Clackamas Weather in September

September in Clackamas brings high temperatures, with daytime highs of 25°C (77°F) and nights around 11°C (52°F). The perfect weather makes it a solid choice for a visit.

Rainfall in Clackamas in September

Historically, the month has about 8 days of rain, averaging 43 mm (1.7 in) in total. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Clackamas in September

September tends to be one of the perfect months in Clackamas, with 25°C (77°F) in the afternoon and 11°C (52°F) overnight. The month of September belongs to the summer season. This kind of day-to-night contrast is typical for this time of year. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Clackamas in September

The days are predominantly sunny, with an estimated total of around 236 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Clackamas in September

Average wind conditions reach 2 m/s (4 knots) in September. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Clackamas's climate page.

Clackamas Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 28%  

Precipitation 43 mm (1.7 in)  

Rainy days 8 days  

Humidity 69% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 236 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (21 KM, 13 Miles).

What to Wear in Clackamas in September

For Clackamas in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Clackamas in September

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Clackamas's climate page.

More climate data for Clackamas

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Clackamas climate overview or explore weather in the United States of America.