Weather on August 9
Irvine, CA
55 Years of Data
Avg High
87°F
Avg Low
61°F
Warmest
1998
85°F avg
Coldest
1976
67°F avg
About This Date
August 9th in Irvine, CA typically brings warm summer weather, with average highs around 87°F and lows near 61°F — a 26°F daily swing. Over 55 years of records, the warmest August 9th was in 1998 (85°F average), while the coldest was 1976 (67°F) — a 18°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 9th in Irvine, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 59° | 75° | — | — |
| 2024 | 89° | 64° | 77° | — | — |
| 2023 | 82° | 63° | 72° | — | — |
| 2022 | 96° | 69° | 83° | — | — |
| 2021 | 87° | 62° | 75° | — | — |
| 2020 | 85° | 62° | 73° | — | — |
| 2019 | 88° | 61° | 74° | — | — |
| 2018 | 101° | 66° | 83° | — | — |
| 2017 | 89° | 55° | 72° | — | — |
| 2016 | 85° | 69° | 77° | — | — |
| 2015 | 78° | 63° | 70° | — | — |
| 2014 | 87° | 65° | 76° | — | — |
| 2013 | 83° | 52° | 67° | — | — |
| 2012 | 96° | 60° | 78° | — | — |
| 2011 | 85° | 55° | 70° | — | — |
| 2010 | 83° | 54° | 68° | — | — |
| 2009 | 84° | 57° | 71° | — | — |
| 2008 | 91° | 58° | 74° | — | — |
| 2007 | 87° | 59° | 73° | — | — |
| 2006 | 95° | 60° | 78° | — | — |
| 2005 | 91° | 62° | 77° | — | — |
| 2004 | 93° | 60° | 77° | — | — |
| 2003 | 98° | 63° | 80° | — | — |
| 2002 | 97° | 57° | 77° | — | — |
| 2001 | 80° | 62° | 71° | — | — |
| 2000 | 84° | 61° | 72° | — | — |
| 1999 | 82° | 58° | 70° | — | — |
| 1998warmest | 103° | 67° | 85° | — | — |
| 1997 | 88° | 67° | 77° | — | — |
| 1996 | 88° | 65° | 76° | — | — |
| 1995 | 92° | 68° | 80° | — | — |
| 1994 | 96° | 63° | 79° | — | — |
| 1993 | 86° | 64° | 75° | — | — |
| 1992 | 92° | 63° | 77° | — | — |
| 1991 | 83° | 59° | 71° | — | — |
| 1990 | 85° | 66° | 75° | — | — |
| 1989 | 84° | 61° | 72° | — | — |
| 1988 | 80° | 58° | 69° | — | — |
| 1987 | 83° | 59° | 71° | — | — |
| 1986 | 84° | 65° | 74° | — | — |
| 1985 | 80° | 57° | 69° | — | — |
| 1984 | 83° | 67° | 75° | — | — |
| 1983 | 90° | 70° | 80° | — | — |
| 1982 | 85° | — | — | — | — |
| 1981 | 88° | — | — | — | — |
| 1980 | 84° | — | — | — | — |
| 1979 | 90° | 51° | 70° | — | — |
| 1978 | 85° | 65° | 75° | — | — |
| 1977 | 86° | 60° | 73° | — | — |
| 1976coldest | 83° | 52° | 67° | — | — |
| 1975 | 89° | 59° | 74° | — | — |
| 1974 | 79° | 63° | 71° | — | — |
| 1973 | 80° | 57° | 69° | — | — |
| 1972 | 81° | 62° | 71° | — | — |
| 1971 | 92° | 63° | 77° | — | — |
55 years of data from IRVINE RCH