Weather on August 27
San Mateo, CA
55 Years of Data
Avg High
75°F
Avg Low
56°F
Warmest
1993
78°F avg
Coldest
1995
59°F avg
About This Date
August 27th in San Mateo, CA typically brings pleasant summer weather, with average highs around 75°F and lows near 56°F. Over 55 years of records, the warmest August 27th was in 1993 (78°F average), while the coldest was 1995 (59°F) — a 19°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 27th in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 59° | 67° | — | — |
| 2024 | 86° | 55° | 71° | — | — |
| 2023 | 70° | 58° | 64° | — | — |
| 2022 | 74° | 56° | 65° | — | — |
| 2021 | 88° | 59° | 73° | — | — |
| 2020 | 68° | 55° | 62° | — | — |
| 2019 | 74° | 58° | 66° | — | — |
| 2018 | 71° | 56° | 63° | — | — |
| 2017 | 77° | 60° | 69° | — | — |
| 2016 | 72° | 61° | 66° | — | — |
| 2015 | 86° | 61° | 73° | — | — |
| 2014 | 74° | 60° | 67° | — | — |
| 2013 | 72° | 56° | 64° | — | — |
| 2012 | 75° | 58° | 66° | — | — |
| 2011 | 69° | 54° | 61° | — | — |
| 2010 | 68° | 57° | 63° | — | — |
| 2009 | 89° | 53° | 71° | — | — |
| 2008 | 89° | 58° | 73° | — | — |
| 2007 | 73° | 56° | 64° | — | — |
| 2006 | 68° | 55° | 62° | — | — |
| 2005 | 75° | 53° | 64° | — | — |
| 2004 | 90° | 61° | 75° | — | — |
| 2003 | 68° | 58° | 63° | — | — |
| 2002 | 85° | 57° | 71° | — | — |
| 2001 | 79° | 56° | 67° | — | — |
| 2000 | 71° | 54° | 62° | — | — |
| 1999 | 76° | 59° | 67° | — | — |
| 1998 | 73° | 52° | 62° | — | — |
| 1997 | 74° | 63° | 68° | — | — |
| 1996 | 70° | 57° | 63° | — | — |
| 1995coldest | 66° | 52° | 59° | — | — |
| 1994 | 69° | 53° | 61° | — | — |
| 1993warmest | 94° | 62° | 78° | — | — |
| 1992 | 70° | 53° | 61° | — | — |
| 1991 | 69° | 58° | 63° | — | — |
| 1990 | 79° | 61° | 70° | — | — |
| 1989 | 70° | 53° | 61° | — | — |
| 1988 | 72° | 56° | 64° | — | — |
| 1987 | 73° | 57° | 65° | — | — |
| 1986 | 67° | 54° | 60° | — | — |
| 1985 | 68° | 54° | 61° | — | — |
| 1984 | 70° | 56° | 63° | — | — |
| 1983 | 76° | 57° | 66° | — | — |
| 1982 | 72° | 58° | 65° | — | — |
| 1981 | 88° | 52° | 70° | — | — |
| 1980 | 68° | 54° | 61° | — | — |
| 1979 | 73° | 59° | 66° | — | — |
| 1978 | 85° | 53° | 69° | — | — |
| 1977 | 71° | 50° | 61° | — | — |
| 1976 | 84° | 49° | 66° | — | — |
| 1975 | 82° | 53° | 68° | — | — |
| 1974 | 75° | 52° | 63° | — | — |
| 1973 | 78° | 49° | 63° | — | — |
| 1972 | 73° | 54° | 63° | — | — |
| 1971 | 81° | 51° | 66° | — | — |
55 years of data from BURLINGAME