Nendaz Weather in September

During September, Nendaz experiences moderate daytime temperatures of 15°C (59°F) and cooler nights around 3°C (37°F). Expect quite a bit of rainfall. Around 126 mm (5 in) is typical.

Rainfall in Nendaz in September

Records from the past 30 years suggest around 14 days of rain, with 126 mm (5 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Nendaz in September

Daytime highs in Nendaz in September reach 15°C (59°F), with nights around 3°C (37°F). Conditions are often most pleasant around the middle of the day. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Nendaz 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 Nendaz 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.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer 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.

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For a detailed overview over the year and the best time to visit Switzerland, check out our Nendaz's climate page.

Nendaz Temperature in September

Min Temperature 3°C (37°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 47%  

Precipitation 126 mm (5 in)  

Rainy days 14 days  

Humidity 71% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (4 KM, 2 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Nendaz typically drop from around 23°C (73°F) at the start of September to approximately 19°C (66°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

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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

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Historical weather for Nendaz in September

Browse day-by-day weather records for Nendaz spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Nendaz historical weather extremes in September

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Nendaz.

• Nendaz recorded its highest September temperature of 34°C (93°F) on September 5, 2023.
• The lowest daytime temperature in September was 9°C (48°F), recorded on September 22, 1979.
• Nighttime temperatures dropped to -12°C (10°F) on September 29, 1995, marking the coldest September night on record.
• The heaviest September precipitation occurred on September 13, 1997, when 36 mm (1.4 in) of precipitation fell.

What to Wear in Nendaz in September

The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Nendaz in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Nendaz's climate page.

More climate data for Nendaz

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Nendaz climate overview or explore weather in Switzerland.