Riehen, Basel Stadt, Switzerland 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
Riehen, Basel Stadt, Switzerland
AQI Trends: Highest and Lowest
Same Day Analysis (13th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2025 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Mar - 13th Mar 2026
Riehen, Basel Stadt, Switzerland
7 AM12th Mar 2026
6 PM
6 AM13th Mar 2026
34AQI
12AQI
53AQI
31AQI
In the last 24 hours,
Riehen's AQI reached its highest point of 53 at 2 AM during the Night, while the lowest point, 12, was recorded at 3 PM during the Day between 12th Mar and 13th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Riehen, Basel Stadt, Switzerland
8°C5/9°C
7°C5/11°C
3°C0/5°C
2°C0/4°C
6°C4/8°C
3°C-1/6°C
1°C-2/3°C
5°C1/9°C
5°C3/7°C
6°C4/10°C
8°C4/12°C
9°C8/13°C
9°C6/13°C
9°C5/17°C
11°C6/17°C
11°C6/19°C
9°C7/11°C
8°C4/12°C
8°C3/15°C
8°C3/15°C
8°C3/15°C
9°C3/17°C
9°C5/16°C
10°C5/17°C
10°C5/17°C
11°C7/16°C
10°C5/15°C
9°C5/14°C
7°C3/12°C
8°C2/16°C
41AQI
35AQI
50AQI
40AQI
2026 Days Vs Air Quality
Riehen, Basel Stadt, Switzerland
69%
50
29%
21
1%
1
Total number of days with different AQI categories in last 73 days in 2026 (292 days remaining)
Under WHO’s Safe Air Quality Limits: 69%
Health Risk Level:
Moderate
In 2026, 69% of 73 days were within WHO’s safe air quality limits, and 31% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Riehen, Basel Stadt, Switzerland
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
111AQI (US)
51AQI (US)
23AQI (US)
41AQI (US)
47AQI (US)
60AQI (US)
72AQI (US)
56AQI (US)
18AQI (US)
10AQI (US)
47AQI (US)
48AQI (US)
39AQI (US)
40AQI (US)
46AQI (US)
50AQI (US)
64AQI (US)
74AQI (US)
61AQI (US)
58AQI (US)
59AQI (US)
62AQI (US)
74AQI (US)
68AQI (US)
76AQI (US)
89AQI (US)
22AQI (US)
28AQI (US)
33AQI (US)
37AQI (US)
40AQI (US)
48AQI (US)
52AQI (US)
48AQI (US)
33AQI (US)
53AQI (US)
46AQI (US)
15AQI (US)
29AQI (US)
48AQI (US)
40AQI (US)
20AQI (US)
23AQI (US)
38AQI (US)
42AQI (US)
35AQI (US)
35AQI (US)
39AQI (US)
35AQI (US)
36AQI (US)
28AQI (US)
21AQI (US)
22AQI (US)
32AQI (US)
27AQI (US)
33AQI (US)
32AQI (US)
36AQI (US)
34AQI (US)
34AQI (US)
47AQI (US)
45AQI (US)
44AQI (US)
60AQI (US)
63AQI (US)
70AQI (US)
83AQI (US)
67AQI (US)
45AQI (US)
23AQI (US)
20AQI (US)
39AQI (US)
52AQI (US)
35AQI (US)
49AQI (US)
No. of days
202645AQI (US)
Highest AQI (US) recorded in
January52AQI (US)
Lowest AQI (US) recorded in
February35AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
February62AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
202434AQI (US)
Highest AQI (US) recorded in
January52AQI (US)
Lowest AQI (US) recorded in
October24AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
February55AQI (US)
Lowest AQI (US) recorded in
November24AQI (US)
202241AQI (US)
Highest AQI (US) recorded in
March72AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
February55AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202039AQI (US)
Highest AQI (US) recorded in
March56AQI (US)
Lowest AQI (US) recorded in
October29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Riehen's annual 2026 AQI (US) (45) shows an average percentage change of 15.8% (worsened AQI (US)) compared to previous years: 2020 (39), 2021 (40), 2022 (41), 2023 (37), 2024 (34), 2025 (42).