Weather on August 4
San Mateo, CA
55 Years of Data
Avg High
72°F
Avg Low
56°F
Warmest
1998
73°F avg
Coldest
1979
58°F avg
About This Date
August 4th in San Mateo, CA typically brings pleasant summer weather, with average highs around 72°F and lows near 56°F. Over 55 years of records, the warmest August 4th was in 1998 (73°F average), while the coldest was 1979 (58°F) — a 15°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 4th in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 57° | 65° | — | — |
| 2024 | 64° | 54° | 59° | — | — |
| 2023 | 71° | 58° | 64° | — | — |
| 2022 | 83° | 60° | 71° | — | — |
| 2021 | 68° | 56° | 62° | — | — |
| 2020 | 71° | 58° | 64° | — | — |
| 2019 | 73° | 61° | 67° | — | — |
| 2018 | 73° | 55° | 64° | — | — |
| 2017 | 76° | 60° | 68° | — | — |
| 2016 | 67° | 56° | 61° | — | — |
| 2015 | 73° | 61° | 67° | — | — |
| 2014 | 75° | 60° | 68° | — | — |
| 2013 | 67° | 55° | 61° | — | — |
| 2012 | 65° | 54° | 59° | — | — |
| 2011 | 64° | 57° | 61° | — | — |
| 2010 | 66° | 54° | 60° | — | — |
| 2009 | 73° | 58° | 65° | — | — |
| 2008 | 63° | 53° | 58° | — | — |
| 2007 | 68° | 54° | 61° | — | — |
| 2006 | 76° | 56° | 66° | — | — |
| 2005 | 71° | 56° | 63° | — | — |
| 2004 | 71° | 59° | 65° | — | — |
| 2003 | 74° | 65° | 69° | — | — |
| 2002 | 69° | 54° | 61° | — | — |
| 2001 | 71° | 60° | 66° | — | — |
| 2000 | 71° | 55° | 63° | — | — |
| 1999 | 64° | 55° | 60° | — | — |
| 1998warmest | 87° | 59° | 73° | — | — |
| 1997 | 82° | 57° | 70° | — | — |
| 1996 | 72° | 52° | 62° | — | — |
| 1995 | 73° | 54° | 63° | — | — |
| 1994 | 66° | 56° | 61° | — | — |
| 1993 | 77° | 60° | 69° | — | — |
| 1992 | 73° | 55° | 64° | — | — |
| 1991 | 66° | 56° | 61° | — | — |
| 1990 | 71° | 57° | 64° | — | — |
| 1989 | 74° | 56° | 65° | — | — |
| 1988 | 73° | 60° | 67° | — | — |
| 1987 | 69° | 54° | 61° | — | — |
| 1986 | 69° | 53° | 61° | — | — |
| 1985 | 75° | 55° | 65° | — | — |
| 1984 | 75° | 52° | 63° | — | — |
| 1983 | 72° | 58° | 65° | — | — |
| 1982 | 70° | 54° | 62° | — | — |
| 1981 | 66° | 54° | 60° | — | — |
| 1980 | 69° | 54° | 61° | — | — |
| 1979coldest | 63° | 54° | 58° | — | — |
| 1978 | 74° | 56° | 65° | — | — |
| 1977 | 73° | 54° | 63° | — | — |
| 1976 | 76° | 60° | 68° | — | — |
| 1975 | 74° | — | — | — | — |
| 1974 | 79° | 58° | 68° | — | — |
| 1973 | 70° | 50° | 60° | — | — |
| 1972 | 71° | 50° | 61° | — | — |
| 1971 | 75° | 55° | 65° | — | — |
55 years of data from BURLINGAME