Santa Ana River Mouth Weather Forecast
- 47
- 61
Mostly Sunny
- 51
- 64
Mostly Sunny
- 51
- 66
Mostly Sunny
- 54
- 68
Partly Sunny
- 55
- 66
Rain Showers Likely
- 56
- 63
Rain Showers Likely
Today 27 Dec Orange County Coastal
Partly cloudy. Highs 58 to 62. Light Winds.
Tonight 27 Dec Orange County Coastal
Mostly clear. Lows 44 to 47. Light Winds.
Santa Ana River Mouth Temperature Statistics
December Temperature
John Wayne-Orange County Airport (6.2 miles)
Lowest 6 December, 2025
48 °FAverage December
59.8 °FHighest 9 December, 2025
82 °F
Climate (2020–Present)
John Wayne-Orange County Airport (6.2 miles)
Average Low 2020–2025
58.7 °FAverage 2020–2025
65.6 °FAverage High 2020–2025
73.3 °F