Walnut Creek in May

Average high

21.9°C

Average low

9.5°C

Rainfall

—

— wet days

Comfort score

out of 100

May in Walnut Creek averages a daily high of 21.9°C with nights around 9.5°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. 29 years of May data.