Weather: Interlaken — May

May is typically wet for visiting Interlaken, with average highs of 18°C and around 19 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.

Nights in Interlaken during May are cool at around 9°C. Bring a jacket or sweater for evenings, especially if you plan to dine outdoors or take evening walks. The temperature drop from day to night can be noticeable.

With highs of 18°C and lows of 9°C in May, we recommend: Warm layer for evenings, Compact umbrella, Waterproof jacket/shell, Water-resistant shoes. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.

Interlaken typically sees around 19 rainy days in May. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.

In May, Interlaken gets approximately 15 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.

No, May is not peak season in Interlaken. Expect better value on accommodation, shorter queues at attractions, and fewer tourists at popular spots. This is an excellent time to experience the city like a local and enjoy a more authentic atmosphere.