Silesia Marathon
Race Day Weather
Cool start — fast day potential, warming through the race
A cool 49°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 61°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 80% is worth noting for effort level, especially in later miles.
Pace Calculator
Get forecast alerts for Silesia Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Silesia Marathon race plan
True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
The Silesia Marathon starts and finishes on the track at Silesian Stadium in Chorzów, Poland, with the route running through four cities of the Upper Silesian metropolitan area: Chorzów, Katowice, Mysłowice and Siemianowice Śląskie. Founded in 2009, it holds full AIMS membership and is one of Poland's largest marathons, drawing several thousand finishers across the marathon, half marathon and 50K ultramarathon each October. Starting in 2026 the race expands into a three-day running festival, adding a Friday 5K and Saturday 10K ahead of the Sunday marathon, half marathon and ultramarathon.
