Weather on May 31
Newport Beach, CA
55 Years of Data
Avg High
67°F
Avg Low
59°F
Warmest
1981
70°F avg
Coldest
1991
57°F avg
About This Date
May 31st in Newport Beach, CA typically brings mild spring weather, with average highs around 67°F and lows near 59°F. Over 55 years of records, the warmest May 31st was in 1981 (70°F average), while the coldest was 1991 (57°F) — a 13°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in Newport Beach, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 63° | 67° | — | — |
| 2024 | 65° | 58° | 61° | — | — |
| 2023 | 65° | 59° | 62° | — | — |
| 2022 | 68° | 60° | 64° | — | — |
| 2021 | 65° | 60° | 62° | — | — |
| 2020 | 69° | 59° | 64° | — | — |
| 2019 | 64° | 59° | 62° | — | — |
| 2018 | 66° | 61° | 63° | — | — |
| 2017 | 65° | 60° | 62° | — | — |
| 2016 | 66° | 60° | 63° | — | — |
| 2015 | 65° | 61° | 63° | — | — |
| 2014 | 70° | 61° | 65° | — | — |
| 2013 | 69° | 63° | 66° | — | — |
| 2012 | 67° | 61° | 64° | — | — |
| 2011 | 64° | 52° | 58° | — | — |
| 2010 | 73° | 61° | 67° | — | — |
| 2009 | 64° | 59° | 62° | — | — |
| 2008 | 67° | 60° | 63° | — | — |
| 2007 | 66° | 58° | 62° | — | — |
| 2006 | 71° | 60° | 66° | — | — |
| 2005 | 67° | 61° | 64° | — | — |
| 2004 | 74° | 61° | 67° | — | — |
| 2003 | 66° | 62° | 64° | — | — |
| 2002 | 66° | 62° | 64° | — | — |
| 2001 | 64° | 60° | 62° | — | — |
| 2000 | 65° | 59° | 62° | — | — |
| 1999 | 72° | 57° | 64° | — | — |
| 1998 | 81° | 59° | 70° | — | — |
| 1997 | 70° | 64° | 67° | — | — |
| 1996 | 64° | 57° | 61° | — | — |
| 1995 | 62° | 58° | 60° | — | — |
| 1994 | 65° | 58° | 61° | — | — |
| 1993 | 67° | 59° | 63° | — | — |
| 1992 | 67° | 63° | 65° | — | — |
| 1991coldest | 61° | 53° | 57° | — | — |
| 1990 | 63° | 56° | 59° | — | — |
| 1989 | 65° | 55° | 60° | — | — |
| 1988 | 63° | 53° | 58° | — | — |
| 1987 | 66° | 57° | 62° | — | — |
| 1986 | 66° | 60° | 63° | — | — |
| 1985 | 67° | 60° | 63° | — | — |
| 1984 | 73° | 64° | 69° | — | — |
| 1983 | 68° | 62° | 65° | — | — |
| 1982 | 66° | 56° | 61° | — | — |
| 1981warmest | 72° | 68° | 70° | — | — |
| 1980 | 64° | 55° | 60° | — | — |
| 1979 | 66° | 60° | 63° | — | — |
| 1978 | 69° | 61° | 65° | — | — |
| 1977 | 66° | 61° | 63° | — | — |
| 1976 | 67° | 57° | 62° | — | — |
| 1975 | 63° | 57° | 60° | — | — |
| 1974 | 66° | 59° | 63° | — | — |
| 1973 | 67° | 59° | 63° | — | — |
| 1972 | 70° | 61° | 65° | — | — |
| 1971 | 66° | 55° | 61° | — | — |
55 years of data from NEWPORT BEACH HARBOR