Weather on August 25
Costa Mesa, CA
55 Years of Data
Avg High
84°F
Avg Low
65°F
Warmest
1985
83°F avg
Coldest
2002
69°F avg
About This Date
August 25th in Costa Mesa, CA typically brings warm summer weather, with average highs around 84°F and lows near 65°F. Over 55 years of records, the warmest August 25th was in 1985 (83°F average), while the coldest was 2002 (69°F) — a 14°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 August 25th in Costa Mesa, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 69° | 76° | — | — |
| 2024 | 81° | 65° | 73° | — | — |
| 2023 | 81° | 66° | 73° | — | — |
| 2022 | 83° | 71° | 77° | — | — |
| 2021 | 84° | 67° | 75° | — | — |
| 2020 | 86° | 71° | 79° | — | — |
| 2019 | 88° | 69° | 78° | — | — |
| 2018 | 79° | 69° | 74° | — | — |
| 2017 | 76° | 66° | 71° | — | — |
| 2016 | 76° | 66° | 71° | — | — |
| 2015 | 83° | 69° | 76° | — | — |
| 2014 | 80° | 70° | 75° | — | — |
| 2013 | 81° | 64° | 72° | — | — |
| 2012 | 78° | 67° | 72° | — | — |
| 2011 | 87° | 65° | 76° | — | — |
| 2010 | 91° | 69° | 80° | — | — |
| 2009 | 88° | 63° | 75° | — | — |
| 2008 | 83° | 67° | 75° | — | — |
| 2007 | 80° | 67° | 73° | — | — |
| 2006 | 78° | 66° | 72° | — | — |
| 2005 | 92° | 66° | 79° | — | — |
| 2004 | 77° | 64° | 71° | — | — |
| 2003 | 82° | 65° | 73° | — | — |
| 2002coldest | 78° | 61° | 69° | — | — |
| 2001 | 79° | 65° | 72° | — | — |
| 2000 | 80° | 66° | 73° | — | — |
| 1999 | 89° | 64° | 77° | — | — |
| 1998 | 84° | 67° | 75° | — | — |
| 1997 | 87° | 66° | 77° | — | — |
| 1996 | 89° | 63° | 76° | — | — |
| 1995 | 87° | 61° | 74° | — | — |
| 1994 | 86° | 65° | 75° | — | — |
| 1993 | 86° | 63° | 74° | — | — |
| 1992 | 82° | 63° | 72° | — | — |
| 1991 | 94° | 63° | 78° | — | — |
| 1990 | 79° | 66° | 72° | — | — |
| 1989 | 79° | 64° | 71° | — | — |
| 1988 | 89° | 68° | 79° | — | — |
| 1987 | 77° | 62° | 70° | — | — |
| 1986 | 86° | 61° | 73° | — | — |
| 1985warmest | 99° | 67° | 83° | — | — |
| 1984 | 85° | 68° | 76° | — | — |
| 1983 | 83° | 62° | 72° | — | — |
| 1982 | 81° | 65° | 73° | — | — |
| 1981 | 98° | 67° | 82° | — | — |
| 1980 | 83° | 62° | 72° | — | — |
| 1979 | 84° | 64° | 74° | — | — |
| 1978 | 80° | 60° | 70° | — | — |
| 1977 | 82° | 62° | 72° | — | — |
| 1976 | 85° | 62° | 73° | — | — |
| 1975 | 82° | 58° | 70° | — | — |
| 1974 | 83° | 60° | 71° | — | — |
| 1973 | 80° | 62° | 71° | — | — |
| 1972 | 79° | 65° | 72° | — | — |
| 1971 | 84° | 64° | 74° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP