Wilsonville weather in September (Oregon, United States of America)

Thinking of visiting Wilsonville in September? Check the weather first! Here’s a detailed forecast of the month’s weather patterns.

Temperatures

The weather in Wilsonville during September is typically perfect, with high temperatures and moderate rainfall. Summer occurs in September. Throughout the day, temperatures typically settle at around 25°C. But by evening, they drop to around 11°C.

Precipitation

Wilsonville in September usually receives moderate rainfall, averaging around 40 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 8 days of the month will see rainfall.

Average sunshine

With around 236 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Wilsonville. May, June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, March, November and December tend to be characterized by conditions that may not be as optimal.

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

 

Wilsonville, monthly averages in September

Min Temperature 11°C  

Max Temperature 25°C  

Chance of Rain 27%  

Precipitation 40 mm  

Rainy days 8 days  

Humidity 69% *  

Sunshine 236 hours *  

Percentage Sunshine *  

Data from: Portland, the United States of America (34 KM, 21 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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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 this month?

For visitors traveling to Wilsonville, 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.

Swimming

10/10

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Wilsonville.

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