Weather · January
San Ramon weather in January
Average highs of 57°F, lows of 38°F and 2.8 in of rain, from 30 years of weather records.
January is San Ramon’s coldest month, with average highs of 57°F and lows of 38°F. That is about the same as December, and 15° below the yearly average high.
- Average high
- 57°F
- Average low
- 38°F
- Precipitation
- 2.8 in
- Wet days
- 10
- Sunrise · sunset
- 7:21 AM · 5:11 PM
What to wear in January
- Cool days: a warm jacket and long pants, plus layers for the swing between morning and afternoon.
What January weather is good for
January compared with the months around it
Planning a trip? See the best time to visit San Ramon and today’s forecast.
Questions
How hot does it get in San Ramon in January?
Average highs are 57°F and average lows 38°F, for a daily mean of 48°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in San Ramon in January?
January averages 2.8 in of precipitation over about 10 days with at least 0.01 in. It is the 2nd wettest month of the year.
What time is sunset in San Ramon in January?
Around mid-January the sun rises about 7:21 AM and sets about 5:11 PM, for roughly 9.8 hours of daylight.
Is January a good time to visit San Ramon?
The mildest months for visiting are May, June, October. January is cool.
NOAA U.S. Climate Normals 1991–2020, Livermore Muni Ap station (7.9 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.