Weather on May 23
San Marcos, CA
55 Years of Data
About This Date
May 23rd in San Marcos, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 56°F. Over 56 years of records, the warmest May 23rd was in 2001 (77°F average), while the coldest was 2008 (55°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 23rd dates historically. The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for May 23rd in San Marcos, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 68° | 61° | 64° | — | — |
| 2025 | 81° | 59° | 70° | — | — |
| 2024 | 71° | 58° | 64° | — | — |
| 2023 | 64° | 58° | 61° | 0.03" | — |
| 2022 | 76° | 58° | 67° | — | — |
| 2021 | 76° | 49° | 62° | — | — |
| 2020 | 76° | 60° | 68° | — | — |
| 2019 | 65° | 54° | 59° | 0.05" | — |
| 2018 | 72° | 57° | 64° | — | — |
| 2017 | 88° | 58° | 73° | — | — |
| 2016 | 72° | 53° | 62° | — | — |
| 2015 | 69° | 57° | 63° | 0.15" | — |
| 2014 | 74° | 60° | 67° | — | — |
| 2013 | 71° | 56° | 63° | — | — |
| 2012 | 74° | 57° | 65° | — | — |
| 2011 | 68° | 56° | 62° | — | — |
| 2010 | 59° | 53° | 56° | — | — |
| 2009 | 65° | 59° | 62° | — | — |
| 2008coldest | 59° | 52° | 55° | 0.3" | — |
| 2007 | 67° | 59° | 63° | — | — |
| 2006 | 71° | 56° | 63° | — | — |
| 2005 | 91° | 57° | 74° | — | — |
| 2004 | 67° | 60° | 63° | — | — |
| 2003 | 65° | 58° | 61° | — | — |
| 2002 | 76° | 48° | 62° | — | — |
| 2001warmest | 97° | 58° | 77° | — | — |
| 2000 | 80° | 60° | 70° | — | — |
| 1999 | 73° | 51° | 62° | — | — |
| 1998 | 74° | 55° | 64° | — | — |
| 1997 | 83° | 60° | 71° | — | — |
| 1996 | 76° | 54° | 65° | — | — |
| 1995 | 63° | 53° | 58° | 0.25" | — |
| 1994 | 76° | 55° | 65° | — | — |
| 1993 | 76° | 60° | 68° | — | — |
| 1992 | 81° | 60° | 70° | 0.46" | — |
| 1991 | 77° | 56° | 66° | — | — |
| 1990 | 82° | 57° | 70° | — | — |
| 1989 | 89° | 52° | 70° | — | — |
| 1988 | 83° | 56° | 69° | — | — |
| 1987 | 71° | 64° | 68° | — | — |
| 1986 | 75° | 56° | 65° | — | — |
| 1985 | 84° | 57° | 71° | — | — |
| 1984 | 78° | 57° | 68° | — | — |
| 1983 | 80° | 57° | 69° | — | — |
| 1982 | 78° | 58° | 68° | — | — |
| 1981 | 78° | 55° | 67° | — | — |
| 1980 | 69° | 51° | 60° | — | — |
| 1979 | 86° | 55° | 71° | — | — |
| 1978 | 69° | 55° | 62° | — | — |
| 1977 | 65° | 54° | 59° | — | — |
| 1976 | 78° | 51° | 65° | — | — |
| 1975 | 77° | 47° | 62° | — | — |
| 1974 | 79° | 49° | 64° | — | — |
| 1973 | 78° | 48° | 63° | — | — |
| 1972 | 77° | 51° | 64° | — | — |
| 1971 | 74° | 44° | 59° | — | — |
San Marcos, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Marcos, CA Monthly Precipitation
Average rainfall per month, in inches.
San Marcos, 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 Marcos, CA
Most pleasant months in San Marcos, CA: June.