Weather on September 1
San Diego, CA
55 Years of Data
About This Date
September 1st in San Diego, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 67°F. Over 55 years of records, the warmest September 1st was in 1983 (80°F average), while the coldest was 1999 (65°F) — a 15°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in San Diego, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 68° | 74° | — | — |
| 2024 | 75° | 69° | 72° | — | — |
| 2023 | 76° | 69° | 72° | — | — |
| 2022 | 85° | 70° | 77° | — | — |
| 2021 | 77° | 70° | 73° | — | — |
| 2020 | 78° | 68° | 73° | — | — |
| 2019 | 79° | 70° | 74° | — | — |
| 2018 | 75° | 67° | 71° | — | — |
| 2017 | 89° | 69° | 79° | — | — |
| 2016 | 72° | 64° | 68° | — | — |
| 2015 | 77° | 70° | 73° | — | — |
| 2014 | 75° | 68° | 72° | — | — |
| 2013 | 80° | 70° | 75° | — | — |
| 2012 | 83° | 68° | 75° | — | — |
| 2011 | 74° | 65° | 69° | — | — |
| 2010 | 72° | 62° | 67° | — | — |
| 2009 | 84° | 71° | 78° | — | — |
| 2008 | 75° | 69° | 72° | — | — |
| 2007 | 85° | 72° | 78° | — | — |
| 2006 | 76° | 65° | 70° | — | — |
| 2005 | 74° | 65° | 69° | — | — |
| 2004 | 78° | 66° | 72° | — | — |
| 2003 | 73° | 67° | 70° | — | — |
| 2002 | 91° | 68° | 80° | — | — |
| 2001 | 75° | 65° | 70° | — | — |
| 2000 | 75° | 64° | 70° | — | — |
| 1999coldest | 68° | 62° | 65° | — | — |
| 1998 | 83° | 72° | 77° | — | — |
| 1997 | 80° | 68° | 74° | — | — |
| 1996 | 78° | 70° | 74° | — | — |
| 1995 | 81° | 67° | 74° | — | — |
| 1994 | 76° | 66° | 71° | — | — |
| 1993 | 76° | 67° | 71° | — | — |
| 1992 | 75° | 67° | 71° | — | — |
| 1991 | 77° | 65° | 71° | — | — |
| 1990 | 77° | 67° | 72° | — | — |
| 1989 | 76° | 60° | 68° | — | — |
| 1988 | 75° | 67° | 71° | — | — |
| 1987 | 85° | 66° | 75° | — | — |
| 1986 | 74° | 66° | 70° | — | — |
| 1985 | 78° | 69° | 74° | — | — |
| 1984 | 76° | 72° | 74° | — | — |
| 1983warmest | 88° | 73° | 80° | — | — |
| 1982 | 86° | 68° | 77° | — | — |
| 1981 | 78° | 68° | 73° | — | — |
| 1980 | 76° | 67° | 71° | — | — |
| 1979 | 77° | 69° | 73° | — | — |
| 1978 | 77° | 69° | 73° | — | — |
| 1977 | 76° | 69° | 72° | — | — |
| 1976 | 75° | 69° | 72° | — | — |
| 1975 | 74° | 65° | 69° | — | — |
| 1974 | 76° | 64° | 70° | — | — |
| 1973 | 72° | 64° | 68° | — | — |
| 1972 | 77° | 68° | 73° | — | — |
| 1971 | 75° | 68° | 72° | — | — |
San Diego, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Diego, CA Monthly Precipitation
Average rainfall per month, in inches.
San Diego, 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 San Diego, CA
Most pleasant months in San Diego, CA: June.