Overview
- The Eisheiligen, traditionally observed from May 11th to 15th, have shifted earlier in 2025, with frost already reported in April.
- This early frost has heightened risks for frost-sensitive plants, such as tomatoes, during a critical agricultural period.
- The German Weather Service (DWD) forecasts a reduced likelihood of frost in mid-May, especially in southern Germany, with probabilities now well below 50%.
- The Eisheiligen are rooted in folklore and Christian tradition, with names honoring saints Mamertus, Pancratius, Servatius, Bonifatius, and 'Kalte Sophie'.
- Climate change has disrupted traditional frost patterns, leading to variations like warm spells ('Schweißheiligen') in recent years.