Trois-Rivières Weather in September

September in Trois-Rivières averages 29°C (84°F) during the day and 26°C (79°F) at night. It is the wettest month of the year, with 135 mm (5.3 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Trois-Rivières in September

With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Analyzing past climate data, one can expect approximately 21 days of rain, averaging 135 mm (5.3 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Trois-Rivières in September

September in Trois-Rivières sees highs of 29°C (84°F) and lows of 26°C (79°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.

Sunshine in Trois-Rivières in September

The days are predominantly sunny, with an estimated total of around 218 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Trois-Rivières. Our weather planner can help you explore destinations with more pleasant weather conditions.