Weather on September 3
San Mateo, CA
55 Years of Data
Avg High
74°F
Avg Low
56°F
Warmest
2017
77°F avg
Coldest
1977
59°F avg
About This Date
September 3rd in San Mateo, CA typically brings pleasant fall weather, with average highs around 74°F and lows near 56°F. Over 55 years of records, the warmest September 3rd was in 2017 (77°F average), while the coldest was 1977 (59°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 September 3rd in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 58° | 65° | — | — |
| 2024 | 84° | 51° | 68° | — | — |
| 2023 | 75° | 61° | 68° | — | — |
| 2022 | 76° | 58° | 67° | — | — |
| 2021 | 67° | 55° | 61° | — | — |
| 2020 | 67° | 58° | 62° | — | — |
| 2019 | 73° | 59° | 66° | — | — |
| 2018 | 70° | 55° | 62° | — | — |
| 2017warmest | 86° | 68° | 77° | — | — |
| 2016 | 66° | 57° | 62° | — | — |
| 2015 | 69° | 59° | 64° | — | — |
| 2014 | 76° | 60° | 68° | — | — |
| 2013 | 73° | 60° | 67° | — | — |
| 2012 | 74° | 52° | 63° | — | — |
| 2011 | 67° | 54° | 60° | — | — |
| 2010 | 74° | 57° | 65° | — | — |
| 2009 | 82° | 57° | 70° | — | — |
| 2008 | 88° | 57° | 72° | — | — |
| 2007 | 71° | 58° | 64° | — | — |
| 2006 | 65° | 55° | 60° | — | — |
| 2005 | 66° | 55° | 61° | — | — |
| 2004 | 85° | 56° | 70° | — | — |
| 2003 | 75° | 61° | 68° | — | — |
| 2002 | 69° | 57° | 63° | — | — |
| 2001 | 73° | 57° | 65° | — | — |
| 2000 | 69° | 56° | 62° | — | — |
| 1999 | 68° | 53° | 61° | — | — |
| 1998 | 80° | 55° | 68° | — | — |
| 1997 | 77° | 62° | 70° | — | — |
| 1996 | 70° | 56° | 63° | — | — |
| 1995 | 69° | 55° | 62° | — | — |
| 1994 | 71° | 58° | 64° | — | — |
| 1993 | 69° | 56° | 62° | — | — |
| 1992 | 71° | 58° | 64° | — | — |
| 1991 | 73° | 56° | 64° | — | — |
| 1990 | 72° | 59° | 65° | — | — |
| 1989 | 73° | 51° | 62° | — | — |
| 1988 | 72° | 55° | 63° | — | — |
| 1987 | 73° | 56° | 64° | — | — |
| 1986 | 71° | 57° | 64° | — | — |
| 1985 | 79° | 53° | 66° | — | — |
| 1984 | 80° | 53° | 67° | — | — |
| 1983 | 89° | 57° | 73° | — | — |
| 1982 | 71° | 57° | 64° | — | — |
| 1981 | 72° | 52° | 62° | — | — |
| 1980 | 67° | 53° | 60° | — | — |
| 1979 | 75° | 61° | 68° | — | — |
| 1978 | 92° | 57° | 74° | — | — |
| 1977coldest | 69° | 49° | 59° | — | — |
| 1976 | 74° | 47° | 60° | — | — |
| 1975 | 84° | 52° | 68° | — | — |
| 1974 | 72° | 53° | 62° | — | — |
| 1973 | 73° | 49° | 61° | — | — |
| 1972 | 70° | 60° | 65° | — | — |
| 1971 | 83° | 54° | 68° | — | — |
55 years of data from BURLINGAME