This Wednesday, January 8, don't be surprised to hear alarm sirens sounding across the Paris region, and indeed all over France. Exceptionally, the monthly test of the Système d'Alerte et d'Information des Populations (SAIP), usually held on the first Wednesday of every month, has been postponed for a week. In fact, the ringing should have taken place this Wednesday, January 1ᵉʳ, 2025.
The calendar explains this derogation. Traditionally, warning sirens are activated every first Wednesday of the month, but this year, January 1ᵉʳ fell on a public holiday, resulting in the test being postponed to January 8. This measure, confirmed by the prefectures, aims to avoid disrupting the Christmas holiday truce while respecting the need to test warning infrastructures.
The activation time remains unchanged. The sirens will sound according to a specific schedule, depending on the region:
In the Île-de-France region, sirens will sound at 11:45 a.m., as in other areas of northern France.
The test signal, lasting 1 minute and 41 seconds, is not arbitrary. This timing has been carefully calculated since the introduction of SAIP after the Second World War, allowing the sirens to ramp up and silence efficiently, ensuring that the sound is heard by everyone, everywhere.
In the event of a real alert, the protocol calls for a signal consisting of three similar sequences, interspersed with five-second silences, followed by a 30-second end-of-alert signal. It's essential to remember that these tests are preventive measures. In a real emergency situation, the safety instructions are clear: take shelter inside buildings or evacuate high-risk areas, thereby facilitating the intervention of emergency services and minimizing potential impacts.
SAIP, a pillar of France's civil protection system, provides an effective means of alerting the population to various threats, be they natural, technological, health-related or air safety-related. This system demonstrates that safety infrastructures are not only in place, but also actively maintained for the safety of all.
So, when the sirens sound this Wednesday, January 8, 2025, don't worry, it's just a test to check the functionality of the systems, an essential step to guarantee responsiveness in the event of a real emergency. The sounding of these sirens will not signal anything alarming: they are part of an exercise in prevention that is essential to ensure everyone's safety.