Weather · January
San Diego weather in January
Average highs of 67°F, lows of 46°F and 2.3 in of rain, from 30 years of weather records.
January is San Diego’s 10th warmest month, with average highs of 67°F and lows of 46°F. That is about the same as December, and 6° below the yearly average high.
- Average high
- 67°F
- Average low
- 46°F
- Precipitation
- 2.3 in
- Wet days
- 7
- Sunrise · sunset
- 6:51 AM · 5:04 PM
What to wear in January
- Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
What January weather is good for
January compared with the months around it
Planning a trip? See the best time to visit San Diego and today’s forecast.
Questions
How hot does it get in San Diego in January?
Average highs are 67°F and average lows 46°F, for a daily mean of 57°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in San Diego in January?
January averages 2.3 in of precipitation over about 7 days with at least 0.01 in. It is the 2nd wettest month of the year.
What time is sunset in San Diego in January?
Around mid-January the sun rises about 6:51 AM and sets about 5:04 PM, for roughly 10.2 hours of daylight.
Is January a good time to visit San Diego?
The mildest months for visiting are June, July, August. January is mild.
NOAA U.S. Climate Normals 1991–2020, San Diego Montgomery Fld station (1.5 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.