September · Switzerland
Best time to visit Bern in September Weather, crowds & prices
Weather in Bern in September
Average temperature 15°C, 134 mm of rain, about 13 days with 6+ hours of sunshine and 76% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.8/10
Ranked #5 of 12 months
- Avg temp
- 15°C
- Rainfall
- 134 mm
- Humidity
- 76%
- Days with 6h+ sun
- 13
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Bern scores 6.8/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 15°C, 134 mm of rain, and roughly 13 days with 6+ hours of sunshine this month.
Bern's arcaded old town loops around the Aare river, with a clock tower, bears and Switzerland's capital status.
September in Bern — middling scores, decent value
Temperatures hover around 15°C (59°F) — the kind of month where neither heat nor cold forces the schedule.
134 mm of rain signals a properly wet month, with only about 13 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.8/10 on the same scale — 5th of 12 months, versus 8.3/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Bern — 1.5 points higher on the same scale.
Frequently asked
- What is the weather like in Bern in September?
- In September, Bern averages 15°C, 134 mm of rain, and about 13 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is September a good time to visit Bern?
- September earns a 6.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Bern in September?
- Expect about 134 mm of rain in September. Average humidity is 76% and there are about 13 days with 6+ hours of sunshine.
Curated in Bern
Tickets & experiences
Things to do in Bern
Bern, Switzerland. Live activities and tours from GetYourGuide, matched to this destination.