Weather on August 27
Hayward, CA
55 Years of Data
Avg High
78°F
Avg Low
57°F
Warmest
1993
82°F avg
Coldest
1975
58°F avg
About This Date
August 27th in Hayward, CA typically brings pleasant summer weather, with average highs around 78°F and lows near 57°F. Over 53 years of records, the warmest August 27th was in 1993 (82°F average), while the coldest was 1975 (58°F) — a 24°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for August 27th in Hayward, CA? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 60° | 68° | — | — |
| 2024 | 96° | 61° | 78° | — | — |
| 2023 | 76° | 61° | 68° | — | — |
| 2022 | 78° | 59° | 69° | — | — |
| 2021 | 92° | 59° | 75° | — | — |
| 2020 | 74° | 58° | 66° | — | — |
| 2019 | 83° | 58° | 70° | — | — |
| 2018 | 73° | 60° | 67° | — | — |
| 2017 | 88° | 62° | 75° | — | — |
| 2016 | 73° | 62° | 68° | — | — |
| 2015 | 87° | 61° | 74° | — | — |
| 2014 | 82° | 61° | 71° | — | — |
| 2013 | 73° | 54° | 63° | — | — |
| 2012 | 77° | 59° | 68° | — | — |
| 2011 | 75° | 56° | 65° | — | — |
| 2010 | 67° | 57° | 62° | — | — |
| 2009 | 92° | 55° | 73° | — | — |
| 2008 | 92° | 60° | 76° | — | — |
| 2007 | 78° | 58° | 68° | — | — |
| 2006 | 73° | 57° | 65° | — | — |
| 2005 | 81° | 55° | 68° | — | — |
| 2004 | 90° | 61° | 75° | — | — |
| 2003 | 70° | 59° | 64° | — | — |
| 2002 | 88° | 60° | 74° | — | — |
| 2001 | 82° | 58° | 70° | — | — |
| 2000 | 77° | 56° | 66° | — | — |
| 1999 | 75° | 60° | 68° | — | — |
| 1998 | 88° | 58° | 73° | — | — |
| 1997 | 75° | 58° | 66° | — | — |
| 1996 | 72° | 55° | 63° | — | — |
| 1995 | 67° | 53° | 60° | — | — |
| 1994 | 67° | 52° | 59° | — | — |
| 1993warmest | 95° | 70° | 82° | — | — |
| 1992 | 82° | 51° | 67° | — | — |
| 1989 | 77° | 56° | 66° | — | — |
| 1988 | 90° | 56° | 73° | — | — |
| 1987 | 71° | 56° | 63° | — | — |
| 1986 | 78° | 54° | 66° | — | — |
| 1985 | 74° | 54° | 64° | — | — |
| 1984 | 75° | 58° | 66° | — | — |
| 1983 | 80° | 58° | 69° | — | — |
| 1982 | 68° | 56° | 62° | — | — |
| 1981 | 83° | 54° | 68° | — | — |
| 1980 | 68° | 53° | 61° | — | — |
| 1979 | 81° | 59° | 70° | — | — |
| 1978 | 76° | 58° | 67° | — | — |
| 1977 | 76° | 56° | 66° | — | — |
| 1976 | 82° | 53° | 68° | — | — |
| 1975coldest | 65° | 51° | 58° | — | — |
| 1974 | 76° | 53° | 64° | — | — |
| 1973 | 71° | 51° | 61° | — | — |
| 1972 | 77° | 54° | 65° | — | — |
| 1971 | 71° | 55° | 63° | — | — |
53 years of data from HAYWARD AIR TERMINAL