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Weather in September in Oregon

Planning a getaway to Oregon this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Oregon in September?

Oregon is a region in the United States of America. The weather in Oregon in September can be quite varied, with temperatures that range from mild to warm and precipitation levels ranging from low to high. During September, summer is in full swing.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is mild in Newport at 18°C to warm in Central Point at 29°C. Nighttime temperatures generally drop to 10°C in Central Point and 10°C in Newport.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Klamath Falls with an average of 8 mm to high rainfall in Rockaway Beach with 105 mm.

Average sunshine

The days are mostly sunny, with an average total of around 236 hours of sunshine in Portland. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For specific regional insights in Oregon for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Oregon climate page.

Where to go in Oregon in September

Find more information for the most popular destinations in the Oregon on the map below. Click on a destination dot for more detailes.

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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).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Oregon?

Portland

In September Portland generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 12°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Portland
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
14°C 
298 hours 
11 mm 
3 days 
24°C 
12°C 
236 hours 
41 mm 
8 days 
October   >> October
>>  
18°C 
8°C 
152 hours 
86 mm 
14 days 
Climate in Portland

Seaside

In September Seaside generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Seaside
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
12°C 
299 hours 
33 mm 
9 days 
21°C 
10°C 
236 hours 
81 mm 
11 days 
October   >> October
>>  
16°C 
7°C 
149 hours 
189 mm 
19 days 
poor 
Climate in Seaside

Cannon Beach

In September Cannon Beach generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Cannon Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
12°C 
299 hours 
37 mm 
9 days 
21°C 
10°C 
236 hours 
93 mm 
11 days 
October   >> October
>>  
16°C 
8°C 
149 hours 
212 mm 
19 days 
poor 
Climate in Cannon Beach

Depoe Bay

In September Depoe Bay generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Depoe Bay
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
20°C 
11°C 
22 mm 
7 days 
19°C 
9°C 
62 mm 
9 days 
October   >> October
>>  
17°C 
8°C 
162 mm 
18 days 
Climate in Depoe Bay

Rockaway Beach

In September Rockaway Beach generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are pleasant that month.

Rockaway Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
11°C 
299 hours 
32 mm 
9 days 
21°C 
10°C 
236 hours 
105 mm 
12 days 
October   >> October
>>  
15°C 
7°C 
149 hours 
252 mm 
20 days 
poor 
Climate in Rockaway Beach

Is your destination not in the list? Have a look at other destinations in Oregon, in the United States of America.

Is September the best time to visit Oregon?

We believe that September is one of the best times to visit Oregon with overall perfect weather in Portland. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Oregon is in May, June, July, August and September with generally perfect weather in Portland. In contrast, January, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Oregon. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed 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.