Weather on October 21
Oceanside, CA
55 Years of Data
Avg High
73°F
Avg Low
54°F
Warmest
2019
72°F avg
Coldest
2008
57°F avg
About This Date
October 21st in Oceanside, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 54°F. Over 54 years of records, the warmest October 21st was in 2019 (72°F average), while the coldest was 2008 (57°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 9% of October 21st dates historically, with the wettest October 21st recording 0.51" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 21st in Oceanside, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 45° | 59° | — | — |
| 2024 | 79° | 45° | 62° | — | — |
| 2023 | 79° | 53° | 66° | — | — |
| 2022 | 76° | 65° | 70° | — | — |
| 2021 | 72° | 44° | 58° | — | — |
| 2020 | 74° | 64° | 69° | — | — |
| 2019warmest | 93° | 51° | 72° | — | — |
| 2018 | 74° | 46° | 60° | — | — |
| 2017 | 74° | 52° | 63° | — | — |
| 2016 | 88° | 51° | 69° | — | — |
| 2015 | 78° | 56° | 67° | — | — |
| 2014 | 76° | 57° | 66° | — | — |
| 2013 | 71° | 51° | 61° | — | — |
| 2012 | 72° | 63° | 67° | 0.2" | — |
| 2011 | 70° | 52° | 61° | — | — |
| 2010 | 66° | 60° | 63° | 0.51" | — |
| 2009 | 75° | 47° | 61° | — | — |
| 2008coldest | 68° | 46° | 57° | 0.03" | — |
| 2007 | 88° | 48° | 68° | — | — |
| 2006 | 74° | 44° | 59° | — | — |
| 2005 | 67° | 61° | 64° | — | — |
| 2004 | 66° | 53° | 60° | — | — |
| 2003 | 89° | 51° | 70° | — | — |
| 2002 | 69° | 58° | 63° | — | — |
| 2001 | 71° | 59° | 65° | — | — |
| 2000 | 70° | 56° | 63° | — | — |
| 1999 | 90° | 47° | 68° | — | — |
| 1998 | 67° | 55° | 61° | — | — |
| 1997 | 68° | 65° | 66° | — | — |
| 1996 | 83° | 49° | 66° | — | — |
| 1995 | 67° | 61° | 64° | — | — |
| 1994 | 67° | 50° | 58° | — | — |
| 1993 | 74° | 51° | 62° | — | — |
| 1992 | 70° | 65° | 67° | — | — |
| 1991 | 69° | 63° | 66° | — | — |
| 1990 | 82° | 52° | 67° | — | — |
| 1989 | 69° | 60° | 65° | — | — |
| 1988 | 67° | 63° | 65° | — | — |
| 1987 | 68° | 55° | 62° | — | — |
| 1986 | 75° | 52° | 63° | — | — |
| 1985 | 66° | 60° | 63° | — | — |
| 1984 | 69° | 51° | 60° | — | — |
| 1983 | 72° | 60° | 66° | — | — |
| 1982 | 71° | 61° | 66° | — | — |
| 1981 | 70° | 55° | 62° | — | — |
| 1980 | 73° | 54° | 63° | — | — |
| 1979 | 66° | 54° | 60° | — | — |
| 1978 | 70° | 59° | 64° | — | — |
| 1977 | 68° | 57° | 63° | — | — |
| 1976 | 78° | 55° | 67° | 0.51" | — |
| 1975 | 72° | 54° | 63° | — | — |
| 1974 | 70° | 57° | 63° | — | — |
| 1972 | 73° | 50° | 62° | 0.33" | — |
| 1971 | 75° | 48° | 62° | — | — |
54 years of data from OCEANSIDE MUNI AP