Weather in Saint John in September
Saint John, Canada averages a high of 18°C (64.4°F) and low of 12°C (53.6°F) in September, with 9 rain days and 8.7 hours of daily sunshine. Travel score: 70.1/100 (Good). The best time to visit Saint John is August.
High
18°C64°F
Low
12°C54°F
🌧️
9
rain days
☀️
8.7
hrs/day sunshine
💧
81%
humidity
70— Good
September in Saint John is mild and occasionally wet — good for most activities.
What are the average temperatures in Saint John?
How much does it rain in Saint John in September?
Saint John receives an average of 108.8mm of rainfall across 9 rainy days in September. The annual total is 1340.1mm.
What should I pack for Saint John in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 18°C
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🎉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