Weather on September 4
San Francisco, CA
55 Years of Data
About This Date
September 4th in San Francisco, CA typically brings pleasant fall weather, with average highs around 70°F and lows near 56°F. Over 55 years of records, the warmest September 4th was in 2004 (75°F average), while the coldest was 1999 (55°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 September 4th in San Francisco, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 57° | 61° | — | — |
| 2024 | 68° | 57° | 63° | — | — |
| 2023 | 67° | 56° | 61° | — | — |
| 2022 | 82° | 57° | 70° | — | — |
| 2021 | 66° | 53° | 60° | — | — |
| 2020 | 69° | 55° | 62° | — | — |
| 2019 | 69° | 57° | 63° | — | — |
| 2018 | 66° | 56° | 61° | — | — |
| 2017 | 79° | 64° | 71° | — | — |
| 2016 | 65° | 53° | 59° | — | — |
| 2015 | 68° | 55° | 62° | — | — |
| 2014 | 69° | 59° | 64° | — | — |
| 2013 | 71° | 59° | 65° | — | — |
| 2012 | 62° | 51° | 57° | — | — |
| 2011 | 61° | 54° | 57° | — | — |
| 2010 | 62° | 52° | 57° | — | — |
| 2009 | 64° | 53° | 59° | — | — |
| 2008 | 93° | 58° | 75° | — | — |
| 2007 | 67° | 60° | 63° | — | — |
| 2006 | 61° | 53° | 57° | — | — |
| 2005 | 62° | 55° | 59° | — | — |
| 2004warmest | 88° | 63° | 75° | — | — |
| 2003 | 69° | 58° | 63° | — | — |
| 2002 | 64° | 54° | 59° | — | — |
| 2001 | 70° | 55° | 62° | — | — |
| 2000 | 65° | 55° | 60° | — | — |
| 1999coldest | 61° | 50° | 55° | — | — |
| 1998 | 65° | 56° | 60° | — | — |
| 1997 | 84° | 59° | 72° | — | — |
| 1996 | 70° | 56° | 63° | — | — |
| 1995 | 72° | 57° | 64° | — | — |
| 1994 | 81° | 56° | 68° | — | — |
| 1993 | 66° | 55° | 61° | — | — |
| 1992 | 76° | 56° | 66° | — | — |
| 1991 | 71° | 56° | 63° | — | — |
| 1990 | 74° | 58° | 66° | — | — |
| 1989 | 70° | 53° | 61° | — | — |
| 1988 | 81° | 54° | 67° | — | — |
| 1987 | 65° | 57° | 61° | — | — |
| 1986 | 68° | 57° | 63° | — | — |
| 1985 | 70° | 59° | 64° | — | — |
| 1984 | 85° | 56° | 70° | — | — |
| 1983 | 84° | 60° | 72° | — | — |
| 1982 | 75° | 54° | 64° | — | — |
| 1981 | 60° | 52° | 56° | — | — |
| 1980 | 63° | 53° | 58° | — | — |
| 1979 | 71° | 59° | 65° | — | — |
| 1978 | 74° | 59° | 66° | — | — |
| 1977 | 77° | 58° | 67° | — | — |
| 1976 | 60° | 54° | 57° | — | — |
| 1975 | 71° | 56° | 63° | — | — |
| 1974 | 64° | 55° | 60° | — | — |
| 1973 | 60° | 51° | 56° | — | — |
| 1972 | 69° | 57° | 63° | — | — |
| 1971 | 85° | 60° | 72° | — | — |
San Francisco, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Francisco, CA Monthly Precipitation
Average rainfall per month, in inches.
San Francisco, 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 Francisco, CA
Most pleasant months in San Francisco, CA: June, July, August, September, October.
What to expect on September 4th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 4th outlook →