Overview

• Deutscher Wetterdienst forecasts daytime highs of 38–39 °C and warm nights in many regions, triggering two-stage heat warnings in states such as Hessen.
• Public-health agencies recommend drinking 2.5–3 liters of fluids daily, reviewing medications that affect temperature regulation and avoiding strenuous activity during peak heat.
• Experts advise passive cooling measures—shading, timed ventilation and light clothing—and warn that fans are only effective up to about 35 °C, while split air-conditioning units offer stronger relief but carry high purchase and energy costs.
• The heat surge is disrupting outdoor work and stretching infrastructure, with rail, road and airport services under strain and employers adjusting schedules to protect laborers.
• State governments and the DWD are issuing targeted alerts via platforms like hessenWARN, emphasizing shaded rest breaks, evening ventilation and special care for the elderly, infants and chronically ill.