Lynnwood Weather in September

September in Lynnwood sees daytime temperatures around 21°C (70°F) and lows of 11°C (52°F) at night. The perfect weather makes it a good time to visit.

Rainfall in Lynnwood in September

The climate data from previous years indicates about 10 days of rain, averaging 51 mm (2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Lynnwood in September

Weather in Lynnwood is at its perfect in September. Highs reach 21°C (70°F), while nights settle around 11°C (52°F). This month falls in the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. 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 Lynnwood in September

With approximately 220 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

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

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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 Lynnwood's climate page.

Lynnwood Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 34%  

Precipitation 51 mm (2 in)  

Rainy days 10 days  

Humidity 73% *  

Sunshine 220 hours *  

Percentage Sunshine 59% *  

* Data from: Seattle, the United States of America (42 KM, 26 Miles).

What to Wear in Lynnwood in September

For Lynnwood 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Lynnwood 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

8/10

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 Lynnwood's climate page.

More climate data for Lynnwood

Temperature Rainfall Sunshine Humidity

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