As part of the “Parmenion-25” exercise, the Hellenic Civil Defense will conduct a nationwide test of warning sirens on Wednesday, October 1, 2025. The activation is strictly a test, and citizens are advised that there is no cause for concern.
Siren Activation Schedule
- 11:00 – Air raid alarm, 60 seconds (intermittent sound, varying intensity) nationwide.
- 11:05 – End of alarm, 60 seconds (continuous steady sound) nationwide.
- 11:10 – Air raid alarm, 60 seconds (intermittent sound) in the Northeast Sector (Eastern Macedonia & Thrace, Lesvos, Lemnos).
- 11:15 – End of alarm, 60 seconds (continuous sound) in the Northeast Sector.
- 11:20 – Air raid alarm, 60 seconds (intermittent sound) in the South Sector (South Aegean, Crete, Arcadia, Messinia, Laconia).
- 11:25 – End of alarm, 60 seconds (continuous sound) in the South Sector.
- 11:30 – CBRN (Chemical, Biological, Radiological, Nuclear) threat alarm, 120 seconds (intermittent sound) nationwide.
- 11:35 – End of alarm, 60 seconds (continuous sound) nationwide.
- 12:20 – CBRN threat alarm, 120 seconds (intermittent sound) in the West Sector (Central & Western Macedonia, Epirus).
- 12:25 – End of alarm, 60 seconds (continuous sound) in the West Sector.
- 12:30 – CBRN attack alarm, 120 seconds (intermittent sound) in the Central Sector (Western Macedonia, Epirus, Thessaly).
- 12:35 – End of alarm, 60 seconds (continuous sound) in the Central Sector.
- 12:40 – CBRN attack alarm, 120 seconds (intermittent sound) in Attica Region and Thessaloniki Regional Unit.
- 12:45 – End of alarm, 60 seconds (continuous sound) in Attica and Thessaloniki.
- 12:50 – CBRN threat alarm, 120 seconds (intermittent sound) in the East Sector (Central Greece, Attica, North & South Aegean, Corinthia, Argolida).
- 12:55 – End of alarm, 60 seconds (continuous sound) in the East Sector.
Important Notice
The Civil Defense emphasizes that the siren activation is only a test. There is no reason for confusion or concern.
At the same time, church bells across Greece will sound short, rapid rings for three minutes, in coordination with the siren test.
