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Drought 3/5 considerable ALERTSWISS

Drought warning for canton St.Gallen: level 3/5

Content updated on 05.08.2026 20:32 CEST last verified 18:13 CEST

Summary

The entire canton of St.Gallen is under a drought warning at level 3 of 5. Persistently low rainfall is straining water resources and agriculture across the whole cantonal area.

What hazard threatens

Prolonged drought lowers groundwater and spring levels, endangers the drinking-water supply of smaller municipalities and agriculture, and markedly increases the risk of forest and field fires.

Local weather conditions

Measuring station Ebnat-Kappel, 623 m a.s.l. — reference station for the canton

Daily maximum

33.8 °C

on the day of the warning

Precipitation, 30 days before the warning

34 mm

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

3

Precipitation, day of warning and following day

8.3 mm

Day of warning and following days

  • Tue 04.08. 34° 16° measured
  • Wed 05.08. 25° 17°
  • Thu 06.08. 22° 17°

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

Source: MeteoSwiss

Forecast: MET Norway, licence CC BY 4.0

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 of occurrence is very low, the potential impact medium. Use drinking water sparingly, observe municipal water-use restrictions and fire bans, and avoid open fires outdoors and barbecuing in the forest at elevated levels.

What to do now

Keep a drinking-water reserve on hand, check for current fire and water-use restrictions in your municipality, and follow the guidance of the relevant authorities.

Risk matrix

Affected area

The warning applies to the entire canton.