Lenk Weather in September
September in Lenk brings moderate temperatures, with highs of 15°C (59°F) and nights dropping to 4°C (39°F). Rainfall is on the higher side this month, averaging around 147 mm (5.8 in), so keep a rain jacket handy.
Rainfall in Lenk in September
On average, there are about 15 days with rain during this month, averaging 147 mm (5.8 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Lenk in September
In September, Lenk gets moderate temperatures, with highs of 15°C (59°F). Nights cool to around 4°C (39°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Lenk in September
With approximately 210 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.Our weather planner can help you find worldwide destinations with pleasant weather during this period. August and September typically offer the best weather for Lenk.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Lenk's climate page.
Lenk Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
15°C (59°F)
Chance of Rain
49%
Precipitation
147 mm (5.8 in)
Rainy days
15 days
Humidity
71% *
Sunshine
210 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lenk typically drop from around 19°C (66°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Lenk in September
Browse day-by-day weather records for Lenk spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lenk historical weather extremes in September
Based on weather observations in Lenk between 1976 and 2025, these are the recorded extremes during September.
- Lenk recorded its highest September temperature of 31°C (88°F) on September 14, 1987.
- The coldest September day was on September 25, 2002, with a maximum of 3°C (37°F).
- Lenk registered its coldest September night on September 29, 1995, with temperatures dropping to -13°C (9°F).
- The wettest day in September Lenk was on September 2, 2004 with 53 mm (2.1 in) of precipitation.
Best Places in Switzerland in September
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Lenk in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Lenk in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Lenk's climate page.
Temperature Rainfall Sunshine Humidity
See the full Lenk climate overview or explore weather in Switzerland.
