Weather on August 25
Sunnyvale, CA
55 Years of Data
Avg High
78°F
Avg Low
59°F
Warmest
1988
78°F avg
Coldest
1975
63°F avg
About This Date
August 25th in Sunnyvale, CA typically brings pleasant summer weather, with average highs around 78°F and lows near 59°F. Over 55 years of records, the warmest August 25th was in 1988 (78°F average), while the coldest was 1975 (63°F) — a 15°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 August 25th in Sunnyvale, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 63° | 69° | — | — |
| 2024 | 86° | 59° | 73° | — | — |
| 2023 | 77° | 64° | 71° | — | — |
| 2022 | 84° | 57° | 71° | — | — |
| 2021 | 76° | 56° | 66° | — | — |
| 2020 | 79° | 63° | 71° | — | — |
| 2019 | 80° | 64° | 72° | — | — |
| 2018 | 75° | 58° | 66° | — | — |
| 2017 | 77° | 58° | 67° | — | — |
| 2016 | 72° | 60° | 66° | — | — |
| 2015 | 76° | 59° | 67° | — | — |
| 2014 | 76° | 59° | 67° | — | — |
| 2013 | 80° | 63° | 71° | — | — |
| 2012 | 72° | 58° | 65° | — | — |
| 2011 | 75° | 62° | 69° | — | — |
| 2010 | 91° | 64° | 78° | — | — |
| 2009 | 77° | 57° | 67° | — | — |
| 2008 | 80° | 60° | 70° | — | — |
| 2007 | 74° | 61° | 67° | — | — |
| 2006 | 73° | 57° | 65° | — | — |
| 2005 | 74° | 58° | 66° | — | — |
| 2004 | 79° | 59° | 69° | — | — |
| 2003 | 90° | 65° | 77° | — | — |
| 2002 | 71° | 55° | 63° | — | — |
| 2001 | 76° | 57° | 66° | — | — |
| 2000 | 81° | 59° | 70° | — | — |
| 1999 | 90° | 59° | 74° | — | — |
| 1998 | 71° | 58° | 64° | — | — |
| 1997 | 81° | 59° | 70° | — | — |
| 1996 | 71° | 59° | 65° | — | — |
| 1995 | 76° | 54° | 65° | — | — |
| 1994 | 82° | 54° | 68° | — | — |
| 1993 | 90° | 62° | 76° | — | — |
| 1992 | 77° | 57° | 67° | — | — |
| 1991 | 76° | 57° | 66° | — | — |
| 1990 | 73° | 59° | 66° | — | — |
| 1989 | 82° | 59° | 71° | — | — |
| 1988warmest | 93° | 62° | 78° | — | — |
| 1987 | 78° | 62° | 70° | — | — |
| 1986 | 75° | 60° | 68° | — | — |
| 1985 | 71° | 60° | 66° | — | — |
| 1984 | 75° | 58° | 66° | — | — |
| 1983 | 74° | 59° | 66° | — | — |
| 1982 | 67° | 60° | 63° | — | — |
| 1981 | 78° | 56° | 67° | — | — |
| 1980 | 72° | 60° | 66° | — | — |
| 1979 | 79° | 58° | 68° | — | — |
| 1978 | 77° | 63° | 70° | — | — |
| 1977 | 81° | 59° | 70° | — | — |
| 1976 | 80° | 59° | 70° | — | — |
| 1975coldest | 70° | 56° | 63° | — | — |
| 1974 | 77° | 60° | 69° | — | — |
| 1973 | 73° | 59° | 66° | — | — |
| 1972 | 78° | 58° | 68° | — | — |
| 1971 | 78° | 61° | 69° | — | — |
55 years of data from MOFFETT FED AIRFIELD