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Drought 4/5 high BAFU-TROCKENHEIT

Persistent drought in the Bündner Südtäler valleys

Unchanged since the first report last verified 18:13 CEST

Summary

The Bündner Südtäler region is experiencing drought at level 4/5, recorded on 30 July 2026. Conserving water and observing fire bans is now essential.

What hazard threatens

Prolonged drought is straining drinking water supply and agriculture in the region and markedly raising the risk of forest and field fires.

Local weather conditions

Measuring station Passo del Bernina, 2260 m a.s.l., 2 km from the event

Daily maximum

21.9 °C

on the day of the warning · Reported at 02:00

Precipitation, 30 days before the warning

38 mm

Days without precipitation before the warning (min. 1 mm)

4

Day of warning and following days

  • Thu 30.07. 22° 11° measured

As of: Values as at the time of the warning; they are not updated afterwards.

Source: MeteoSwiss

Context & protective measures

Background: dry spells are becoming more frequent and longer in Switzerland. Prolonged drought lowers groundwater and spring levels, strains the drinking-water supply of smaller municipalities and agriculture, and markedly increases the risk of forest and field fires. The FOEN rates the situation by region across several warning levels.

Recommendation

The likelihood is low, but the impact is high. Use the linked guide to prepare in a targeted way.

What to do now

Use drinking water sparingly, observe municipal water-use restrictions and fire bans, avoid open fires and barbecuing in the forest, and keep a drinking-water reserve.

Risk matrix

Event location

Coordinates · WGS84
46.4115° N, 10.0507° E
46°24′41.4″ N   10°03′02.6″ E