Verdict: Excellent month
Bern Weather in September
September hits the sweet spot in Bern — highs around 20°C (68°F), ideal for a full day on foot. Expect showers on roughly 11 days of the month — rarely trip-ruining, worth planning around. Overall, September is one of the best months of the year to be in Bern.
Average high
20°C / 68°F
Average low
11°C / 52°F
Rain days
~11
Precipitation
101 mm
What to pack for Bern in September
- Layers — t-shirts under a light jacket or sweater
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Bern: Jul (24°C / 75°F) · Coolest: Jan (5°C / 41°F) · Wettest: May (~18 rain days)
5°
-2°
Jan
8°
0°
Feb
11°
1°
Mar
13°
3°
Apr
17°
8°
May
23°
13°
Jun
24°
14°
Jul
24°
14°
Aug
20°
11°
Sep
15°
7°
Oct
8°
1°
Nov
5°
-2°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)