Weather in Интерлакен by month: what to expect

Интерлакен sits in the heart of the Swiss Alps, where the weather shifts gently with the seasons. From December to February, the town is wrapped in winter’s quiet charm, with crisp air and occasional snowfall. By March, the days grow longer, though the mountains still hold their chill. June through August bring the warmest months, when the valleys turn lush and green, perfect for hiking or lakeside strolls.

Spring and autumn in Интерлакен are brief but striking. April and May see temperatures rise steadily, while September and October offer a golden transition, with cooler air and fewer crowds. Rain is spread throughout the year, but the heaviest showers tend to arrive in late spring and early summer. Even in the wettest months, the rain rarely lingers all day, leaving plenty of time to explore.

Temperatures in Интерлакен follow a clear seasonal rhythm. In January, the coldest month, averages hover around +3.9 °C, with nights dipping close to 0 °C. By July, the warmest month, daytime highs reach +24.4 °C, though evenings remain cool at around +15.9 °C. The contrast between winter and summer is noticeable, but the alpine setting keeps extremes in check.

Spring arrives gradually in Интерлакен. In March, the mercury climbs to +7.7 °C, while May sees a jump to +13.5 °C, making it one of the most pleasant times to visit. Autumn cools just as steadily: September still feels like summer at +16.9 °C, but by November, temperatures drop to +7.4 °C, signaling the return of winter’s crispness.

Rain and snow are part of life in Интерлакен, but the pattern isn’t uniform. The wettest months—May and July—see around 215 mm and 200 mm of precipitation, often in the form of afternoon showers. February is the driest, with just 61 mm, though snow can still dust the streets and surrounding peaks.

Winter in Интерлакен brings lighter but more frequent precipitation. December and January average 140 mm and 129 mm, mostly as snow or sleet. By April, the rain picks up, peaking in May before easing slightly in June. Even in the rainiest months, the showers are usually short-lived, leaving room for sunshine between clouds.

What to pack for Интерлакен depends on when you visit. From November to March, warm layers are essential: a waterproof jacket, thermal base layers, and sturdy shoes for snow or slush. Even in April or October, a light sweater and scarf will come in handy for chilly mornings or alpine breezes.

Summer in Интерлакен calls for lighter clothing, but don’t forget a light rain jacket for sudden showers. From June to August, temperatures can reach +25 °C, so breathable fabrics and comfortable walking shoes are ideal. A hat and sunscreen are useful year-round, as the alpine sun can be strong even on cooler days.