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

Looking to travel to Seaside in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In Seaside, September is characterized by pleasant temperatures and moderate rainfall. September is a summer month. Daytime temperatures hover around 21°C, while nights can cool down to about 10°C.

Seaside in September usually receives moderate rainfall, averaging around 81 mm for the month. When we look at the climate data from the last 30 years, we can expect around 11 days of rain.

The days are predominantly sunny, with an estimated total of around 236 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.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Seaside. July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, April, October, 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 Seaside climate page with graphs.

 

Seaside, monthly averages in September

Min Temperature 10°C  
Max Temperature 21°C  
Chance of Rain 36%  
Precipitation 81 mm  
Rainy days 11 days  
Sunshine 236 hours *  
Percentage Sunshine *  
* Data from: Astoria, the United States of America (22 KM, 14 Miles).

Where to go in the United States of America in September

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

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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 Seaside in September?

For visitors traveling to Seaside, 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
9/10
Walking
9/10
Barbeque
8/10
Camping
4/10
Outdoor sports
9/10

Interested in more climate information?

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

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 climate conditions. Find out where to go with our weather planner.