Soča Valley in June: trail running, rivers and an outdoor festival
In late June, Tolmin becomes a gathering place for trail runners, hikers and outdoor enthusiasts during the Soča Outdoor Festival, from 26 to 28 June 2026.
By coolcation editorial team · Published on
WHY NOW
The entire valley becomes an outdoor playground.
The Soča Outdoor Festival takes place in Tolmin from 26 to 28 June 2026. Trail runs ranging from short distances to 50 kilometres, hiking activities and an extensive supporting programme use the landscape around the Soča and Tolminka rivers as a natural stage.
Why late June?
June brings long days and generally good conditions for active travel. The valley can already become warm, though, which makes early starts and higher-altitude routes particularly sensible.
Outdoor Festival, 26–28 June
The programme combines running competitions, hikes, evening events and activities around Tolmin. Even if you are not competing, the town feels especially lively during the festival.
More than the festival itself
Bovec, Kobarid, Trenta and the Soča gorges make excellent additions. But do not turn every day into a long hike – the water, gorges and short walks are just as much part of the region's appeal.
Book accommodation early for the competition weekend.
Check current thunderstorm forecasts and river conditions.
Start hiking days early.
CLIMATE AT A GLANCE
June in Soča Valley & Tolmin
Climate, travel atmosphere and activities for the period covered.
June
Excellent
Long days for nature and water-based outings, with thunderstorms worth watching for.
Visitor numbersModerate
Seasonal price levelMid-range
Daytime average26.3 °CDaily maximum
Night-time average15 °CDaily minimum
Rainfall126.1 mmper month
WaterColdeditorial assessment
Heat riskModeratequalitative assessment
Humidity discomfortElevatedqualitative assessment
Sea & coast0/5
Mountains & lakes5/5
Nature5/5
Cities & culture3/5
Long-term monthly climate averages for the stated reference location. Altitude, coastal exposure and local microclimates can lead to different conditions. This is not a weather forecast. Sources & context
PLAN YOUR TRIP
More about Soča Valley & Tolmin.
Find every travel season, favourite places and practical advice in the detailed guide.