Weather on March 18
Oceanside, CA
55 Years of Data
About This Date
March 18th in Oceanside, CA typically brings mild spring weather, with average highs around 66°F and lows near 47°F. Over 56 years of records, the warmest March 18th was in 1978 (69°F average), while the coldest was 1999 (50°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 23% of March 18th dates historically, with the wettest March 18th recording 3.38" 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 March 18th in Oceanside, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 83° | 50° | 66° | — | — |
| 2025 | 63° | 43° | 53° | — | — |
| 2024 | 70° | 42° | 56° | 0.1" | — |
| 2023 | 74° | 45° | 59° | — | — |
| 2022 | 72° | 40° | 56° | — | — |
| 2021 | 62° | 39° | 51° | — | — |
| 2020 | 60° | 43° | 51° | 0.64" | — |
| 2019 | 71° | 43° | 57° | — | — |
| 2018 | 61° | 41° | 51° | — | — |
| 2017 | 69° | 52° | 60° | — | — |
| 2016 | 68° | 54° | 61° | — | — |
| 2015 | 72° | 61° | 66° | — | — |
| 2014 | 71° | 50° | 61° | — | — |
| 2013 | 64° | 49° | 56° | — | — |
| 2012 | 57° | 47° | 52° | 0.15" | — |
| 2011 | 65° | 39° | 52° | 0.03" | — |
| 2010 | 66° | 42° | 54° | — | — |
| 2009 | 72° | 41° | 56° | — | — |
| 2008 | 66° | 38° | 52° | — | — |
| 2007 | 66° | 57° | 62° | — | — |
| 2006 | 59° | 45° | 52° | 0.08" | — |
| 2005 | 65° | 51° | 58° | 0.28" | — |
| 2004 | 64° | 54° | 59° | — | — |
| 2003 | 63° | 44° | 53° | — | — |
| 2002 | 61° | 40° | 50° | 0.13" | — |
| 2001 | 71° | 44° | 58° | — | — |
| 2000 | 69° | 49° | 59° | 0.03" | — |
| 1999coldest | 58° | 42° | 50° | — | — |
| 1998 | 64° | 55° | 60° | — | — |
| 1997 | 67° | 49° | 58° | — | — |
| 1996 | 59° | 55° | 57° | — | — |
| 1995 | 64° | 58° | 61° | — | — |
| 1994 | 76° | 54° | 65° | — | — |
| 1993 | 63° | 58° | 60° | — | — |
| 1992 | 62° | 48° | 55° | — | — |
| 1991 | 61° | 41° | 51° | — | — |
| 1990 | 61° | 43° | 52° | — | — |
| 1989 | 60° | 45° | 52° | — | — |
| 1988 | 65° | 44° | 54° | — | — |
| 1987 | 60° | 45° | 52° | — | — |
| 1986 | 62° | 44° | 53° | — | — |
| 1985 | 58° | 45° | 51° | 0.18" | — |
| 1984 | 68° | 46° | 57° | — | — |
| 1983 | 62° | 54° | 58° | 1.35" | — |
| 1982 | 64° | 45° | 54° | 3.38" | — |
| 1981 | 64° | 48° | 56° | — | — |
| 1980 | 66° | 44° | 55° | 0.2" | — |
| 1979 | 60° | 47° | 53° | 1.52" | — |
| 1978warmest | 90° | 49° | 69° | — | — |
| 1977 | 63° | 45° | 54° | — | — |
| 1976 | 65° | 49° | 57° | — | — |
| 1975 | 66° | 49° | 57° | — | — |
| 1974 | 65° | 52° | 58° | — | — |
| 1973 | 65° | 43° | 54° | — | — |
| 1972 | 64° | 54° | 59° | — | — |
| 1971 | 64° | 48° | 56° | — | — |
Oceanside, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Oceanside, CA Monthly Precipitation
Average rainfall per month, in inches.
Oceanside, 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 Oceanside, CA
Most pleasant months in Oceanside, CA: June, July.