La Tzoumaz Weather in September
In La Tzoumaz, September brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 3°C (37°F). Expect quite a bit of rainfall this month.
Rainfall in La Tzoumaz in September
Records from the past 30 years suggest around 14 days of rain, with 125 mm (4.9 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in La Tzoumaz in September
September in La Tzoumaz sees highs of 14°C (57°F) and lows of 3°C (37°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in La Tzoumaz in September
Expect a lot of sunshine this month, with about 210 hours of sun. These sunny conditions help offset the cool temperatures, making it a pleasant month to explore outdoors.
Wind Speed in La Tzoumaz in September
Average wind conditions reach 2 m/s (4 knots) in September. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.For La Tzoumaz itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 La Tzoumaz's climate page.
La Tzoumaz Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
47%
Precipitation
125 mm (4.9 in)
Rainy days
14 days
Humidity
71% *
Windspeed
2 m/s (4 knots) *
Sunshine
210 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in La Tzoumaz typically drop from around 21°C (70°F) at the start of September to approximately 18°C (64°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°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 La Tzoumaz in September
Browse day-by-day weather records for La Tzoumaz spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La Tzoumaz historical weather extremes in September
Based on 49 years of weather observations in La Tzoumaz between 1976 and 2025, these are the recorded extremes.
- La Tzoumaz recorded its highest September temperature of 34°C (93°F) on September 5, 2023.
- La Tzoumaz experienced its chilliest September day on September 25, 2002, reaching only 8°C (46°F).
- The lowest overnight temperature recorded in September was -12°C (10°F) (September 29, 1995).
- Peak precipitation in September occurred on September 13, 1997, when 35 mm (1.4 in) of precipitation was measured.
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
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tolerable
unpleasant
poor
What to Wear in La Tzoumaz 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 La Tzoumaz 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 La Tzoumaz's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full La Tzoumaz climate overview or explore weather in Switzerland.
