Weather on September 29
Hayward, CA
55 Years of Data
Avg High
75°F
Avg Low
55°F
Warmest
1999
77°F avg
Coldest
1985
51°F avg
About This Date
September 29th in Hayward, CA typically brings pleasant fall weather, with average highs around 75°F and lows near 55°F. Over 53 years of records, the warmest September 29th was in 1999 (77°F average), while the coldest was 1985 (51°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 6% of September 29th dates historically, with the wettest September 29th recording 1.73" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for September 29th in Hayward, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 63° | 69° | — | — |
| 2024 | 75° | 59° | 67° | — | — |
| 2023 | 68° | 59° | 64° | — | — |
| 2022 | 80° | 59° | 70° | — | — |
| 2021 | 75° | 52° | 63° | — | — |
| 2020 | 81° | 60° | 70° | — | — |
| 2019 | 67° | 48° | 57° | — | — |
| 2018 | 75° | 58° | 66° | — | — |
| 2017 | 69° | 56° | 62° | — | — |
| 2016 | 66° | 56° | 61° | — | — |
| 2015 | 68° | 59° | 64° | — | — |
| 2014 | 73° | 60° | 67° | — | — |
| 2013 | 73° | 54° | 63° | — | — |
| 2012 | 74° | 56° | 65° | — | — |
| 2011 | 76° | 62° | 69° | — | — |
| 2010 | 91° | 62° | 77° | — | — |
| 2009 | 68° | 56° | 62° | — | — |
| 2008 | 70° | 58° | 64° | — | — |
| 2007 | 72° | 47° | 59° | — | — |
| 2006 | 64° | 54° | 59° | — | — |
| 2005 | 87° | 56° | 71° | — | — |
| 2004 | 66° | 58° | 62° | — | — |
| 2003 | 70° | 58° | 64° | — | — |
| 2002 | 70° | 54° | 62° | — | — |
| 2001 | 79° | 53° | 66° | — | — |
| 2000 | 78° | 54° | 66° | — | — |
| 1999warmest | 93° | 61° | 77° | — | — |
| 1998 | 63° | 57° | 60° | — | — |
| 1997 | 87° | 61° | 74° | — | — |
| 1996 | 72° | 51° | 61° | — | — |
| 1995 | 73° | 53° | 63° | — | — |
| 1994 | 70° | 55° | 62° | — | — |
| 1993 | 80° | 59° | 70° | — | — |
| 1992 | 75° | 56° | 65° | — | — |
| 1989 | 69° | 56° | 62° | 0.66" | — |
| 1988 | 85° | 54° | 69° | — | — |
| 1987 | 84° | 54° | 69° | — | — |
| 1986 | 74° | 48° | 61° | — | — |
| 1985coldest | 60° | 42° | 51° | — | — |
| 1984 | 90° | 59° | 74° | — | — |
| 1983 | 73° | 56° | 64° | — | — |
| 1982 | 71° | 52° | 61° | — | — |
| 1981 | 74° | 50° | 62° | — | — |
| 1980 | 76° | 55° | 65° | — | — |
| 1979 | 82° | 54° | 68° | — | — |
| 1978 | 86° | 53° | 70° | — | — |
| 1977 | 72° | 59° | 65° | 0.18" | — |
| 1976 | 63° | 58° | 60° | 1.73" | — |
| 1975 | 76° | 46° | 61° | — | — |
| 1974 | 66° | 52° | 59° | — | — |
| 1973 | 90° | 49° | 69° | — | — |
| 1972 | 76° | 52° | 64° | — | — |
| 1971 | 67° | 47° | 57° | — | — |
53 years of data from HAYWARD AIR TERMINAL