Weather on August 21
Newport Beach, CA
55 Years of Data
Avg High
73°F
Avg Low
65°F
Warmest
1984
75°F avg
Coldest
1985
64°F avg
About This Date
August 21st in Newport Beach, CA typically brings pleasant summer weather, with average highs around 73°F and lows near 65°F. Over 55 years of records, the warmest August 21st was in 1984 (75°F average), while the coldest was 1985 (64°F) — a 11°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 21st dates historically, with the wettest August 21st recording 4.45" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 67° | 73° | — | — |
| 2024 | 77° | 68° | 73° | — | — |
| 2023 | 75° | 64° | 70° | 4.45" | — |
| 2022 | 73° | 68° | 71° | — | — |
| 2021 | 72° | 66° | 69° | — | — |
| 2020 | 77° | 71° | 74° | — | — |
| 2019 | 75° | 64° | 70° | — | — |
| 2018 | 77° | 70° | 73° | — | — |
| 2017 | 74° | 72° | 73° | — | — |
| 2016 | 72° | 64° | 68° | — | — |
| 2015 | 75° | 69° | 72° | — | — |
| 2014 | 72° | 67° | 69° | — | — |
| 2013 | 69° | 62° | 66° | — | — |
| 2012 | 74° | 70° | 72° | — | — |
| 2011 | 69° | 62° | 66° | — | — |
| 2010 | 69° | 60° | 65° | — | — |
| 2009 | 76° | 63° | 69° | — | — |
| 2008 | 71° | 65° | 68° | — | — |
| 2007 | 76° | 66° | 71° | — | — |
| 2006 | 71° | 64° | 68° | — | — |
| 2005 | 71° | 62° | 67° | — | — |
| 2004 | 73° | 66° | 70° | — | — |
| 2003 | 77° | 69° | 73° | — | — |
| 2002 | 70° | 68° | 69° | — | — |
| 2001 | 70° | 67° | 68° | — | — |
| 2000 | 70° | 68° | 69° | — | — |
| 1999 | 75° | 59° | 67° | — | — |
| 1998 | 80° | 64° | 72° | — | — |
| 1997 | 72° | 66° | 69° | — | — |
| 1996 | 73° | 61° | 67° | — | — |
| 1995 | 70° | 65° | 67° | — | — |
| 1994 | 72° | 67° | 69° | — | — |
| 1993 | 69° | 62° | 66° | — | — |
| 1992 | 72° | 66° | 69° | — | — |
| 1991 | 67° | 62° | 64° | — | — |
| 1990 | 71° | 63° | 67° | — | — |
| 1989 | 67° | 64° | 65° | — | — |
| 1988 | 67° | 62° | 64° | — | — |
| 1987 | 70° | 60° | 65° | — | — |
| 1986 | 74° | 64° | 69° | — | — |
| 1985coldest | 70° | 58° | 64° | — | — |
| 1984warmest | 78° | 72° | 75° | — | — |
| 1983 | 73° | 67° | 70° | — | — |
| 1982 | 78° | 68° | 73° | — | — |
| 1981 | 77° | 63° | 70° | — | — |
| 1980 | 74° | 62° | 68° | — | — |
| 1979 | 73° | 60° | 67° | — | — |
| 1978 | 71° | 68° | 70° | — | — |
| 1977 | 75° | 70° | 72° | — | — |
| 1976 | 70° | 60° | 65° | — | — |
| 1975 | 68° | 62° | 65° | — | — |
| 1974 | 73° | 62° | 68° | — | — |
| 1973 | 73° | 66° | 70° | — | — |
| 1972 | 79° | 61° | 70° | — | — |
| 1971 | 74° | 68° | 71° | — | — |
55 years of data from NEWPORT BEACH HARBOR