Weather in Hamilton in September
Hamilton, United States averages a high of 25.4°C (77.7°F) and low of 15.9°C (60.6°F) in September, with 8 rain days and 9.8 hours of daily sunshine. Travel score: 87.6/100 (Excellent). The best time to visit Hamilton is September.
High
25°C78°F
Low
16°C61°F
🌧️
8
rain days
☀️
9.8
hrs/day sunshine
💧
68%
humidity
88— Excellent
September in Hamilton is warm and mostly dry — excellent conditions for exploring.
What are the average temperatures in Hamilton?
How much does it rain in Hamilton in September?
Hamilton receives an average of 66.3mm of rainfall across 8 rainy days in September. The annual total is 1064mm.
What should I pack for Hamilton in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
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