Splash image

"The data never speaks for itself." ( Nate Silver , 1978 )


Open Data Insight of the Day

Data Insights are generated from a wide range of open-data sources—on daily, monthly, and yearly schedules, or whenever predefined conditions are met (for example, pollutant limits exceeded or values rising above the historical 95th percentile). Register as a user or Login to subscribe to your preferred insights and receive notifications by mail so you never miss a noteworthy change. If you are not registered, you can still explore all published insights on this site via Explore published insights.


Previous Next

November Noise Monitoring Report for Basel

Published: December 26, 2025  ·  Period: 2025-11-01 – 2025-11-30

In November 2025, the average noise level at Feldbergstrasse station was 68.7 dB, with a peak of 93.2 dB occurring on November 27th, while in 2023, the station recorded significantly lower noise levels, averaging 24.1 dB. This indicates a substantial deviation from the typical noise levels, which are generally comparable to street traffic.

In November 2025, the average noise level at the Feldbergstrasse station was 68.7 dB, with a maximum recorded noise level of 93.2 dB. This peak occurred on November 27th between 6:00 and 8:59 AM. The noise levels at Feldbergstrasse are considered very loud, as they fall within the 70-80 dB range, which is comparable to street traffic. Other stations with recorded values in November 2025 include Grenzacherstrasse and Zuercherstrasse148.

Since 2020, the average noise level at Feldbergstrasse has been 68.7 dB, with a maximum of 93.2 dB and a 99th percentile of 88.0 dB. In comparison, the average noise level in November 2025 was slightly lower at 68.7 dB, but the maximum remained the same. Notably, the noise levels at Feldbergstrasse in 2023 were significantly lower, with an average and maximum of only 24.1 dB, indicating a notable deviation from the historic values.

The highest noise level at Feldbergstrasse was 93.2 dB on November 27th, 2025, between 6:00 and 8:59 AM. The all-time lowest noise level at this station was 24.1 dB, recorded in 2023.

Noise levels are measured in decibels (dB), a logarithmic unit. A 10 dB increase represents a tenfold increase in sound intensity. For context, a quiet room is about 30 dB, normal conversation ranges from 50 to 60 dB, and street traffic can reach 70 to 80 dB.

For more detailed information on noise monitoring, readers can refer to additional sources.


Table 1: Day and Night Noise Levesl in November at Feldbergstrasse
Year Day Average [dB] Day Maximum [dB] Night Average [dB] Night Maximum [dB]
2020 70.0 88.0 65.5 86.8
2021 62.6 85.6 59.7 84.9
2022 71.9 88.3 68.1 87.2
2023 24.1 24.1 24.1 24.1
2024 63.9 90.2 61.1 88.7
2025 71.8 93.2 68.5 87.4

Figure 1: Average Noise Level by Time of Day in November at Station Feldbergstrasse (last 5 Years)

Data source: opendata.bs.ch, Smart Climate Schallpegelmessungen
Additional resources: Smart Climate - Projektabschluss, BAFU.admin.ch: Grenzwerte für Lärm

🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.