Weather on August 29
Costa Mesa, CA
55 Years of Data
Avg High
85°F
Avg Low
65°F
Warmest
1998
84°F avg
Coldest
2000
68°F avg
About This Date
August 29th in Costa Mesa, CA typically brings warm summer weather, with average highs around 85°F and lows near 65°F. Over 55 years of records, the warmest August 29th was in 1998 (84°F average), while the coldest was 2000 (68°F) — a 16°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for August 29th in Costa Mesa, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 69° | 79° | — | — |
| 2024 | 78° | 66° | 72° | — | — |
| 2023 | 90° | 69° | 79° | — | — |
| 2022 | 80° | 71° | 76° | — | — |
| 2021 | 82° | 66° | 74° | — | — |
| 2020 | 78° | 66° | 72° | — | — |
| 2019 | 83° | 70° | 76° | — | — |
| 2018 | 83° | 68° | 75° | — | — |
| 2017 | 87° | 67° | 77° | — | — |
| 2016 | 83° | 66° | 74° | — | — |
| 2015 | 89° | 71° | 80° | — | — |
| 2014 | 84° | 70° | 77° | — | — |
| 2013 | 95° | 70° | 82° | — | — |
| 2012 | 87° | 72° | 79° | — | — |
| 2011 | 82° | 65° | 73° | — | — |
| 2010 | 75° | 63° | 69° | — | — |
| 2009 | 92° | 68° | 80° | — | — |
| 2008 | 83° | 66° | 74° | — | — |
| 2007 | 86° | 66° | 76° | — | — |
| 2006 | 82° | 64° | 73° | — | — |
| 2005 | 83° | 66° | 74° | — | — |
| 2004 | 80° | 66° | 73° | — | — |
| 2003 | 78° | 63° | 70° | — | — |
| 2002 | 75° | 63° | 69° | — | — |
| 2001 | 75° | 63° | 69° | — | — |
| 2000coldest | 70° | 66° | 68° | — | — |
| 1999 | 78° | 61° | 69° | — | — |
| 1998warmest | 98° | 69° | 84° | — | — |
| 1997 | 84° | 63° | 73° | — | — |
| 1996 | 97° | 66° | 81° | — | — |
| 1995 | 97° | 66° | 81° | — | — |
| 1994 | 87° | 62° | 75° | — | — |
| 1993 | 80° | 65° | 72° | — | — |
| 1992 | 82° | 64° | 73° | — | — |
| 1991 | 81° | 59° | 70° | — | — |
| 1990 | 86° | 65° | 75° | — | — |
| 1989 | 78° | 60° | 69° | — | — |
| 1988 | 87° | 66° | 77° | — | — |
| 1987 | 78° | 64° | 71° | — | — |
| 1986 | 89° | 64° | 77° | — | — |
| 1985 | 93° | 68° | 81° | — | — |
| 1984 | 92° | 70° | 81° | — | — |
| 1983 | 93° | 64° | 79° | — | — |
| 1982 | 89° | 67° | 78° | — | — |
| 1981 | 93° | 65° | 79° | — | — |
| 1980 | 83° | 60° | 71° | — | — |
| 1979 | 78° | 65° | 71° | — | — |
| 1978 | 87° | 65° | 76° | — | — |
| 1977 | 81° | 63° | 72° | — | — |
| 1976 | 92° | 67° | 79° | — | — |
| 1975 | 82° | 55° | 69° | — | — |
| 1974 | 90° | 60° | 75° | — | — |
| 1973 | 79° | 59° | 69° | — | — |
| 1972 | 89° | 74° | 81° | — | — |
| 1971 | 91° | 65° | 78° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP