Weather on September 2
San Francisco, CA
55 Years of Data
Avg High
71°F
Avg Low
57°F
Warmest
2017
89°F avg
Coldest
1974
56°F avg
About This Date
September 2nd in San Francisco, CA typically brings pleasant fall weather, with average highs around 71°F and lows near 57°F. Over 55 years of records, the warmest September 2nd was in 2017 (89°F average), while the coldest was 1974 (56°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 2nd dates historically. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for September 2nd in San Francisco, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 57° | 65° | — | — |
| 2024 | 69° | 59° | 64° | — | — |
| 2023 | 72° | 60° | 66° | — | — |
| 2022 | 68° | 54° | 61° | — | — |
| 2021 | 66° | 56° | 61° | — | — |
| 2020 | 66° | 58° | 62° | — | — |
| 2019 | 64° | 60° | 62° | — | — |
| 2018 | 65° | 56° | 60° | — | — |
| 2017warmest | 102° | 75° | 89° | — | — |
| 2016 | 69° | 55° | 62° | — | — |
| 2015 | 67° | 60° | 63° | — | — |
| 2014 | 65° | 58° | 61° | — | — |
| 2013 | 71° | 60° | 66° | — | — |
| 2012 | 66° | 52° | 59° | — | — |
| 2011 | 69° | 54° | 61° | — | — |
| 2010 | 83° | 56° | 69° | — | — |
| 2009 | 88° | 59° | 73° | — | — |
| 2008 | 85° | 58° | 71° | — | — |
| 2007 | 80° | 58° | 69° | — | — |
| 2006 | 61° | 53° | 57° | — | — |
| 2005 | 61° | 53° | 57° | — | — |
| 2004 | 72° | 56° | 64° | — | — |
| 2003 | 66° | 56° | 61° | — | — |
| 2002 | 84° | 57° | 71° | — | — |
| 2001 | 67° | 52° | 59° | — | — |
| 2000 | 68° | 59° | 64° | 0.03" | — |
| 1999 | 68° | 55° | 62° | — | — |
| 1998 | 70° | 53° | 61° | — | — |
| 1997 | 75° | 59° | 67° | — | — |
| 1996 | 68° | 56° | 62° | — | — |
| 1995 | 71° | 54° | 62° | — | — |
| 1994 | 67° | 54° | 60° | — | — |
| 1993 | 75° | 57° | 66° | — | — |
| 1992 | 68° | 57° | 63° | — | — |
| 1991 | 94° | 57° | 75° | — | — |
| 1990 | 76° | 58° | 67° | — | — |
| 1989 | 77° | 55° | 66° | — | — |
| 1988 | 66° | 56° | 61° | — | — |
| 1987 | 70° | 57° | 63° | — | — |
| 1986 | 68° | 57° | 63° | — | — |
| 1985 | 67° | 58° | 62° | — | — |
| 1984 | 84° | 56° | 70° | — | — |
| 1983 | 81° | 56° | 68° | — | — |
| 1982 | 70° | 53° | 61° | — | — |
| 1981 | 67° | 53° | 60° | — | — |
| 1980 | 60° | 53° | 57° | — | — |
| 1979 | 73° | 64° | 69° | — | — |
| 1978 | 63° | 57° | 60° | — | — |
| 1977 | 59° | 54° | 56° | — | — |
| 1976 | 67° | 55° | 61° | — | — |
| 1975 | 78° | 55° | 67° | — | — |
| 1974coldest | 60° | 52° | 56° | — | — |
| 1973 | 62° | 52° | 57° | — | — |
| 1972 | 65° | 58° | 61° | — | — |
| 1971 | 72° | 58° | 65° | — | — |
55 years of data from SAN FRANCISCO DWTN