Average Seattle Temperature in September: A Comprehensive Guide
Seattle in September offers a delightful transition from summer to fall, characterized by mild temperatures and fewer rainy days compared to other months. The average high temperature hovers around 70°F (21°C), while the average low dips to approximately 52°F (11°C). This makes it an ideal time for outdoor activities and exploring the city without the intense heat of summer or the dampness of winter.
September Weather Overview
September in Seattle is generally considered one of the driest months of the year, though rain is still possible. You can expect an average of 2.2 inches of rainfall spread throughout the month. The days are still relatively long, with ample sunshine to enjoy the scenic beauty of the Pacific Northwest. The humidity is also lower than in the summer months, making for more comfortable conditions.
Daily Temperature Variations
The temperature range in September provides pleasant conditions for both day and night. During the day, you can comfortably wear light layers. Evenings can be cool, so a light jacket or sweater is recommended. While occasional heatwaves are possible, they are less frequent than in July or August. Keep in mind that microclimates exist within the Seattle area, so temperatures can vary slightly depending on location.
Activities to Enjoy in September
The agreeable weather makes September an excellent time to explore Seattle’s outdoor attractions. Popular options include hiking in the nearby mountains, visiting the city’s parks like Discovery Park and Gas Works Park, and taking boat tours of Puget Sound. You can also visit the Seattle climate, which offer beautiful foliage displays. September also marks the start of harvest season, offering opportunities to visit local farmers’ markets and enjoy fresh produce.
What to Pack for a September Trip to Seattle
Packing for Seattle in September requires a bit of versatility. Layering is key, allowing you to adjust your clothing based on the changing temperatures throughout the day. Essential items include:
- Light jacket or sweater
- Long-sleeved shirts
- T-shirts
- Jeans or comfortable pants
- Comfortable walking shoes
- A light rain jacket or umbrella (just in case!)
FAQs about Seattle Weather in September
What is the average rainfall in Seattle during September?
Seattle typically receives an average of 2.2 inches of rainfall in September.
Is September a good time to visit Seattle?
Yes, September is often considered one of the best months to visit Seattle due to its mild weather and fewer crowds compared to the summer.
What should I wear in Seattle in September?
Layers are recommended. Pack light jackets, long-sleeved shirts, and comfortable pants. Don’t forget a rain jacket or umbrella!
Are there any outdoor events in Seattle in September?
Yes, September hosts numerous outdoor events and festivals in Seattle. Check local listings for specific events during your visit.
How does September compare to other months in Seattle in terms of weather?
September offers a balance of mild temperatures, relatively low rainfall, and comfortable humidity, making it a more pleasant experience than the hotter summer months or the rainier fall and winter seasons.
Summary
Seattle’s September weather offers a comfortable and pleasant experience for visitors and locals alike. With average temperatures ranging from the low 50s to around 70°F and relatively low rainfall, it’s an ideal time to explore the city’s many outdoor attractions and enjoy the transition from summer to fall. Packing layers is key to adapting to the daily temperature fluctuations, ensuring a comfortable and enjoyable trip.
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