Course & Elevation
The Jungfrau Marathon is a mountain marathon in the Bernese Oberland, held on a Saturday in early or mid-September and organised by the Verein Jungfrau-Marathon. It starts at 8:30 on the Höheweg in Interlaken, between the Grand Hotel Victoria-Jungfrau and the Höhematte, and finishes at the Eigergletscher station at 2,320 m beneath the Eiger, Mönch and Jungfrau. The distance is the full 42.195 km and the climb is 1,953 m. After a 3.3 km opening loop through Interlaken, the flat first 10 km run via Bönigen to Wilderswil, where the climbing begins; the route then continues through Gsteigwiler and Zweilütschinen. The first edition was held on 25 September 1993 and took place in snow, with about 1,500 starters. The finish was originally at Kleine Scheidegg and has been at the Eigergletscher station since 2022, which adds some climbing. The organisers say participants travel free by rail within Switzerland, and around half of the field comes from Switzerland and the rest from 60 other countries.
Course Facts
Weather
Typical climate for the race month — an estimate, not a forecast or a race-day record
14°C
Temperature
80%
Humidity
32%
Rain Chance
September in Interlaken is mild, with highs averaging about 19°C and lows about 10°C, and rain on around ten days of the month. The finish is at 2,320 m, much higher and colder than the start at about 570 m.
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