Weather in Spokane Valley in September
Spokane Valley, United States averages a high of 23.2°C (73.8°F) and low of 10.5°C (50.9°F) in September, with 4 rain days and 10.9 hours of daily sunshine. Travel score: 90.3/100 (Excellent). The best time to visit Spokane Valley is July.
High
23°C74°F
Low
11°C51°F
🌧️
4
rain days
☀️
10.9
hrs/day sunshine
💧
52%
humidity
90— Excellent
September in Spokane Valley is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Spokane Valley?
How much does it rain in Spokane Valley in September?
Spokane Valley receives an average of 22mm of rainfall across 4 rainy days in September. The annual total is 578mm.
What should I pack for Spokane Valley in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°C from day to night
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31