San Ramon climate

Typical historical weather for San Ramon, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for San Ramon.

Annual average

15°C

across all months

Warmest month

27.2°C

Aug average high

Coolest month

5.8°C

Dec average low

Annual rainfall

479mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

41.8°C

2 September 2017

Coldest day

-1.9°C

2 January 2022

Wettest day

77.5mm

31 December 2022

Windiest day

7.5m/s

4 February 2024