Mont-Saint-Jean Weather in September

September in Mont-Saint-Jean averages 21°C (70°F) during the day and 11°C (52°F) at night. Quite a bit of rainfall is typical this month, with around 75 mm (3 in) on average. An umbrella is a good idea.

Rainfall in Mont-Saint-Jean in September

You can expect rain on around 12 days based on historical patterns, with 75 mm (3 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Mont-Saint-Jean in September

September in Mont-Saint-Jean is generally excellent, with days reaching 21°C (70°F) and nights settling around 11°C (52°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Mont-Saint-Jean in September

You can expect a moderate amount of sunlight, with approximately 189 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Mont-Saint-Jean.