Saint-Léonard Weather in September

During September, Saint-Léonard experiences moderate daytime temperatures of 15°C (59°F) and cooler nights around 3°C (37°F). Expect quite a bit of rainfall. Around 123 mm (4.8 in) is typical.

Rainfall in Saint-Léonard in September

Climate statistics over the past 30 years suggest around 14 days of rain, with 123 mm (4.8 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 Saint-Léonard in September

In September, Saint-Léonard gets moderate temperatures, with highs of 15°C (59°F). Nights cool to around 3°C (37°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Saint-Léonard 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 Saint-Léonard 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 Saint-Léonard's climate page.

Saint-Léonard Temperature in September

Min Temperature 3°C (37°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 46%  

Precipitation 123 mm (4.8 in)  

Rainy days 14 days  

Humidity 71% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (7 KM, 4 Miles).

What to Wear in Saint-Léonard in September

Pack for changing conditions in Saint-Léonard in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Saint-Léonard 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 Saint-Léonard's climate page.

More climate data for Saint-Léonard

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Saint-Léonard climate overview or explore weather in Switzerland.