As of 12:15 PDT

Mission Viejo, CA weather in December

85°

Mission Viejo, Sunday, 9 August, 12:15

Mostly clear. Feels like 90°. High 90°, low 71°.

Pressure29.85 inHg

Wind7 mph SW

Humidity61%

Visibility6.2 mi

Dew point71°

See detailed hourly forecast

In December, Mission Viejo, CA averages a high of 63.2° and a low of 46.9°. About 1.9 inches of precipitation fall over the month (5 wet days). The record high is 85.6° (2017) and the record low 31.8° (1990). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	65.5°	48.2°	10%	78.6° (1976)	38.7° (2004)
2	65.7°	48.4°	7%	77.7° (1969)	39.6° (2004)
3	65.5°	48.9°	10%	76.6° (1989)	41.5° (2004)
4	65.1°	48.4°	12%	79.7° (1979)	40.8° (2004)
5	64.9°	48.2°	15%	83.3° (1979)	39.6° (2011)
6	65.1°	48.9°	15%	79.3° (1979)	40.5° (2011)
7	64.8°	49.1°	23%	78.8° (2017)	35.6° (1978)
8	64.6°	48.4°	15%	79.3° (1975)	33.8° (1978)
9	64.6°	47.3°	15%	83.8° (2017)	35.1° (1978)
10	64.6°	47.3°	10%	85.6° (2017)	39.7° (1985)
11	63.5°	47.8°	17%	79.7° (2017)	39.6° (1972)
12	62.6°	46.9°	13%	79.7° (2017)	36° (1972)
13	62.2°	46.6°	15%	75.7° (2017)	37° (1985)
14	62.8°	45.9°	12%	76.1° (2017)	34.5° (1967)
15	63.3°	45.9°	8%	77.9° (2013)	37.2° (1965)
16	64.2°	46.6°	22%	78.3° (2013)	37.2° (2021)
17	63.7°	46.6°	17%	76.8° (1998)	39.2° (1971)
18	62.8°	46.9°	18%	77° (2024)	39.4° (2001)
19	62.4°	46.6°	20%	75° (2024)	39.4° (2006)
20	62.4°	46°	18%	77.4° (1960)	35.6° (1978)
21	61.5°	46.6°	18%	77.5° (2020)	34.3° (1968)
22	61.5°	46.4°	20%	77° (1960)	35.2° (1990)
23	62.6°	46.2°	15%	77.5° (1989)	31.8° (1990)
24	63.1°	45.9°	17%	77.7° (1989)	36.3° (1990)
25	63.1°	46.4°	18%	77.9° (2013)	34.7° (1990)
26	61.7°	45.9°	15%	78.8° (2022)	33.3° (1987)
27	61.2°	45.1°	15%	77.7° (2013)	35.2° (1987)
28	60.8°	45.5°	23%	77.2° (1963)	35.1° (1987)
29	61.2°	45.5°	25%	78.4° (1963)	34.7° (1971)
30	61.2°	45.3°	22%	80.6° (1980)	32.4° (1982)
31	61.3°	45.7°	18%	75.6° (1963)	36.7° (1987)