Weather on September 1
Chula Vista, CA
55 Years of Data
Avg High
77°F
Avg Low
65°F
Warmest
2025
79°F avg
Coldest
1999
54°F avg
About This Date
September 1st in Chula Vista, CA typically brings pleasant fall weather, with average highs around 77°F and lows near 65°F. Over 55 years of records, the warmest September 1st was in 2025 (79°F average), while the coldest was 1999 (54°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Chula Vista, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 89° | 70° | 79° | — | — |
| 2024 | 73° | 67° | 70° | — | — |
| 2023 | 76° | 67° | 71° | — | — |
| 2022 | 82° | 68° | 75° | — | — |
| 2021 | 76° | 67° | 71° | — | — |
| 2020 | 76° | 68° | 72° | — | — |
| 2019 | 78° | 70° | 74° | — | — |
| 2018 | 75° | 66° | 71° | — | — |
| 2017 | 88° | 67° | 77° | — | — |
| 2016 | 75° | 68° | 72° | — | — |
| 2015 | 78° | 67° | 72° | — | — |
| 2014 | 76° | 67° | 71° | — | — |
| 2013 | 82° | 72° | 77° | — | — |
| 2012 | 87° | 64° | 76° | — | — |
| 2011 | 73° | 63° | 68° | — | — |
| 2010 | 73° | 59° | 66° | — | — |
| 2009 | 82° | 67° | 74° | — | — |
| 2008 | 76° | 69° | 72° | — | — |
| 2007 | 85° | 71° | 78° | — | — |
| 2006 | 81° | 60° | 70° | — | — |
| 2005 | 74° | 70° | 72° | — | — |
| 2004 | 83° | 59° | 71° | — | — |
| 2003 | 76° | 64° | 70° | — | — |
| 2002 | 92° | 65° | 78° | — | — |
| 2001 | 77° | 61° | 69° | — | — |
| 2000 | 76° | 60° | 68° | — | — |
| 1999coldest | 63° | 45° | 54° | — | — |
| 1998 | 82° | 73° | 78° | — | — |
| 1997 | 80° | 66° | 73° | — | — |
| 1996 | 78° | 67° | 72° | — | — |
| 1995 | 83° | 67° | 75° | — | — |
| 1994 | 75° | 65° | 70° | — | — |
| 1993 | 76° | 67° | 71° | — | — |
| 1992 | 75° | 66° | 71° | — | — |
| 1991 | 74° | 65° | 69° | — | — |
| 1990 | 76° | 67° | 71° | — | — |
| 1989 | 79° | 56° | 67° | — | — |
| 1988 | 77° | 67° | 72° | — | — |
| 1987 | 83° | 65° | 74° | — | — |
| 1986 | 74° | 64° | 69° | — | — |
| 1985 | 82° | 69° | 76° | — | — |
| 1984 | 79° | 67° | 73° | — | — |
| 1983 | 89° | 65° | 77° | — | — |
| 1982 | 85° | 64° | 74° | — | — |
| 1981 | 72° | 64° | 68° | — | — |
| 1980 | 70° | 65° | 67° | — | — |
| 1979 | 74° | 64° | 69° | — | — |
| 1978 | 72° | 66° | 69° | — | — |
| 1977 | 72° | 64° | 68° | — | — |
| 1976 | 73° | 65° | 69° | — | — |
| 1975 | 70° | 60° | 65° | — | — |
| 1974 | 70° | 61° | 65° | — | — |
| 1973 | 68° | 60° | 64° | — | — |
| 1972 | 76° | 69° | 72° | — | — |
| 1971 | 73° | 63° | 68° | — | — |
55 years of data from CHULA VISTA