Weather on October 27
Costa Mesa, CA
55 Years of Data
Avg High
77°F
Avg Low
57°F
Warmest
1993
79°F avg
Coldest
1971
59°F avg
About This Date
October 27th in Costa Mesa, CA typically brings pleasant fall weather, with average highs around 77°F and lows near 57°F. Over 55 years of records, the warmest October 27th was in 1993 (79°F average), while the coldest was 1971 (59°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 11% of October 27th dates historically, with the wettest October 27th recording 2.41" of rain. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for October 27th in Costa Mesa, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 61° | 67° | — | — |
| 2024 | 78° | 57° | 68° | — | — |
| 2023 | 72° | 61° | 66° | — | — |
| 2022 | 75° | 60° | 68° | — | — |
| 2021 | 81° | 54° | 67° | — | — |
| 2020 | 81° | 53° | 67° | — | — |
| 2019 | 73° | 61° | 67° | — | — |
| 2018 | 79° | 60° | 69° | — | — |
| 2017 | 79° | 60° | 69° | — | — |
| 2016 | 78° | 60° | 69° | — | — |
| 2015 | 83° | 60° | 71° | — | — |
| 2014 | 76° | 60° | 68° | — | — |
| 2013 | 72° | 57° | 64° | — | — |
| 2012 | 90° | 59° | 74° | — | — |
| 2011 | 76° | 51° | 63° | — | — |
| 2010 | 89° | 58° | 73° | 0.03" | — |
| 2009 | 71° | 57° | 64° | — | — |
| 2008 | 86° | 56° | 71° | 0.03" | — |
| 2007 | 79° | 60° | 69° | — | — |
| 2006 | 84° | 51° | 68° | — | — |
| 2005 | 69° | 61° | 65° | — | — |
| 2004 | 65° | 54° | 59° | 2.41" | — |
| 2003 | 88° | 58° | 73° | — | — |
| 2002 | 68° | 55° | 62° | — | — |
| 2001 | 70° | 58° | 64° | — | — |
| 2000 | 65° | 56° | 60° | 2.11" | — |
| 1999 | 71° | 59° | 65° | — | — |
| 1998 | 74° | 55° | 64° | — | — |
| 1997 | 78° | 51° | 65° | — | — |
| 1996 | 74° | 55° | 64° | — | — |
| 1995 | 86° | 55° | 71° | — | — |
| 1994 | 81° | 55° | 68° | — | — |
| 1993warmest | 89° | 69° | 79° | — | — |
| 1992 | 77° | 62° | 70° | — | — |
| 1991 | 72° | 51° | 61° | 0.79" | — |
| 1990 | 84° | 55° | 70° | — | — |
| 1989 | 73° | 48° | 61° | — | — |
| 1988 | 73° | 57° | 65° | — | — |
| 1987 | 86° | 68° | 77° | — | — |
| 1986 | 81° | 56° | 68° | — | — |
| 1985 | 75° | 61° | 68° | — | — |
| 1984 | 73° | 58° | 65° | — | — |
| 1983 | 86° | 63° | 74° | — | — |
| 1982 | 78° | 50° | 64° | — | — |
| 1981 | 69° | 60° | 65° | — | — |
| 1980 | 74° | 51° | 62° | — | — |
| 1979 | 74° | 58° | 66° | — | — |
| 1978 | 78° | 59° | 69° | — | — |
| 1977 | 74° | 61° | 67° | — | — |
| 1976 | 83° | 54° | 68° | — | — |
| 1975 | 71° | 52° | 61° | 0.03" | — |
| 1974 | 71° | 57° | 64° | — | — |
| 1973 | 96° | 53° | 75° | — | — |
| 1972 | 71° | 55° | 63° | — | — |
| 1971coldest | 65° | 54° | 59° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP