W.carter / CC BY-SA 4.0
San Francisco, CA Weather on August 26
San Francisco hit 91°F on August 26, 1993, shattering summer cool
August 26 in San Francisco typically delivers mild summer weather with an average high of 69°F and low of 56°F. However, the city's weather can surprise: in 1993, temperatures soared to 91°F, the hottest reading for this date across 55 years of records. The coldest August 26 on record reached only 51°F in 2002, showing the narrow band of variation the Bay Area experiences even in late summer.
What to Expect on August 26
Planning for August 26th in San Francisco, CA? Great weather for outdoor activities.
Frequently Asked Questions
What was the warmest August 26 ever in San Francisco?
The warmest August 26 in San Francisco, CA reached 91°F in 1993. That is 22°F above the long-term average high of 69°F.
What was the coldest August 26 ever in San Francisco?
The coldest August 26 in San Francisco, CA dropped to 51°F in 2002. That is 5°F below the long-term average low of 56°F.
What is the average temperature on August 26 in San Francisco?
On August 26, San Francisco averages a high of 69°F and a low of 56°F based on 55 years of NOAA weather observations from SAN FRANCISCO DWTN.
How many years of weather data are available for August 26 in San Francisco?
We have 55 years of weather records for August 26 in San Francisco, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 26 Weather History in San Francisco
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 70°F | 59°F | 0" | -- |
| 2024 | 70°F | 57°F | 0" | -- |
| 2023 | 65°F | 58°F | 0" | -- |
| 2022 | 68°F | 55°F | 0" | -- |
| 2021 | 71°F | 56°F | 0" | -- |
| 2020 | 59°F | 55°F | 0" | -- |
| 2019 | 72°F | 54°F | 0" | -- |
| 2018 | 66°F | 55°F | 0" | -- |
| 2017 | 74°F | 53°F | 0" | -- |
| 2016 | 69°F | 59°F | 0" | -- |
| 2015 | 70°F | 58°F | 0" | -- |
| 2014 | 69°F | 60°F | 0" | -- |
| 2013 | 65°F | 59°F | 0" | -- |
| 2012 | 64°F | 55°F | 0" | -- |
| 2011 | 67°F | 54°F | 0" | -- |
| 2010 | 61°F | 55°F | 0" | -- |
| 2009 | 64°F | 53°F | 0" | -- |
| 2008 | 73°F | 55°F | 0" | -- |
| 2007 | 65°F | 57°F | 0" | -- |
| 2006 | 62°F | 55°F | 0" | -- |
| 2005 | 64°F | 53°F | 0" | -- |
| 2004 | 74°F | 59°F | 0" | -- |
| 2003 | 72°F | 58°F | 0" | -- |
| 2002 | 73°F | 51°F | 0" | -- |
| 2001 | 75°F | 53°F | 0" | -- |
| 2000 | 66°F | 54°F | 0" | -- |
| 1999 | 79°F | 55°F | 0" | -- |
| 1998 | 66°F | 53°F | 0" | -- |
| 1997 | 78°F | 61°F | 0" | -- |
| 1996 | 70°F | 58°F | 0" | -- |
| 1995 | 71°F | 53°F | 0" | -- |
| 1994 | 67°F | 56°F | 0" | -- |
| 1993 | 91°F | 59°F | 0" | -- |
| 1992 | 73°F | 55°F | 0" | -- |
| 1991 | 66°F | 55°F | 0" | -- |
| 1990 | 73°F | 62°F | 0" | -- |
| 1989 | 67°F | 55°F | 0" | -- |
| 1988 | 84°F | 57°F | 0" | -- |
| 1987 | 68°F | 56°F | 0" | -- |
| 1986 | 69°F | 55°F | 0" | -- |
| 1985 | 66°F | 56°F | 0" | -- |
| 1984 | 69°F | 56°F | 0" | -- |
| 1983 | 81°F | 56°F | 0" | -- |
| 1982 | 65°F | 55°F | 0" | -- |
| 1981 | 74°F | 55°F | 0" | -- |
| 1980 | 58°F | 52°F | 0" | -- |
| 1979 | 74°F | 57°F | 0" | -- |
| 1978 | 64°F | 55°F | 0" | -- |
| 1977 | 68°F | 56°F | 0" | -- |
| 1976 | 75°F | 57°F | 0" | -- |
| 1975 | 62°F | 53°F | 0" | -- |
| 1974 | 62°F | 53°F | 0" | -- |
| 1973 | 65°F | 53°F | 0" | -- |
| 1972 | 62°F | 56°F | 0" | -- |
| 1971 | 66°F | 57°F | 0" | -- |
Based on 55 years of data from NOAA station: SAN FRANCISCO DWTN
How Has August 26 Changed?
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for San Francisco, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.