Verdict: Good month
Lauterbrunnen Weather in September
September hits the sweet spot in Lauterbrunnen — highs around 19°C (66°F), ideal for a full day on foot. It's also the wet side of the calendar: rain falls on about 19 days, so build flexibility into plans. Overall, September is a solid month to visit Lauterbrunnen.
Average high
19°C / 66°F
Average low
12°C / 54°F
Rain days
~19
Precipitation
200 mm
What to pack for Lauterbrunnen in September
- Layers — t-shirts under a light jacket or sweater
- Rain gear is non-negotiable — expect rain on roughly 19 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Lauterbrunnen: Jul (23°C / 73°F) · Coolest: Jan (6°C / 43°F) · Wettest: May (~23 rain days)
6°
0°
Jan
9°
1°
Feb
10°
2°
Mar
13°
4°
Apr
16°
8°
May
21°
13°
Jun
23°
15°
Jul
23°
15°
Aug
19°
12°
Sep
17°
9°
Oct
11°
4°
Nov
7°
1°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)