Ilwaco weather in September (Washington State, United States of America)

Wondering what the weather is like in Ilwaco during September? Curious if the timing is right for your trip? Our page offers an in-depth look at the monthly weather conditions.

Temperatures

The typical weather for September in Ilwaco includes pleasant temperatures and moderate rainfall. Summer occurs in September. Daytime temperatures generally peak at 18°C, but after sunset, they often decrease to around 10°C.

Precipitation

Ilwaco in September usually receives moderate rainfall, averaging around 75 mm for the month. Historically, approximately 12 days this month are expected to have rain.

Average sunshine

Expect sunny days throughout the month, with an estimated 236 hours of sunshine. Making it a pleasant time to visit Ilwaco.

If your ideal day consists of dry skies and moderate temperatures July generally stands out with the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

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

 

Ilwaco, monthly averages in September

Min Temperature 10°C  

Max Temperature 18°C  

Chance of Rain 40%  

Precipitation 75 mm  

Rainy days 12 days  

Sunshine 236 hours *  

Percentage Sunshine *  

Data from: Astoria, the United States of America (21 KM, 13 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 Ilwaco, 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.

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

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

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.