The city of science is participating in the nationwide warning day on September 11th
On Thursday, September 11, the city of Darmstadt will participate in the nationwide warning day . Starting at 11:00 a.m., sirens will sound throughout the city, and warnings will simultaneously be issued via familiar warning apps such as NINA and hessenWARN , as well as on electronic city information boards. For the first time, the test alarm will also be sent directly to compatible mobile phones via cell broadcast .
The test alarm begins with a one-minute-long, rising and falling siren, which serves as a "warning to the population" . At 11:45 a.m., the test ends with a one-minute continuous tone as the "all clear .
Behavior in the event of a genuine warning
In case of an emergency, citizens should observe the following measures:
- Seek shelter indoors, close doors and windows
- Turn on the radio or television and listen to the announcements
- Inform your neighbors
- Warning apps like NINA or hessenWARN monitor
- Switch off ventilation and air conditioning systems
Cell Broadcast: Warning directly to your mobile phone
Cell Broadcast enables direct delivery of warning messages to mobile phones – even without an installed app. This requires a current operating system and activated test alerts in the notification settings. The Federal Office of Civil Protection and Disaster Relief (BBK) .
Further information, also in several languages, is available online from the Darmstadt Fire Department and the BBK .
Upcoming events in Darmstadt
- December 11, 2025
- March 12, 2026 (Nationwide Warning Day)
- June 11, 2026
- September 10, 2026 (Nationwide Warning Day)
- December 10, 2026
(DARMSTADT – RED/PSD)
