Weather on August 28
San Mateo, CA
55 Years of Data
Avg High
76°F
Avg Low
57°F
Warmest
2015
79°F avg
Coldest
2006
59°F avg
About This Date
August 28th in San Mateo, CA typically brings pleasant summer weather, with average highs around 76°F and lows near 57°F. Over 55 years of records, the warmest August 28th was in 2015 (79°F average), while the coldest was 2006 (59°F) — a 20°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 28th in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 59° | 67° | — | — |
| 2024 | 71° | 56° | 63° | — | — |
| 2023 | 74° | 59° | 66° | — | — |
| 2022 | 75° | 57° | 66° | — | — |
| 2021 | 89° | 60° | 75° | — | — |
| 2020 | 67° | 55° | 61° | — | — |
| 2019 | 77° | 59° | 68° | — | — |
| 2018 | 68° | 58° | 63° | — | — |
| 2017 | 73° | 58° | 65° | — | — |
| 2016 | 72° | 59° | 65° | — | — |
| 2015warmest | 93° | 64° | 79° | — | — |
| 2014 | 74° | 59° | 66° | — | — |
| 2013 | 75° | 59° | 67° | — | — |
| 2012 | 76° | 57° | 66° | — | — |
| 2011 | 68° | 53° | 61° | — | — |
| 2010 | 67° | 56° | 61° | — | — |
| 2009 | 95° | 61° | 78° | — | — |
| 2008 | 90° | 62° | 76° | — | — |
| 2007 | 80° | 56° | 68° | — | — |
| 2006coldest | 65° | 54° | 59° | — | — |
| 2005 | 72° | 53° | 62° | — | — |
| 2004 | 90° | 60° | 75° | — | — |
| 2003 | 65° | 56° | 60° | — | — |
| 2002 | 75° | 58° | 66° | — | — |
| 2001 | 74° | 55° | 64° | — | — |
| 2000 | 75° | 55° | 65° | — | — |
| 1999 | 72° | 57° | 64° | — | — |
| 1998 | 68° | 53° | 61° | — | — |
| 1997 | 76° | 63° | 69° | — | — |
| 1996 | 78° | 55° | 67° | — | — |
| 1995 | 70° | 52° | 61° | — | — |
| 1994 | 73° | 57° | 65° | — | — |
| 1993 | 83° | 58° | 70° | — | — |
| 1992 | 72° | 56° | 64° | — | — |
| 1991 | 74° | 60° | 67° | — | — |
| 1990 | 78° | 61° | 69° | — | — |
| 1989 | 68° | 53° | 61° | — | — |
| 1988 | 73° | 57° | 65° | — | — |
| 1987 | 74° | 56° | 65° | — | — |
| 1986 | 69° | 56° | 62° | — | — |
| 1985 | 70° | 52° | 61° | — | — |
| 1984 | 73° | 57° | 65° | — | — |
| 1983 | 73° | 58° | 65° | — | — |
| 1982 | 71° | 55° | 63° | — | — |
| 1981 | 76° | 53° | 64° | — | — |
| 1980 | 72° | 50° | 61° | — | — |
| 1979 | 77° | 60° | 69° | — | — |
| 1978 | 96° | — | — | — | — |
| 1977 | 78° | 54° | 66° | — | — |
| 1976 | 83° | 49° | 66° | — | — |
| 1975 | 81° | 53° | 67° | — | — |
| 1974 | 67° | 58° | 62° | — | — |
| 1973 | 84° | 49° | 66° | — | — |
| 1972 | 75° | 57° | 66° | — | — |
| 1971 | 75° | 54° | 64° | — | — |
55 years of data from BURLINGAME