Weather in Kirkland in September
Kirkland, United States averages a high of 20.2°C (68.4°F) and low of 11.3°C (52.3°F) in September, with 9 rain days and 10 hours of daily sunshine. Travel score: 77/100 (Good). The best time to visit Kirkland is July.
High
20°C68°F
Low
11°C52°F
🌧️
9
rain days
☀️
10
hrs/day sunshine
💧
78%
humidity
77— Good
September in Kirkland is mild and occasionally wet — good for most activities.
What are the average temperatures in Kirkland?
How much does it rain in Kirkland in September?
Kirkland receives an average of 73.2mm of rainfall across 9 rainy days in September. The annual total is 1323.6mm.
What should I pack for Kirkland in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
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