Weather on May 18
Newport Beach, CA
55 Years of Data
Avg High
67°F
Avg Low
58°F
Warmest
2008
70°F avg
Coldest
1991
55°F avg
About This Date
May 18th in Newport Beach, CA typically brings mild spring weather, with average highs around 67°F and lows near 58°F. Over 55 years of records, the warmest May 18th was in 2008 (70°F average), while the coldest was 1991 (55°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 18th dates historically. 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 May 18th in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 58° | 62° | — | — |
| 2024 | 65° | 60° | 62° | — | — |
| 2023 | 63° | 58° | 60° | — | — |
| 2022 | 65° | 59° | 62° | — | — |
| 2021 | 67° | 61° | 64° | — | — |
| 2020 | 67° | 62° | 64° | 0.25" | — |
| 2019 | 64° | 55° | 60° | — | — |
| 2018 | 63° | 60° | 61° | — | — |
| 2017 | 66° | 57° | 62° | — | — |
| 2016 | 71° | 61° | 66° | — | — |
| 2015 | 65° | 59° | 62° | — | — |
| 2014 | 67° | 62° | 64° | — | — |
| 2013 | 67° | 60° | 63° | — | — |
| 2012 | 66° | 59° | 63° | — | — |
| 2011 | 62° | 54° | 58° | 0.43" | — |
| 2010 | 71° | 58° | 64° | 0.05" | — |
| 2009 | 66° | 61° | 63° | — | — |
| 2008warmest | 75° | 64° | 70° | — | — |
| 2007 | 64° | 57° | 61° | — | — |
| 2006 | 65° | 60° | 62° | — | — |
| 2005 | 68° | 58° | 63° | — | — |
| 2004 | 69° | 62° | 66° | — | — |
| 2003 | 67° | 60° | 63° | — | — |
| 2002 | 63° | 60° | 61° | — | — |
| 2001 | 64° | 61° | 62° | — | — |
| 2000 | 65° | 55° | 60° | — | — |
| 1999 | 73° | 54° | 63° | — | — |
| 1998 | 75° | 53° | 64° | — | — |
| 1997 | 68° | 64° | 66° | — | — |
| 1996 | 68° | 59° | 64° | — | — |
| 1995 | 62° | 56° | 59° | — | — |
| 1994 | 60° | 52° | 56° | — | — |
| 1993 | 65° | 58° | 61° | — | — |
| 1992 | 66° | 60° | 63° | — | — |
| 1991coldest | 58° | 52° | 55° | — | — |
| 1990 | 63° | 56° | 59° | — | — |
| 1989 | 63° | 59° | 61° | — | — |
| 1988 | 63° | 57° | 60° | — | — |
| 1987 | 65° | 62° | 63° | — | — |
| 1986 | 69° | 59° | 64° | — | — |
| 1985 | 67° | 54° | 60° | — | — |
| 1984 | 74° | 56° | 65° | — | — |
| 1983 | 78° | 56° | 67° | — | — |
| 1982 | 67° | 61° | 64° | — | — |
| 1981 | 70° | 59° | 64° | — | — |
| 1980 | 65° | 59° | 62° | — | — |
| 1979 | 65° | 56° | 60° | — | — |
| 1978 | 76° | 60° | 68° | — | — |
| 1977 | 66° | 52° | 59° | — | — |
| 1976 | 65° | 58° | 61° | — | — |
| 1975 | 63° | 57° | 60° | — | — |
| 1974 | 62° | 55° | 59° | — | — |
| 1973 | 62° | 58° | 60° | — | — |
| 1972 | 65° | 52° | 58° | — | — |
| 1971 | 75° | — | — | — | — |
55 years of data from NEWPORT BEACH HARBOR