When to go
The Best Time to Visit Interlaken
Month-by-month climate data for Interlaken, Switzerland — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Interlaken— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
June–September, December–March. Summer for hiking and lake swims; winter for skiing on Jungfrau and Eiger.
Warmest in Interlaken: Aug (25°C / 77°F) · Coolest: Jan (7°C / 45°F) · Wettest: May (~20 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Interlaken climate, month by month
January
7° / 2°C
~15 rain days
Tough
February
10° / 3°C
~13 rain days
Fair
March
12° / 3°C
~14 rain days
Fair
April
14° / 5°C
~15 rain days
Good
May
18° / 9°C
~20 rain days
Good
June
23° / 14°C
~18 rain days
Good
July
24° / 16°C
~17 rain days
Good
August
25° / 16°C
~14 rain days
Good
September
21° / 14°C
~15 rain days
Good
October
18° / 10°C
~14 rain days
Good
November
11° / 6°C
~14 rain days
Fair
December
8° / 2°C
~16 rain days
Tough
Plan around it
Dates locked in? Start from the Interlaken travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.