Chassieu Weather in September

September in Chassieu averages 24°C (75°F) during the day and 13°C (55°F) at night. Quite a bit of rainfall is typical this month, with around 100 mm (3.9 in) on average. An umbrella is a good idea.

Rainfall in Chassieu in September

Looking at the last 30 years, the data shows about 10 days with rain, averaging 100 mm (3.9 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Chassieu in September

Chassieu in September gets highs of 24°C (75°F) during the day and drops to 13°C (55°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Chassieu in September

Enjoy a sunny month with about 195 hours of sunshine, the clear skies make Chassieu even more beautiful.

If you prefer dry days with pleasant temperatures, May, June, July and August typically offer 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.