Weather · October
Orange County weather in October
Average highs of 84°F, lows of 55°F and 0.70 in of rain, from 30 years of weather records.
October is Orange County’s 4th warmest month, with average highs of 84°F and lows of 55°F. That is 3° cooler than September, and 6° above the yearly average high.
- Average high
- 84°F
- Average low
- 55°F
- Precipitation
- 0.70 in
- Wet days
- 2
- Sunrise · sunset
- 6:55 AM · 6:17 PM
What to wear in October
- Warm days: shorts and T-shirts, with a light layer for cooler evenings.
What October weather is good for
What’s on in Orange County in October
Guides for this month: Halloween in Orange County.
See all upcoming events.
October 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 October?
Average highs are 84°F and average lows 55°F, for a daily mean of 69°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Orange County in October?
October averages 0.70 in of precipitation over about 2 days with at least 0.01 in. It is the 7th wettest month of the year.
What time is sunset in Orange County in October?
Around mid-October the sun rises about 6:55 AM and sets about 6:17 PM, for roughly 11.4 hours of daylight.
Is October a good time to visit Orange County?
Yes. October is one of the mildest months, with highs between 65°F and 85°F and little rain.
NOAA U.S. Climate Normals 1991–2020, Tustin Irvine Rch station (0.4 mi from downtown). Sunrise and sunset are calculated for October 15 at the city’s coordinates.