Weather on August 19
San Mateo, CA
55 Years of Data
Avg High
72°F
Avg Low
56°F
Warmest
1978
71°F avg
Coldest
1973
57°F avg
About This Date
August 19th 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 19th was in 1978 (71°F average), while the coldest was 1973 (57°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 19th dates historically, with the wettest August 19th recording 1.42" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for August 19th in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 58° | 65° | — | — |
| 2024 | 70° | 52° | 61° | — | — |
| 2023 | 77° | 62° | 70° | — | — |
| 2022 | 70° | 58° | 64° | — | — |
| 2021 | 73° | 59° | 66° | — | — |
| 2020 | 80° | 61° | 70° | — | — |
| 2019 | 71° | 58° | 64° | — | — |
| 2018 | 68° | 52° | 60° | — | — |
| 2017 | 76° | 59° | 67° | — | — |
| 2016 | 73° | 58° | 65° | — | — |
| 2015 | 74° | 59° | 66° | — | — |
| 2014 | 75° | 60° | 68° | — | — |
| 2013 | 74° | 59° | 66° | — | — |
| 2012 | 65° | 53° | 59° | — | — |
| 2011 | 68° | 55° | 62° | — | — |
| 2010 | 72° | 55° | 63° | — | — |
| 2009 | 73° | 57° | 65° | — | — |
| 2008 | 72° | 58° | 65° | — | — |
| 2007 | 74° | 59° | 66° | — | — |
| 2006 | 65° | 54° | 59° | — | — |
| 2005 | 67° | 56° | 61° | — | — |
| 2004 | 75° | 59° | 67° | — | — |
| 2003 | 71° | 60° | 66° | — | — |
| 2002 | 59° | 56° | 57° | — | — |
| 2001 | 64° | 54° | 59° | — | — |
| 2000 | 69° | 54° | 61° | — | — |
| 1999 | 72° | 55° | 63° | — | — |
| 1998 | 72° | 57° | 64° | — | — |
| 1997 | 70° | 59° | 64° | 1.42" | — |
| 1996 | 64° | 52° | 58° | — | — |
| 1995 | 88° | 53° | 70° | — | — |
| 1994 | 71° | 55° | 63° | — | — |
| 1993 | 70° | 58° | 64° | — | — |
| 1992 | 69° | 53° | 61° | — | — |
| 1991 | 69° | 57° | 63° | — | — |
| 1990 | 74° | 60° | 67° | — | — |
| 1989 | 75° | 55° | 65° | — | — |
| 1988 | 78° | 53° | 66° | — | — |
| 1987 | 73° | 58° | 65° | — | — |
| 1986 | 71° | 52° | 61° | — | — |
| 1985 | 68° | 57° | 63° | — | — |
| 1984 | 72° | 54° | 63° | — | — |
| 1983 | 70° | 60° | 65° | — | — |
| 1982 | 73° | 55° | 64° | — | — |
| 1981 | 72° | 58° | 65° | — | — |
| 1980 | 76° | 57° | 66° | — | — |
| 1979 | 71° | 59° | 65° | — | — |
| 1978warmest | 89° | 53° | 71° | — | — |
| 1977 | 71° | 56° | 63° | — | — |
| 1976 | 76° | 60° | 68° | 0.76" | — |
| 1975 | 69° | — | — | — | — |
| 1974 | 76° | 54° | 65° | — | — |
| 1973coldest | 68° | 47° | 57° | — | — |
| 1972 | 76° | 50° | 63° | — | — |
| 1971 | 73° | 52° | 62° | — | — |
55 years of data from BURLINGAME