Weather in Newmarket in September
Newmarket, Canada averages a high of 21.1°C (70°F) and low of 12.4°C (54.3°F) in September, with 9 rain days and 9.7 hours of daily sunshine. Travel score: 78.4/100 (Good). The best time to visit Newmarket is August.
High
21°C70°F
Low
12°C54°F
🌧️
9
rain days
☀️
9.7
hrs/day sunshine
💧
75%
humidity
78— Good
September in Newmarket is mild and occasionally wet — good for most activities.
What are the average temperatures in Newmarket?
How much does it rain in Newmarket in September?
Newmarket receives an average of 71.9mm of rainfall across 9 rainy days in September. The annual total is 827.4mm.
What should I pack for Newmarket 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
Traveling to Canada 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