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2026 Jungfrau Marathon - Sep 5 Countdown
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Race Information
| Race | 2026 Jungfrau Marathon - Sep 5 |
|---|---|
| City | Interlaken |
| Date | 2026-09-05 at 08:30 |
| Field Size | ~4,000 runners |
| Time Limit | 6 hours 30 min |
| Timezone | Europe/Zurich |
| Official Site | Jungfrau-Marathon AG |
| Registration | Register · 250 CHF |
Race Day Weather
| Average Temperature | 12°C / 54°F |
|---|---|
| Humidity | 70% |
| Wind | 8 km/h |
| Rain Chance | 30% |
| Typical Conditions | Cool alpine September with possible afternoon showers above 2000m |
What to Prepare: Start temperature in Interlaken (~12°C) climbs and then drops sharply as you ascend to the 2320m Eigergletscher finish. Pack a light shell for the final 12km. Hydration matters more than fueling — dry alpine air dehydrates fast.
Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.
Wind Impact on Race Day
Wind at 8 km/h can affect your marathon pace by 5-15 seconds per kilometer. Headwinds slow you down exponentially — a 20 km/h wind costs more than twice a 10 km/h wind.
Calculate your wind-adjusted pace →Course Profile
| Course Type | Mountain point-to-point |
|---|---|
| Elevation Gain | 1953m |
| Terrain | Mixed road, trail, alpine path |
| Profile | Start in Interlaken (568m) along Lake Brienz, climb through Lauterbrunnen, Wengen, and the Lauberhorn slopes to finish at Eigergletscher station (2,320m). Total elevation gain: 1,953m — the largest of any mass-participation marathon in Europe. First 10km flat, gentle rise to Lauterbrunnen at km 20, then the brutal sustained climb begins — 1,043m of vertical in the final ~22km. Open entry but sells out annually — ~4,000 entries snapped up across 50+ countries each year (~3,500-3,700 typical finishers). Men's course record: Jonathan Wyatt 2:49:01 (NZL, 2003). Women's: Maude Mathys 3:12:56 (SUI, 2017). |
Prepare for 2026 Jungfrau Marathon - Sep 5
Use our free training tools to get race-ready:
Free Pace Band Generator — Printable Race Day Wristband
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Use Calculator →Grade Adjusted Pace (GAP) Calculator — Hills & Strava
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Use Calculator →Marathon Predictor — 5K, 10K & Half Marathon Race Predictor
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