Weather on January 21
San Diego, CA
55 Years of Data
About This Date
January 21st in San Diego, CA typically brings mild winter weather, with average highs around 65°F and lows near 50°F. Over 56 years of records, the warmest January 21st was in 1976 (71°F average), while the coldest was 1973 (51°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 20% of January 21st dates historically, with the wettest January 21st recording 1.88" 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 January 21st in San Diego, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 63° | 52° | 57° | — | — |
| 2025 | 71° | 43° | 57° | — | — |
| 2024 | 62° | 56° | 59° | 0.66" | — |
| 2023 | 63° | 41° | 52° | — | — |
| 2022 | 62° | 45° | 53° | — | — |
| 2021 | 69° | 55° | 62° | — | — |
| 2020 | 63° | 54° | 58° | 0.64" | — |
| 2019 | 63° | 54° | 58° | — | — |
| 2018 | 63° | 48° | 55° | — | — |
| 2017 | 61° | 53° | 57° | 0.08" | — |
| 2016 | 70° | 53° | 61° | — | — |
| 2015 | 67° | 57° | 62° | — | — |
| 2014 | 77° | 52° | 64° | — | — |
| 2013 | 76° | 45° | 60° | — | — |
| 2012 | 62° | 51° | 57° | 0.23" | — |
| 2011 | 74° | 50° | 62° | — | — |
| 2010 | 62° | 52° | 57° | 1.88" | — |
| 2009 | 72° | 58° | 65° | — | — |
| 2008 | 55° | 50° | 53° | 0.25" | — |
| 2007 | 61° | 49° | 55° | — | — |
| 2006 | 62° | 43° | 52° | — | — |
| 2005 | 67° | 56° | 61° | — | — |
| 2004 | 67° | 52° | 59° | — | — |
| 2003 | 66° | 54° | 60° | — | — |
| 2002 | 64° | 44° | 54° | — | — |
| 2001 | 69° | 47° | 58° | — | — |
| 2000 | 62° | 56° | 59° | — | — |
| 1999 | 63° | 54° | 58° | 0.18" | — |
| 1998 | 63° | 50° | 56° | — | — |
| 1997 | 60° | 50° | 55° | 0.03" | — |
| 1996 | 62° | 48° | 55° | 0.56" | — |
| 1995 | 60° | 51° | 56° | 0.89" | — |
| 1994 | 67° | 47° | 57° | — | — |
| 1993 | 64° | 49° | 56° | — | — |
| 1992 | 63° | 46° | 54° | — | — |
| 1991 | 63° | 50° | 56° | — | — |
| 1990 | 69° | 44° | 57° | — | — |
| 1989 | 75° | 54° | 64° | — | — |
| 1988 | 61° | 42° | 51° | — | — |
| 1987 | 63° | 41° | 52° | — | — |
| 1986 | 64° | 53° | 59° | — | — |
| 1985 | 60° | 57° | 59° | — | — |
| 1984 | 65° | 50° | 57° | — | — |
| 1983 | 62° | 48° | 55° | — | — |
| 1982 | 58° | 53° | 55° | 0.69" | — |
| 1981 | 72° | 55° | 63° | — | — |
| 1980 | 67° | 45° | 56° | — | — |
| 1979 | 62° | 51° | 57° | — | — |
| 1978 | 68° | 50° | 59° | — | — |
| 1977 | 68° | 60° | 64° | — | — |
| 1976warmest | 81° | 62° | 71° | — | — |
| 1975 | 61° | 45° | 53° | — | — |
| 1974 | 62° | 51° | 57° | — | — |
| 1973coldest | 59° | 43° | 51° | — | — |
| 1972 | 60° | 50° | 55° | — | — |
| 1971 | 56° | 54° | 55° | — | — |
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.