Ollon weather in September (Vaud, Switzerland)

Curious about the September weather in Ollon? This guide provides all the details you need.

In September, Ollon generally has moderate temperatures and high rainfall. Throughout the day, temperatures typically settle at around 17°C. But by evening, they drop to around 6°C.

Ollon in September usually receives high rainfall, averaging around 147 mm for the month. Rain is expected on roughly 13 days.

The days are predominantly sunny, with an estimated total of around 210 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

In case you lean more towards enjoying temperate temperatures and rain-free days August typically offers the most optimal weather. In contrast, January, February, March, April, May, June, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Ollon climate page with graphs.

 

Ollon, monthly averages in September

Min TemperatureMin Temperature 6°C  
Max TemperatureMax Temperature 17°C  
Chance of RainChance of Rain 44%  
PrecipitationPrecipitation 147 mm  
Rainy daysRainy days 13 days  
HumidityHumidity 71% *  
SunshineSunshine 210 hours *  
Percentage SunshinePercentage Sunshine 65% *  
* Data from: Sion, Switzerland (27 KM, 17 Miles).

Where to go in Switzerland in September

Find out more about the weather in Switzerland in September and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Ollon in September?

For visitors traveling to Ollon, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Ollon.

Our site offers climate and forecast data for every country in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.