Sequim Weather in September

Sequim in September averages 20°C (68°F) during the day and 9°C (48°F) at night. This is part of the summer season. Some rainfall is to be expected.

Rainfall in Sequim in September

The climate data from previous years indicates about 10 days of rain, averaging 31 mm (1.2 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Sequim in September

September is a good time to be in Sequim. Days are perfect, reaching 20°C (68°F), with nights around 9°C (48°F). September is part of the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Sequim in September

Enjoy a sunny month with about 204 hours of sunshine, the clear skies make Sequim even more beautiful.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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• January
• February
• March
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• May
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• July
• August

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• October
• November
• December

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

Sequim Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 34%  

Precipitation 31 mm (1.2 in)  

Rainy days 10 days  

Humidity 60% *  

Sunshine 204 hours *  

Percentage Sunshine 54% *  

* Data from: Victoria, Canada (42 KM, 26 Miles).

What to Wear in Sequim in September

For Sequim 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. Some rain is possible, so pack something to handle light showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Sequim in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

5/10

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 Sequim's climate page.

More climate data for Sequim

Temperature Rainfall Sunshine Humidity

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