Weather on October 20
San Diego, CA
55 Years of Data
Avg High
73°F
Avg Low
61°F
Warmest
2016
77°F avg
Coldest
2021
61°F avg
About This Date
October 20th in San Diego, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 61°F. Over 55 years of records, the warmest October 20th was in 2016 (77°F average), while the coldest was 2021 (61°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 16% of October 20th dates historically, with the wettest October 20th recording 2.41" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in San Diego, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 54° | 65° | — | — |
| 2024 | 80° | 55° | 68° | — | — |
| 2023 | 79° | 64° | 71° | — | — |
| 2022 | 80° | 62° | 71° | — | — |
| 2021coldest | 70° | 53° | 61° | — | — |
| 2020 | 74° | 67° | 70° | — | — |
| 2019 | 75° | 57° | 66° | — | — |
| 2018 | 86° | 63° | 74° | — | — |
| 2017 | 71° | 65° | 68° | — | — |
| 2016warmest | 91° | 62° | 77° | — | — |
| 2015 | 76° | 66° | 71° | — | — |
| 2014 | 73° | 66° | 70° | — | — |
| 2013 | 70° | 56° | 63° | — | — |
| 2012 | 69° | 64° | 67° | 0.05" | — |
| 2011 | 66° | 61° | 63° | — | — |
| 2010 | 68° | 62° | 65° | 0.25" | — |
| 2009 | 71° | 62° | 67° | — | — |
| 2008 | 68° | 59° | 64° | — | — |
| 2007 | 69° | 59° | 64° | — | — |
| 2006 | 80° | 58° | 69° | — | — |
| 2005 | 69° | 61° | 65° | — | — |
| 2004 | 69° | 60° | 65° | 2.41" | — |
| 2003 | 82° | 63° | 72° | — | — |
| 2002 | 69° | 57° | 63° | — | — |
| 2001 | 69° | 62° | 66° | — | — |
| 2000 | 69° | 63° | 66° | — | — |
| 1999 | 89° | 59° | 74° | — | — |
| 1998 | 71° | 56° | 63° | — | — |
| 1997 | 70° | 64° | 67° | — | — |
| 1996 | 69° | 59° | 64° | — | — |
| 1995 | 71° | 61° | 66° | — | — |
| 1994 | 71° | 56° | 63° | — | — |
| 1993 | 79° | 55° | 67° | — | — |
| 1992 | 72° | 60° | 66° | — | — |
| 1991 | 67° | 59° | 63° | — | — |
| 1990 | 76° | 62° | 69° | — | — |
| 1989 | 73° | 64° | 69° | — | — |
| 1988 | 66° | 64° | 65° | — | — |
| 1987 | 72° | 62° | 67° | — | — |
| 1986 | 69° | 55° | 62° | — | — |
| 1985 | 71° | 61° | 66° | — | — |
| 1984 | 69° | 62° | 66° | — | — |
| 1983 | 73° | 67° | 70° | — | — |
| 1982 | 80° | 62° | 71° | — | — |
| 1981 | 73° | 61° | 67° | — | — |
| 1980 | 84° | 58° | 71° | — | — |
| 1979 | 69° | 61° | 65° | 1.5" | — |
| 1978 | 77° | 68° | 73° | 0.13" | — |
| 1977 | 69° | 62° | 66° | 0.1" | — |
| 1976 | 76° | 70° | 73° | 0.15" | — |
| 1975 | 71° | 60° | 66° | 0.08" | — |
| 1974 | 70° | 63° | 66° | — | — |
| 1973 | 72° | 61° | 66° | — | — |
| 1972 | 67° | 60° | 63° | 0.05" | — |
| 1971 | 70° | 54° | 62° | — | — |
55 years of data from SAN DIEGO INTL AP