Sedro-Woolley
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Sedro-Woolley Weather in September

September is one of the excellent months to visit Sedro-Woolley, with daytime temperatures of 21°C (70°F) and lows of 10°C (50°F) at night. Do note that quite a bit of rainfall is typical, averaging around 84 mm (3.3 in).

Rainfall in Sedro-Woolley in September

Records from the past 30 years suggest around 12 days of rain, with 84 mm (3.3 in) average 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 Sedro-Woolley in September

The excellent temperature in Sedro-Woolley in September makes it a solid month to visit, with 21°C (70°F) during the day and 10°C (50°F) at night. During September, the summer season is in full swing. The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 10°C (50°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 Sedro-Woolley in September

The month experiences a moderate amount of sunlight, with 188 hours of sunshine. This provides a nice balance between sunshine and clouds.

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

Sedro-Woolley Temperature in September

Min Temperature
10°C (50°F)
Max Temperature
21°C (70°F)
Chance of Rain
41%
Precipitation
84 mm (3.3 in)
Rainy days
12 days
Sunshine
188 hours *
Percentage Sunshine
*
* Data from: Bellingham, the United States of America (33 KM, 20 Miles).

Sedro-Woolley Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Sedro-Woolley - and find the best time to visit.

Best Places in the United States of America in September

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

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Sedro-Woolley in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Sedro-Woolley in September

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

  • Swimming
    6/10
  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Sedro-Woolley 3-Day Forecast

More climate data for Sedro-Woolley

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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