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Heat 4/5 high METEOALARM

Heat warning level 4 issued for Leventina

This warning was lifted on 05.08.2026 20:00 CEST and is no longer active.

Summary

Since 29 July 2026, 10:00 UTC, a level 4 heat warning applies to Leventina. Persistently high temperatures are placing significant strain on health.

What hazard threatens

High temperatures strain the circulation and health, especially of the elderly, infants and the sick; the risk of forest and wildfires rises in the Leventina region.

Local weather conditions

Measuring station Robièi, 1898 m a.s.l., 12 km from the event

Temperature

18.8 °C

When the warning was issued · 29.07.2026 12:00 CEST

Daily maximum

20.5 °C

on the day of the warning

Humidity

72 %

When the warning was issued · 29.07.2026 12:00 CEST

Day of warning and following days

  • Wed 29.07. 21° 14° 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 rated medium and impact high. Prepare with targeted measures against heat stress and observe local outdoor fire bans.

What to do now

Drink enough, avoid the midday heat and physical exertion outdoors, keep living spaces cool by ventilating in the morning and shading during the day, and look after vulnerable people around you.

Risk matrix

Event location

Coordinates · WGS84
46.4935° N, 8.6551° E
46°29′36.7″ N   8°39′18.3″ E