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Heat 4/5 high METEOALARM

Heat warning level 4: Rheinfelden under severe strain

Unchanged since the first report last verified 17:28 CEST

Summary

A level 4 out of 5 heat warning is in effect for Rheinfelden. Persistently high temperatures are placing significant strain on health.

What hazard threatens

Persistently high day and night temperatures raise the risk of dehydration, heat stroke and circulatory problems, particularly for the elderly, infants and the sick. The risk of forest and wildfires is also increasing.

Local weather conditions

Measuring station Möhlin, 343 m a.s.l., 4 km from the event

Temperature

32.2 °C

When the warning was issued · 29.07.2026 12:00 CEST

Daily maximum

36.7 °C

on the day of the warning

Humidity

31 %

When the warning was issued · 29.07.2026 12:00 CEST

Day of warning and following days

  • Wed 29.07. 37° 19° 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. Drink enough fluids, avoid physical exertion outdoors during the midday heat, and keep living spaces cool by ventilating in the morning and at night while shading them during the day.

What to do now

Check your water supply and cooling options now, look after vulnerable people around you, and observe any outdoor fire bans in force.

Risk matrix

Event location

Coordinates · WGS84
47.5360° N, 7.8925° E
47°32′09.7″ N   7°53′33.1″ E