Weather on August 17
San Francisco, CA
55 Years of Data
Avg High
68°F
Avg Low
56°F
Warmest
2020
71°F avg
Coldest
1973
55°F avg
About This Date
August 17th in San Francisco, CA typically brings mild summer weather, with average highs around 68°F and lows near 56°F. Over 55 years of records, the warmest August 17th was in 2020 (71°F average), while the coldest was 1973 (55°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 17th dates historically. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for August 17th in San Francisco, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 57° | 62° | — | — |
| 2024 | 73° | 57° | 65° | — | — |
| 2023 | 69° | 58° | 63° | — | — |
| 2022 | 68° | 55° | 62° | — | — |
| 2021 | 66° | 56° | 61° | — | — |
| 2020warmest | 81° | 62° | 71° | — | — |
| 2019 | 69° | 58° | 63° | — | — |
| 2018 | 65° | 54° | 59° | — | — |
| 2017 | 67° | 59° | 63° | — | — |
| 2016 | 66° | 54° | 60° | — | — |
| 2015 | 72° | 60° | 66° | — | — |
| 2014 | 67° | 56° | 61° | — | — |
| 2013 | 69° | 57° | 63° | — | — |
| 2012 | 62° | 53° | 58° | — | — |
| 2011 | 64° | 54° | 59° | — | — |
| 2010 | 66° | 53° | 60° | 0.03" | — |
| 2009 | 64° | 54° | 59° | — | — |
| 2008 | 65° | 56° | 60° | — | — |
| 2007 | 71° | 53° | 62° | — | — |
| 2006 | 66° | 53° | 60° | — | — |
| 2005 | 61° | 52° | 56° | — | — |
| 2004 | 70° | 57° | 63° | — | — |
| 2003 | 72° | 55° | 63° | — | — |
| 2002 | 60° | 54° | 57° | — | — |
| 2001 | 73° | 53° | 63° | — | — |
| 2000 | 70° | 52° | 61° | — | — |
| 1999 | 62° | 53° | 58° | — | — |
| 1998 | 64° | 55° | 60° | — | — |
| 1997 | 74° | 59° | 66° | — | — |
| 1996 | 66° | 55° | 61° | — | — |
| 1995 | 70° | 54° | 62° | — | — |
| 1994 | 74° | 56° | 65° | — | — |
| 1993 | 83° | 57° | 70° | — | — |
| 1992 | 69° | 54° | 61° | — | — |
| 1991 | 64° | 57° | 61° | — | — |
| 1990 | 73° | 60° | 67° | 0.03" | — |
| 1989 | 71° | 57° | 64° | — | — |
| 1988 | 81° | 54° | 67° | — | — |
| 1987 | 70° | 56° | 63° | — | — |
| 1986 | 70° | 60° | 65° | — | — |
| 1985 | 69° | 60° | 65° | — | — |
| 1984 | 81° | 56° | 68° | — | — |
| 1983 | 74° | 57° | 65° | — | — |
| 1982 | 67° | 55° | 61° | — | — |
| 1981 | 59° | 52° | 55° | — | — |
| 1980 | 62° | 53° | 58° | — | — |
| 1979 | 64° | 55° | 60° | — | — |
| 1978 | 72° | 55° | 63° | — | — |
| 1977 | 66° | 55° | 61° | — | — |
| 1976 | 70° | 60° | 65° | 0.1" | — |
| 1975 | 65° | 54° | 59° | — | — |
| 1974 | 63° | 53° | 58° | — | — |
| 1973coldest | 58° | 53° | 55° | — | — |
| 1972 | 70° | 55° | 62° | — | — |
| 1971 | 60° | 54° | 57° | — | — |
55 years of data from SAN FRANCISCO DWTN