Weather on December 21
Newport Beach, CA
55 Years of Data
Avg High
64°F
Avg Low
49°F
Warmest
1999
65°F avg
Coldest
1978
48°F avg
About This Date
December 21st in Newport Beach, CA typically brings mild winter weather, with average highs around 64°F and lows near 49°F. Over 55 years of records, the warmest December 21st was in 1999 (65°F average), while the coldest was 1978 (48°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 18% of December 21st dates historically, with the wettest December 21st recording 3.56" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 21st in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 56° | 60° | — | — |
| 2024 | 61° | 45° | 53° | — | — |
| 2023 | 65° | 61° | 63° | 0.05" | — |
| 2022 | 62° | 50° | 56° | — | — |
| 2021 | 62° | 53° | 58° | — | — |
| 2020 | 68° | 51° | 60° | — | — |
| 2019 | 67° | 50° | 58° | — | — |
| 2018 | 65° | 56° | 60° | — | — |
| 2017 | 64° | 45° | 54° | — | — |
| 2016 | 69° | 58° | 63° | 0.33" | — |
| 2015 | 61° | 48° | 54° | — | — |
| 2014 | 65° | 54° | 59° | — | — |
| 2013 | 59° | 48° | 54° | — | — |
| 2012 | 62° | 39° | 51° | — | — |
| 2011 | 61° | 46° | 53° | — | — |
| 2010 | 59° | 54° | 56° | 3.56" | — |
| 2009 | 65° | 51° | 58° | — | — |
| 2008 | 63° | 42° | 52° | — | — |
| 2007 | 62° | 47° | 54° | 0.13" | — |
| 2006 | 59° | 43° | 51° | — | — |
| 2005 | 66° | 55° | 61° | — | — |
| 2004 | 63° | 56° | 59° | — | — |
| 2003 | 65° | 54° | 59° | — | — |
| 2002 | 60° | 54° | 57° | 0.1" | — |
| 2001 | 58° | 52° | 55° | 0.38" | — |
| 2000 | 70° | 54° | 62° | — | — |
| 1999warmest | 82° | 48° | 65° | — | — |
| 1998 | 71° | 42° | 57° | — | — |
| 1997 | 63° | 52° | 57° | 0.05" | — |
| 1996 | 60° | 52° | 56° | — | — |
| 1995 | 61° | 45° | 53° | — | — |
| 1994 | 62° | 46° | 54° | — | — |
| 1993 | 70° | 47° | 58° | — | — |
| 1992 | 58° | 42° | 50° | — | — |
| 1991 | 71° | 49° | 60° | — | — |
| 1990 | 53° | 42° | 48° | — | — |
| 1989 | 61° | 47° | 54° | — | — |
| 1988 | 61° | 49° | 55° | 1.4" | — |
| 1987 | 62° | 44° | 53° | — | — |
| 1986 | 69° | 48° | 59° | — | — |
| 1985 | 71° | 48° | 60° | — | — |
| 1984 | 58° | 41° | 49° | — | — |
| 1983 | 63° | 51° | 57° | — | — |
| 1982 | 62° | 53° | 58° | — | — |
| 1981 | 63° | 58° | 60° | 0.13" | — |
| 1980 | 61° | 50° | 55° | — | — |
| 1979 | 63° | 53° | 58° | 0.2" | — |
| 1978coldest | 58° | 38° | 48° | — | — |
| 1977 | 68° | 53° | 61° | — | — |
| 1976 | 68° | 46° | 57° | — | — |
| 1975 | 59° | 45° | 52° | — | — |
| 1974 | 61° | 48° | 54° | — | — |
| 1973 | 65° | 46° | 55° | — | — |
| 1972 | 71° | 47° | 59° | — | — |
| 1971 | 59° | 43° | 51° | — | — |
55 years of data from NEWPORT BEACH HARBOR