Weather · January
San Luis Obispo weather in January
Average highs of 65°F, lows of 41°F and 3.9 in of rain, from 30 years of weather records.
January is San Luis Obispo’s 11th warmest month, with average highs of 65°F and lows of 41°F. That is about the same as December, and 7° below the yearly average high.
- Average high
- 65°F
- Average low
- 41°F
- Precipitation
- 3.9 in
- Wet days
- 8
- Sunrise · sunset
- 7:10 AM · 5:12 PM
What to wear in January
- Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
- Pack an umbrella or rain jacket: rain or snow falls on about 8 days this month.
What January weather is good for
January compared with the months around it
Planning a trip? See the best time to visit San Luis Obispo and today’s forecast.
Questions
How hot does it get in San Luis Obispo in January?
Average highs are 65°F and average lows 41°F, for a daily mean of 53°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in San Luis Obispo in January?
January averages 3.9 in of precipitation over about 8 days with at least 0.01 in. It is the wettest month of the year.
What time is sunset in San Luis Obispo in January?
Around mid-January the sun rises about 7:10 AM and sets about 5:12 PM, for roughly 10.0 hours of daylight.
Is January a good time to visit San Luis Obispo?
The mildest months for visiting are June, August, September. January is mild.
NOAA U.S. Climate Normals 1991–2020, San Luis Obispo Ap station (2.8 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.