Weather on September 1
Newport Beach, CA
55 Years of Data
Avg High
75°F
Avg Low
65°F
Warmest
1998
82°F avg
Coldest
1975
64°F avg
About This Date
September 1st in Newport Beach, CA typically brings pleasant fall weather, with average highs around 75°F and lows near 65°F. Over 55 years of records, the warmest September 1st was in 1998 (82°F average), while the coldest was 1975 (64°F) — a 18°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 September 1st in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 68° | 73° | — | — |
| 2024 | 71° | 67° | 69° | — | — |
| 2023 | 73° | 67° | 70° | — | — |
| 2022 | 76° | 67° | 71° | — | — |
| 2021 | 72° | 65° | 68° | — | — |
| 2020 | 75° | 64° | 70° | — | — |
| 2019 | 77° | 69° | 73° | — | — |
| 2018 | 74° | 68° | 71° | — | — |
| 2017 | 83° | 69° | 76° | — | — |
| 2016 | 75° | 66° | 71° | — | — |
| 2015 | 73° | 70° | 71° | — | — |
| 2014 | 77° | 68° | 73° | — | — |
| 2013 | 79° | 70° | 74° | — | — |
| 2012 | 74° | 64° | 69° | — | — |
| 2011 | 70° | 62° | 66° | — | — |
| 2010 | 80° | 62° | 71° | — | — |
| 2009 | 86° | 71° | 79° | — | — |
| 2008 | 72° | 66° | 69° | — | — |
| 2007 | 79° | 67° | 73° | — | — |
| 2006 | 74° | 66° | 70° | — | — |
| 2005 | 73° | 63° | 68° | — | — |
| 2004 | 78° | 62° | 70° | — | — |
| 2003 | 74° | 67° | 70° | — | — |
| 2002 | 77° | 68° | 73° | — | — |
| 2001 | 71° | 67° | 69° | — | — |
| 2000 | 68° | 65° | 66° | — | — |
| 1999 | 76° | 64° | 70° | — | — |
| 1998warmest | 92° | 73° | 82° | — | — |
| 1997 | 73° | 67° | 70° | — | — |
| 1996 | 74° | 67° | 70° | — | — |
| 1995 | 73° | 63° | 68° | — | — |
| 1994 | 71° | 66° | 69° | — | — |
| 1993 | 72° | 65° | 68° | — | — |
| 1992 | 69° | 64° | 67° | — | — |
| 1991 | 67° | 63° | 65° | — | — |
| 1990 | 71° | 64° | 68° | — | — |
| 1989 | 68° | 60° | 64° | — | — |
| 1988 | 67° | 61° | 64° | — | — |
| 1987 | 99° | 63° | 81° | — | — |
| 1986 | 72° | 65° | 68° | — | — |
| 1985 | 78° | 68° | 73° | — | — |
| 1984 | 79° | 69° | 74° | — | — |
| 1983 | 79° | 66° | 72° | — | — |
| 1982 | 78° | 65° | 71° | — | — |
| 1981 | 72° | 65° | 68° | — | — |
| 1980 | 72° | 62° | 67° | — | — |
| 1979 | 74° | 67° | 70° | — | — |
| 1978 | 73° | 65° | 69° | — | — |
| 1977 | 75° | 62° | 69° | — | — |
| 1976 | 75° | 66° | 71° | — | — |
| 1975coldest | 67° | 61° | 64° | — | — |
| 1974 | 71° | 62° | 67° | — | — |
| 1973 | 68° | 62° | 65° | — | — |
| 1972 | 72° | 66° | 69° | — | — |
| 1971 | 74° | 62° | 68° | — | — |
55 years of data from NEWPORT BEACH HARBOR