Heat warning for Vallée du Trient: level 4/5
This warning was lifted on 05.08.2026 20:00 CEST and is no longer active.
Summary
A level 4/5 heat warning is in effect for Vallée du Trient. Persistently high temperatures are placing a heavy strain on health and circulation.
What hazard threatens
The ongoing heat places a heavy strain on circulation and health, especially for the elderly, infants and the sick. In Vallée du Trient, the risk of forest and wildland fires is also rising.
Local weather conditions
Measuring station Les Marécottes, 990 m a.s.l., 5 km from the event
27.0 °C
30.1 °C
48 %
Day of warning and following days
- Wed 29.07. 30° 20° measured
As of: Values as at the time of the warning; they are not updated afterwards.
Source: MeteoSwiss
Context & protective measures
Background: heat waves are becoming more frequent and intense in Switzerland. The greatest danger is the health burden from persistently high day and night temperatures, which favour dehydration, heat stroke and circulatory problems. The elderly, the chronically ill, pregnant women and infants are particularly at risk.
Recommendation
The likelihood of occurrence is rated medium and the potential impact high. Use the linked guide on protection against heat and drought to prepare yourself and look after vulnerable people around you.
What to do now
Drink enough fluids, avoid the midday heat and physical exertion outdoors. Keep living spaces cool, look after vulnerable people nearby, and observe any current outdoor fire bans.
Risk matrix
Event location
- Coordinates · WGS84
- 46.0715° N, 7.0135° E
- 46°04′17.2″ N 7°00′48.6″ E