Walnut Creek in August

Average high

28.4°C

Average low

13.8°C

Rainfall

—

— wet days

Comfort score

out of 100

August in Walnut Creek averages a daily high of 28.4°C with nights around 13.8°C. Comfortable conditions for being outdoors all day.

Across the year, the best time to visit Walnut Creek is April–October.

Based on BRIONES CALIFORNIA, CA US (6.3km), 1995–2024. 28 years of August data.