Weather on August 25
Sunnyvale, CA
55 Years of Data
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.
| 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° | — | — |
Sunnyvale, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Sunnyvale, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Sunnyvale, 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 Sunnyvale, CA
Sunnyvale, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.