The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
Davos in September sees moderate daytime temperatures of 13°C (55°F) and nighttime lows of 2°C (36°F). Rainfall is fairly high this month at around 129 mm (5.1 in), so pack a rain jacket to stay dry.
September in Davos can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Davos - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Davos typically stay consistent throughout September, with daily highs averaging around 13°C (55°F). Nights are cold, with lows typically ranging from 3°C (37°F) to 6°C (43°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Davos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Davos between 1976 and 2026, these are the recorded extremes during 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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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. Sunglasses could come in handy during the sunnier parts of your trip.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Davos climate overview or explore weather in Switzerland.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
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