What to Wear in Interlaken in September
Your complete weather-based packing list derived from 30 years of historical climate data.
September Weather in Interlaken at a Glance
Avg High
19°C
Avg Low
11°C
Rain Risk
35%
💡 Quick Tip:
Light breathable clothing, t-shirts, light pants or shorts. Bring a light layer for evenings. Pack a compact umbrella or a light rain jacket just in case.
Weekly Packing Breakdown for Interlaken
Light breathable clothing, t-shirts, light pants or shorts.
Light breathable clothing, t-shirts, light pants or shorts.
Light breathable clothing, t-shirts, light pants or shorts.
Light jacket, hoodies, jeans.
Essential Packing List for Interlaken in September
Don't leave home without these essentials.
Top Layers
- ✓Long-sleeve shirts / Base layers
- ✓Light Cardigan / Hoodie
- ✓No coat needed
Bottoms & Shoes
- ✓Jeans / Heavy Trousers
- ✓Comfortable Walking Shoes
- ✓Socks (Cotton/Athletic)
Accessories
- ✓Scarf & Gloves
- ✓Compact Umbrella
Common Questions about Interlaken Weather in September
What is the weather like in Interlaken in September?
It is mild and pleasant with average highs of 19°C. Nights average around 11°C.
Do I need a heavy coat?
A medium-weight jacket or coat is recommended, especially for evenings.
Does it rain often in Interlaken in September?
There is a moderate chance of rain (35%). It's wise to be prepared.
What shoes should I take to Interlaken?
Comfortable walking shoes are the most important item. Since there is a chance of rain, water-resistant shoes or boots are recommended.
Can I wear shorts / short sleeves?
It might be possible on sunny afternoons, but long pants/jeans are safer.