Weather in Halton Hills in September
Halton Hills, Canada averages a high of 21.3°C (70.3°F) and low of 12.9°C (55.2°F) in September, with 9 rain days and 9.6 hours of daily sunshine. Travel score: 78.8/100 (Good). The best time to visit Halton Hills is August.
High
21°C70°F
Low
13°C55°F
🌧️
9
rain days
☀️
9.6
hrs/day sunshine
💧
74%
humidity
79— Good
September in Halton Hills is mild and occasionally wet — good for most activities.
What are the average temperatures in Halton Hills?
How much does it rain in Halton Hills in September?
Halton Hills receives an average of 70.4mm of rainfall across 9 rainy days in September. The annual total is 840.4mm.
What should I pack for Halton Hills in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°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
🎉Visiting Canada in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31