San Clemente in September

Average high

29.9°C

Average low

16.3°C

Rainfall

—

— wet days

Comfort score

out of 100

September in San Clemente averages a daily high of 29.9°C with nights around 16.3°C. Comfortable conditions for being outdoors all day.

Across the year, the best time to visit San Clemente is October–June.

Based on BELL CANYON CALIFORNIA, CA US (12.9km), 1995–2024. 29 years of September data.