Weather forecast builder for the Vía Jacobi

Plan your walk with weather from 17 years of history—choose towns and dates below.

About weather on the Vía Jacobi

The Vía Jacobi crosses the Swiss Plateau from Konstanz to Genève, mostly below alpine elevations but touching pre‑Alpine ridges and sheltered forest lanes. Conditions are generally favorable in May, June, and September, with long daylight, open services, and broadly snow‑free low routes. Outside this window, weather varies markedly by region, with spring showers, summer heat and thunderstorms, and autumn’s cooler spells giving way to early winter snow and shorter days.

• Spring: Varied conditions across regions, with sunshine and frequent rain, occasional snow or freezing rain, muddy paths, and a steady warming trend.
• Summer: Long daylight and active services, with warm spells on exposed sections, recurring thunderstorms, and intermittent heavy showers alternating with brighter intervals.
• Autumn: Cooler air and clearer spells, harvest activity near Lake Geneva, periodic rain, first frosts on shaded sections, and occasional higher‑altitude snowfall developing.
• Winter: Short days and wintry mix dominate, with frequent rain or snow, icy shaded ridges, regional cold snaps, and reduced lodging or limited operating schedules.

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