August’s sunrise at 6:15 AM and temperatures of 17–25°C (63–77°F) mean summer is still in full swing. Swiss National Day on August 1 brings fireworks, bonfires, and lantern processions. The Trucker & Country Festival and Ballenberg’s summer events add to the festive mood. Mountain trains, lake cruises, and adventure sports are all running. Crowds remain high, especially around National Day, so book ahead for accommodation and activities. Evenings are warm and perfect for outdoor dining or a stroll along the lakes.
Pro tips for visiting Interlaken in August
• Book accommodation and lake cruises at least a month ahead for Swiss National Day—rooms and tickets sell out quickly. • Go early to Höhematte for the best views of National Day fireworks and bonfires—arrive by late afternoon to claim a spot. • Reserve adventure activities 2–3 days in advance—paragliding and rafting are in high demand. • Head to Ballenberg on weekdays for summer events—weekends are busiest with families and tour groups. • Avoid driving in town during festivals—streets close for parades and parking is limited. • Choose early morning for mountain excursions—afternoon storms can disrupt plans. • Pack for both sun and rain—weather is changeable even in high summer. • Visit local bakeries for Zwetschgenwähe (plum tart) and fresh berries in season.
What to eat in Interlaken in August: Seasonal delicacies
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Zwetschgenwähe [plum tart]
Damson plum tart arrives August to September, buy from bakeries, eat mid-morning, pair with coffee.
