Summerville Weather in September

September in Summerville brings high temperatures around 30°C (86°F) during the day, dropping to 19°C (66°F) at night, with quite a bit of rainfall expected, averaging around 136 mm (5.4 in) for the month.

Rainfall in Summerville in September

Historically, the month has about 11 days of rain, averaging 136 mm (5.4 in) in total. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Summerville in September

Summerville in September gets highs of 30°C (86°F) during the day and drops to 19°C (66°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 19°C (66°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 Summerville in September

The days are predominantly sunny, with an estimated total of around 221 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Should you favor a climate that's both dry and comfortably warm, March, April and November typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.