La Salle Weather in September

September in La Salle typically sees daytime highs of 13°C (55°F) and nighttime lows of 3°C (37°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in La Salle in September

Historically, September sees about 14 days of rain, with a monthly average of 99 mm (3.9 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in La Salle in September

Daytime highs in La Salle in September reach 13°C (55°F), with nights around 3°C (37°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in La Salle in September

With approximately 190 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.

For La Salle itself, August generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.