Weather on September 4
Newport Beach, CA
55 Years of Data
Avg High
75°F
Avg Low
65°F
Warmest
2022
86°F avg
Coldest
1973
63°F avg
About This Date
September 4th 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 4th was in 2022 (86°F average), while the coldest was 1973 (63°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 7% of September 4th dates historically, with the wettest September 4th recording 0.61" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for September 4th in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 68° | 71° | — | — |
| 2024 | 78° | 67° | 72° | — | — |
| 2023 | 75° | 65° | 70° | — | — |
| 2022warmest | 97° | 75° | 86° | — | — |
| 2021 | 75° | 62° | 69° | — | — |
| 2020 | 74° | 64° | 69° | — | — |
| 2019 | 78° | 70° | 74° | — | — |
| 2018 | 74° | 70° | 72° | — | — |
| 2017 | 75° | 71° | 73° | — | — |
| 2016 | 72° | 65° | 68° | — | — |
| 2015 | 73° | 67° | 70° | — | — |
| 2014 | 76° | 70° | 73° | — | — |
| 2013 | 76° | 67° | 71° | — | — |
| 2012 | 76° | 65° | 70° | — | — |
| 2011 | 67° | 61° | 64° | — | — |
| 2010 | 86° | 60° | 73° | — | — |
| 2009 | 91° | 71° | 81° | — | — |
| 2008 | 74° | 66° | 70° | — | — |
| 2007 | 83° | 70° | 76° | — | — |
| 2006 | 75° | 67° | 71° | — | — |
| 2005 | 72° | 60° | 66° | 0.03" | — |
| 2004 | 78° | 61° | 69° | — | — |
| 2003 | 75° | 65° | 70° | — | — |
| 2002 | 67° | 69° | 68° | — | — |
| 2001 | 70° | 68° | 69° | — | — |
| 2000 | 68° | 62° | 65° | — | — |
| 1999 | 72° | 63° | 67° | — | — |
| 1998 | 79° | 74° | 76° | 0.61" | — |
| 1997 | 80° | 72° | 76° | — | — |
| 1996 | 71° | 66° | 69° | — | — |
| 1995 | 72° | 63° | 67° | — | — |
| 1994 | 72° | 63° | 67° | — | — |
| 1993 | 70° | 66° | 68° | — | — |
| 1992 | 70° | 62° | 66° | — | — |
| 1991 | 65° | 62° | 63° | — | — |
| 1990 | 71° | 62° | 67° | — | — |
| 1989 | 68° | 59° | 64° | — | — |
| 1988 | 89° | 65° | 77° | — | — |
| 1987 | 84° | 66° | 75° | — | — |
| 1986 | 72° | 62° | 67° | — | — |
| 1985 | 72° | 62° | 67° | 0.51" | — |
| 1984 | 83° | 70° | 76° | — | — |
| 1983 | 75° | 65° | 70° | — | — |
| 1982 | 81° | 67° | 74° | — | — |
| 1981 | 73° | 66° | 70° | — | — |
| 1980 | 70° | 60° | 65° | — | — |
| 1979 | 76° | 64° | 70° | — | — |
| 1978 | 77° | 67° | 72° | — | — |
| 1977 | 73° | 60° | 67° | — | — |
| 1976 | 76° | 66° | 71° | 0.23" | — |
| 1975 | 69° | 61° | 65° | — | — |
| 1974 | 75° | 69° | 72° | — | — |
| 1973coldest | 66° | 61° | 63° | — | — |
| 1972 | 76° | 65° | 70° | — | — |
| 1971 | 72° | 60° | 66° | — | — |
55 years of data from NEWPORT BEACH HARBOR