Weather in Gilroy in September
Gilroy, United States averages a high of 26.6°C (79.9°F) and low of 14.3°C (57.7°F) in September, with 0 rain days and 11.6 hours of daily sunshine. Travel score: 96.9/100 (Excellent). The best time to visit Gilroy is July.
High
27°C80°F
Low
14°C58°F
🌧️
0
rain days
☀️
11.6
hrs/day sunshine
💧
68%
humidity
97— Excellent
September in Gilroy is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Gilroy?
How much does it rain in Gilroy in September?
Gilroy receives an average of 2.2mm of rainfall across 0 rainy days in September. The annual total is 438.2mm.
What should I pack for Gilroy in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 12°C from day to night
🎉Visiting United States in September?
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Data based on 1994–2024 averages · Last updated: 2024-12-31