Monthly climate guide
Lauterbrunnen weather in September
With highs near 13°C (56°F) and lows around 4°C (40°F), September feels cool in Lauterbrunnen. Rainfall averages about 105 mm (wet) and the sky is often cloudy. Daytime highs are 4°C cooler than August and 5°C warmer than October.
What stands out in September
- Seasonally, September counts as early autumn in Lauterbrunnen.
- It cools down fast from here: October is about 5°C cooler.
- Skies are at their clearest this time of year.
- Just 50 km apart, but Lauterbrunnen runs about 6°C cooler than Bern this month.
Avg high
13°C
56°F
Avg low
4°C
40°F
Rainfall
105 mm
wet
Humidity
81%
relative
Sky
58%
cloud · often cloudy
Lauterbrunnen weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -3°C / 26°F | -11°C / 12°F | 88 mm | 88% | 77% |
| February | -3°C / 27°F | -11°C / 11°F | 70 mm | 87% | 73% |
| March | 0°C / 33°F | -7°C / 19°F | 81 mm | 87% | 66% |
| April | 5°C / 42°F | -2°C / 28°F | 107 mm | 83% | 67% |
| May | 10°C / 50°F | 1°C / 34°F | 153 mm | 81% | 71% |
| June | 15°C / 58°F | 6°C / 43°F | 159 mm | 79% | 66% |
| July | 17°C / 62°F | 8°C / 46°F | 145 mm | 77% | 58% |
| August | 17°C / 62°F | 8°C / 46°F | 156 mm | 78% | 56% |
| September | 13°C / 56°F | 4°C / 40°F | 105 mm | 81% | 58% |
| October | 8°C / 47°F | 0°C / 33°F | 125 mm | 84% | 66% |
| November | 2°C / 36°F | -4°C / 24°F | 114 mm | 87% | 73% |
| December | -2°C / 29°F | -9°C / 16°F | 97 mm | 84% | 74% |
What to pack for September
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Lauterbrunnen?
Compare the months in the chart above to find your ideal window.
Best time to visit Lauterbrunnen →Other Switzerland cities in September
Cite or embed this data
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Lauterbrunnen weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/switzerland/lauterbrunnen/september
<a href="https://weathercompare.eu/weather/switzerland/lauterbrunnen/september">Lauterbrunnen weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/switzerland/lauterbrunnen" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Lauterbrunnen weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/switzerland/lauterbrunnen/september">Lauterbrunnen weather in September</a> – WeatherCompare</p>
Lauterbrunnen in September: quick answers
Is September a good time to visit Lauterbrunnen?
Yes. September is one of the best months for Lauterbrunnen, with highs around 13°C and about 105 mm of rain.
How warm is Lauterbrunnen in September?
Average highs are about 13°C (56°F) and average lows about 4°C (40°F), based on 10 years of daily data.
Does it rain a lot in Lauterbrunnen in September?
Lauterbrunnen typically gets around 105 mm of rain in September — wet.
Figures are long-term averages for the area around Lauterbrunnen (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.