Weather: Jungfrau Marathon
Typical climate in September (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.
Typical climate for the race month — an estimate, not a forecast or a race-day record
14°C
Temperature
Range: 10°C – 19°C
80%
Humidity
High — increase hydration
32%
Rain Chance
Possible — check forecast
September
Typical race month
Usually on a Saturday
Conditions
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.
What to Wear
Singlet or short sleeve
Ideal racing temperatures
Hydration Strategy
Before the Race
Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.
During the Race
Drink at aid stations every 3-4km. Alternate water and sports drink.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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