Weather on May 29
Costa Mesa, CA
55 Years of Data
Avg High
75°F
Avg Low
59°F
Warmest
1978
80°F avg
Coldest
1980
60°F avg
About This Date
May 29th in Costa Mesa, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 59°F. Over 55 years of records, the warmest May 29th was in 1978 (80°F average), while the coldest was 1980 (60°F) — a 20°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for May 29th in Costa Mesa, CA? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 63° | 68° | — | — |
| 2024 | 70° | 59° | 64° | — | — |
| 2023 | 69° | 61° | 65° | — | — |
| 2022 | 74° | 63° | 68° | — | — |
| 2021 | 70° | 61° | 65° | — | — |
| 2020 | 73° | 63° | 68° | — | — |
| 2019 | 71° | 57° | 64° | — | — |
| 2018 | 70° | 60° | 65° | — | — |
| 2017 | 70° | 61° | 65° | — | — |
| 2016 | 70° | 61° | 65° | — | — |
| 2015 | 73° | 60° | 67° | — | — |
| 2014 | 75° | 66° | 71° | — | — |
| 2013 | 76° | 61° | 68° | — | — |
| 2012 | 75° | 58° | 66° | — | — |
| 2011 | 68° | 56° | 62° | — | — |
| 2010 | 84° | 56° | 70° | — | — |
| 2009 | 68° | 61° | 64° | — | — |
| 2008 | 73° | 56° | 64° | — | — |
| 2007 | 69° | 59° | 64° | — | — |
| 2006 | 75° | 58° | 66° | — | — |
| 2005 | 72° | 61° | 66° | — | — |
| 2004 | 72° | 62° | 67° | — | — |
| 2003 | 72° | 60° | 66° | — | — |
| 2002 | 76° | 59° | 67° | — | — |
| 2001 | 73° | 58° | 65° | — | — |
| 2000 | 73° | 62° | 68° | — | — |
| 1999 | 69° | 59° | 64° | — | — |
| 1998 | 73° | 60° | 67° | — | — |
| 1997 | 92° | 67° | 79° | — | — |
| 1996 | 72° | 60° | 66° | — | — |
| 1995 | 77° | 60° | 69° | — | — |
| 1994 | 86° | 56° | 71° | — | — |
| 1993 | 78° | 57° | 68° | — | — |
| 1992 | 74° | 61° | 67° | — | — |
| 1991 | 69° | 56° | 62° | — | — |
| 1990 | 70° | 55° | 62° | — | — |
| 1989 | 74° | 58° | 66° | — | — |
| 1988 | 71° | 55° | 63° | — | — |
| 1987 | 74° | 55° | 64° | — | — |
| 1986 | 76° | 61° | 68° | — | — |
| 1985 | 74° | 49° | 61° | — | — |
| 1984 | 92° | 59° | 75° | — | — |
| 1983 | 77° | 59° | 68° | — | — |
| 1982 | 69° | 59° | 64° | — | — |
| 1981 | 72° | 62° | 67° | — | — |
| 1980coldest | 69° | 50° | 60° | — | — |
| 1979 | 70° | 60° | 65° | — | — |
| 1978warmest | 98° | 63° | 80° | — | — |
| 1977 | 80° | 55° | 68° | — | — |
| 1976 | 67° | 58° | 62° | — | — |
| 1975 | 73° | 59° | 66° | — | — |
| 1974 | 73° | 60° | 67° | — | — |
| 1973 | 95° | 60° | 78° | — | — |
| 1972 | 93° | 61° | 77° | — | — |
| 1971 | 67° | 55° | 61° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP