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Heat 4/5 high METEOALARM

Heat warning level 4: Kerenzerberg-Seeztal affected

Unchanged since the first report last verified 18:13 CEST

Summary

A level 4 of 5 heat warning is in effect for Kerenzerberg-Seeztal. Persistently high temperatures are straining health and circulation.

What hazard threatens

The persistent heat strains circulation and health, especially for the elderly, infants and the sick. The risk of forest and wildland fires also rises due to the dryness.

Local weather conditions

Measuring station Glarus, 517 m a.s.l., 15 km from the event

Temperature

29.9 °C

When the warning was issued · 29.07.2026 12:00 CEST

Daily maximum

33.7 °C

on the day of the warning

Humidity

40 %

When the warning was issued · 29.07.2026 12:00 CEST

Day of warning and following days

  • Wed 29.07. 34° 18° 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, impact high. Use the linked guide on protection against heat and drought to prepare and to protect vulnerable people around you.

What to do now

Drink enough, avoid midday heat and physical exertion outdoors. Ventilate rooms at night and in the morning, shade them during the day. Look after vulnerable people and observe outdoor fire bans.

Risk matrix

Event location

Coordinates · WGS84
47.0964° N, 9.2481° E
47°05′47.1″ N   9°14′53.3″ E