2025 (31).