Weather on October 27
San Mateo, CA
55 Years of Data
Avg High
69°F
Avg Low
52°F
Warmest
2003
72°F avg
Coldest
1975
52°F avg
About This Date
October 27th in San Mateo, CA typically brings mild fall weather, with average highs around 69°F and lows near 52°F. Over 55 years of records, the warmest October 27th was in 2003 (72°F average), while the coldest was 1975 (52°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 11% of October 27th dates historically, with the wettest October 27th recording 2.11" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for October 27th in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 56° | 62° | — | — |
| 2024 | 69° | 56° | 62° | — | — |
| 2023 | 65° | 50° | 57° | — | — |
| 2022 | 70° | 47° | 58° | — | — |
| 2021 | 71° | 56° | 63° | — | — |
| 2020 | 77° | 54° | 65° | — | — |
| 2019 | 69° | 52° | 60° | — | — |
| 2018 | 70° | 54° | 62° | — | — |
| 2017 | 80° | 54° | 67° | — | — |
| 2016 | 65° | 60° | 62° | 1.47" | — |
| 2015 | 68° | 58° | 63° | — | — |
| 2014 | 70° | 56° | 63° | — | — |
| 2013 | 60° | 50° | 55° | — | — |
| 2012 | 78° | 55° | 67° | — | — |
| 2011 | 72° | 48° | 60° | — | — |
| 2010 | 66° | 52° | 59° | — | — |
| 2009 | 65° | 53° | 59° | — | — |
| 2008 | 61° | 49° | 55° | — | — |
| 2007 | 64° | 51° | 58° | — | — |
| 2006 | 74° | 50° | 62° | — | — |
| 2005 | 66° | 54° | 60° | — | — |
| 2004 | 59° | 48° | 54° | — | — |
| 2003warmest | 86° | 58° | 72° | — | — |
| 2002 | 68° | 47° | 57° | — | — |
| 2001 | 66° | 55° | 61° | — | — |
| 2000 | 64° | 53° | 59° | — | — |
| 1999 | 69° | 54° | 61° | 1.12" | — |
| 1998 | 64° | 52° | 58° | — | — |
| 1997 | 72° | 54° | 63° | — | — |
| 1996 | 69° | 48° | 59° | — | — |
| 1995 | 76° | 53° | 64° | — | — |
| 1994 | 67° | 52° | 59° | — | — |
| 1993 | 85° | 57° | 71° | — | — |
| 1992 | 69° | 58° | 63° | — | — |
| 1991 | 62° | 48° | 55° | — | — |
| 1990 | 72° | 48° | 60° | — | — |
| 1989 | 63° | 52° | 57° | 0.15" | — |
| 1988 | 63° | 53° | 58° | — | — |
| 1987 | 74° | 61° | 67° | 1.65" | — |
| 1986 | 68° | 53° | 61° | — | — |
| 1985 | 69° | 48° | 59° | — | — |
| 1984 | 61° | 46° | 53° | — | — |
| 1983 | 79° | 56° | 67° | — | — |
| 1982 | 63° | 47° | 55° | — | — |
| 1981 | 64° | 58° | 61° | 2.11" | — |
| 1980 | 70° | 50° | 60° | — | — |
| 1979 | 69° | 50° | 60° | — | — |
| 1978 | 65° | 47° | 56° | — | — |
| 1977 | 65° | 54° | 59° | 0.23" | — |
| 1976 | 74° | 45° | 59° | — | — |
| 1975coldest | 59° | 45° | 52° | — | — |
| 1974 | 69° | 50° | 60° | — | — |
| 1973 | 73° | 46° | 60° | — | — |
| 1972 | 65° | — | — | — | — |
| 1971 | 59° | 49° | 54° | — | — |
55 years of data from BURLINGAME