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Heat 4/5 high METEOALARM

Heat warning Gros-de-Vaud: level 4, high health risk

Unchanged since the first report last verified 18:13 CEST

Summary

A level 4 out of 5 heat warning is in effect for Gros-de-Vaud. Persistently high temperatures place major strain on the body, and extra caution is needed.

What hazard threatens

High temperatures place significant strain on circulation and health, especially for the elderly, infants and the sick. The risk of forest and wildfires in the region is also rising.

Local weather conditions

Measuring station Villars-Tiercelin, 859 m a.s.l., 4 km from the event

Temperature

27.7 °C

When the warning was issued · 29.07.2026 12:00 CEST

Daily maximum

31.9 °C

on the day of the warning

Humidity

38 %

When the warning was issued · 29.07.2026 12:00 CEST

Day of warning and following days

  • Wed 29.07. 32° 16° 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

Likelihood is assessed as medium and impact as high. Use the guide on protection during heat and drought to prepare and to 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 by ventilating in the morning and at night and shading during the day. Look after vulnerable people nearby and observe any outdoor fire bans in place.

Risk matrix

Event location

Coordinates · WGS84
46.6578° N, 6.7134° E
46°39′28.1″ N   6°42′48.2″ E