Weather on October 21
Newport Beach, CA
55 Years of Data
Avg High
72°F
Avg Low
59°F
Warmest
1980
73°F avg
Coldest
1971
57°F avg
About This Date
October 21st in Newport Beach, CA typically brings pleasant fall weather, with average highs around 72°F and lows near 59°F. Over 55 years of records, the warmest October 21st was in 1980 (73°F average), while the coldest was 1971 (57°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 11% of October 21st dates historically, with the wettest October 21st recording 0.76" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 60° | 66° | 0.03" | — |
| 2024 | 77° | 57° | 67° | — | — |
| 2023 | 74° | 64° | 69° | — | — |
| 2022 | 76° | 65° | 70° | — | — |
| 2021 | 66° | 56° | 61° | — | — |
| 2020 | 72° | 66° | 69° | — | — |
| 2019 | 80° | 60° | 70° | — | — |
| 2018 | 74° | 63° | 68° | — | — |
| 2017 | 71° | 59° | 65° | — | — |
| 2016 | 84° | 60° | 72° | — | — |
| 2015 | 74° | 64° | 69° | — | — |
| 2014 | 73° | 63° | 68° | — | — |
| 2013 | 68° | 59° | 64° | — | — |
| 2012 | 68° | 62° | 65° | 0.28" | — |
| 2011 | 65° | 62° | 63° | — | — |
| 2010 | 74° | 66° | 70° | 0.05" | — |
| 2009 | 81° | 56° | 68° | — | — |
| 2008 | 66° | 56° | 61° | — | — |
| 2007 | 82° | 55° | 69° | — | — |
| 2006 | 71° | 56° | 63° | — | — |
| 2005 | 66° | 61° | 63° | — | — |
| 2004 | 72° | 62° | 67° | — | — |
| 2003 | 82° | 62° | 72° | — | — |
| 2002 | 66° | 62° | 64° | — | — |
| 2001 | 66° | 60° | 63° | — | — |
| 2000 | 64° | 55° | 60° | — | — |
| 1999 | 83° | 57° | 70° | — | — |
| 1998 | 76° | 57° | 66° | — | — |
| 1997 | 68° | 58° | 63° | — | — |
| 1996 | 78° | 53° | 66° | — | — |
| 1995 | 67° | 61° | 64° | — | — |
| 1994 | 67° | 52° | 59° | — | — |
| 1993 | 72° | 57° | 64° | — | — |
| 1992 | 68° | 65° | 66° | 0.03" | — |
| 1991 | 77° | 63° | 70° | — | — |
| 1990 | 75° | 61° | 68° | — | — |
| 1989 | 67° | 59° | 63° | 0.76" | — |
| 1988 | 66° | 64° | 65° | — | — |
| 1987 | 72° | 57° | 64° | — | — |
| 1986 | 73° | 53° | 63° | — | — |
| 1985 | 69° | 61° | 65° | 0.08" | — |
| 1984 | 70° | 57° | 63° | — | — |
| 1983 | 79° | 63° | 71° | — | — |
| 1982 | 72° | 56° | 64° | — | — |
| 1981 | 70° | 62° | 66° | — | — |
| 1980warmest | 77° | 69° | 73° | — | — |
| 1979 | 68° | 53° | 61° | — | — |
| 1978 | 72° | 61° | 66° | — | — |
| 1977 | 70° | 57° | 63° | — | — |
| 1976 | 71° | 65° | 68° | — | — |
| 1975 | 67° | 57° | 62° | — | — |
| 1974 | 65° | 61° | 63° | — | — |
| 1973 | 65° | 58° | 61° | — | — |
| 1972 | 69° | 50° | 60° | — | — |
| 1971coldest | 68° | 46° | 57° | — | — |
55 years of data from NEWPORT BEACH HARBOR