Weather · January
Orange County weather in January
Average highs of 68°F, lows of 43°F and 3.1 in of rain, from 30 years of weather records.
January is Orange County’s coldest month, with average highs of 68°F and lows of 43°F. That is 2° cooler than December, and 10° below the yearly average high.
- Average high
- 68°F
- Average low
- 43°F
- Precipitation
- 3.1 in
- Wet days
- 6
- Sunrise · sunset
- 6:55 AM · 5:04 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 6 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 Orange County and today’s forecast.
Questions
How hot does it get in Orange County in January?
Average highs are 68°F and average lows 43°F, for a daily mean of 56°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Orange County in January?
January averages 3.1 in of precipitation over about 6 days with at least 0.01 in. It is the 2nd wettest month of the year.
What time is sunset in Orange County in January?
Around mid-January the sun rises about 6:55 AM and sets about 5:04 PM, for roughly 10.2 hours of daylight.
Is January a good time to visit Orange County?
The mildest months for visiting are May, June, October. January is mild.
NOAA U.S. Climate Normals 1991–2020, Tustin Irvine Rch station (0.4 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.