Weather on July 4
San Mateo, CA
55 Years of Data
About This Date
July 4th in San Mateo, CA typically brings pleasant summer weather, with average highs around 73°F and lows near 54°F. Over 55 years of records, the warmest July 4th was in 2024 (71°F average), while the coldest was 1982 (59°F) — a 12°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for July 4th in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 54° | 60° | — | — |
| 2024warmest | 87° | 56° | 71° | — | — |
| 2023 | 71° | 56° | 63° | — | — |
| 2022 | 79° | 58° | 68° | — | — |
| 2021 | 77° | 60° | 69° | — | — |
| 2020 | 79° | 53° | 66° | — | — |
| 2019 | 73° | 55° | 64° | — | — |
| 2018 | 73° | 50° | 62° | — | — |
| 2017 | 72° | 57° | 64° | — | — |
| 2016 | 73° | 55° | 64° | — | — |
| 2015 | 71° | 58° | 64° | — | — |
| 2014 | 68° | 55° | 62° | — | — |
| 2013 | 77° | 59° | 68° | — | — |
| 2012 | 72° | 54° | 63° | — | — |
| 2011 | 69° | 55° | 62° | — | — |
| 2010 | 79° | 55° | 67° | — | — |
| 2009 | 73° | 55° | 64° | — | — |
| 2008 | 68° | 55° | 62° | — | — |
| 2007 | 80° | 56° | 68° | — | — |
| 2006 | 66° | 54° | 60° | — | — |
| 2005 | 71° | 55° | 63° | — | — |
| 2004 | 75° | 57° | 66° | — | — |
| 2003 | 74° | 52° | 63° | — | — |
| 2002 | 66° | 54° | 60° | — | — |
| 2001 | 69° | 56° | 62° | — | — |
| 2000 | 69° | 51° | 60° | — | — |
| 1999 | 73° | 50° | 62° | — | — |
| 1998 | 70° | 54° | 62° | — | — |
| 1997 | 68° | 57° | 63° | — | — |
| 1996 | 69° | 53° | 61° | — | — |
| 1995 | 69° | 55° | 62° | — | — |
| 1994 | 73° | 52° | 62° | — | — |
| 1993 | 80° | 53° | 67° | — | — |
| 1992 | 72° | 59° | 65° | — | — |
| 1991 | 70° | 53° | 61° | — | — |
| 1990 | 73° | 57° | 65° | — | — |
| 1989 | 70° | 54° | 62° | — | — |
| 1988 | 66° | 54° | 60° | — | — |
| 1987 | 69° | 56° | 62° | — | — |
| 1986 | 69° | 54° | 61° | — | — |
| 1985 | 75° | 55° | 65° | — | — |
| 1984 | 74° | 54° | 64° | — | — |
| 1983 | 80° | 54° | 67° | — | — |
| 1982coldest | 65° | 54° | 59° | — | — |
| 1981 | 83° | 52° | 67° | — | — |
| 1980 | 66° | 53° | 60° | — | — |
| 1979 | 69° | 55° | 62° | — | — |
| 1978 | 80° | 52° | 66° | — | — |
| 1977 | 80° | 49° | 64° | — | — |
| 1976 | 69° | 50° | 60° | — | — |
| 1975 | 66° | 53° | 60° | — | — |
| 1974 | 74° | 54° | 64° | — | — |
| 1973 | 87° | 51° | 69° | — | — |
| 1972 | 69° | 56° | 62° | — | — |
| 1971 | 73° | 48° | 61° | — | — |
San Mateo, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Mateo, CA Monthly Precipitation
Average rainfall per month, in inches.
San Mateo, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Mateo, CA
San Mateo, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.