Weather on September 1
Honolulu, HI
55 Years of Data
Avg High
87°F
Avg Low
71°F
Warmest
2015
85°F avg
Coldest
2021
72°F avg
About This Date
September 1st in Honolulu, HI typically brings warm fall weather, with average highs around 87°F and lows near 71°F. Over 53 years of records, the warmest September 1st was in 2015 (85°F average), while the coldest was 2021 (72°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 1st dates historically, with the wettest September 1st recording 1.75" of rain. The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for September 1st in Honolulu, HI? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 69° | 77° | — | — |
| 2024 | 84° | 69° | 77° | — | — |
| 2023 | 84° | 67° | 75° | — | — |
| 2022 | 80° | 68° | 74° | — | — |
| 2021coldest | 78° | 66° | 72° | — | — |
| 2020 | 82° | 69° | 76° | — | — |
| 2019 | 82° | 69° | 76° | — | — |
| 2018 | 82° | 67° | 74° | — | — |
| 2017 | 82° | 68° | 75° | — | — |
| 2016 | 90° | 71° | 80° | — | — |
| 2015warmest | 91° | 78° | 85° | — | — |
| 2014 | 87° | 73° | 80° | — | — |
| 2013 | 87° | 72° | 79° | — | — |
| 2012 | 85° | 66° | 75° | — | — |
| 2011 | 87° | 75° | 81° | — | — |
| 2010 | 86° | 71° | 79° | — | — |
| 2009 | 89° | 71° | 80° | — | — |
| 2008 | 88° | 71° | 79° | 0.03" | — |
| 2007 | 88° | 74° | 81° | — | — |
| 2006 | 82° | 68° | 75° | — | — |
| 2005 | 87° | 73° | 80° | — | — |
| 2004 | 89° | 75° | 82° | — | — |
| 2003 | 89° | 73° | 81° | — | — |
| 2002 | 87° | 72° | 79° | — | — |
| 2001 | 89° | 70° | 79° | — | — |
| 2000 | 87° | 63° | 75° | — | — |
| 1999 | 89° | 70° | 79° | — | — |
| 1998 | 86° | 72° | 79° | — | — |
| 1997 | 87° | 73° | 80° | — | — |
| 1996 | 85° | 76° | 80° | — | — |
| 1995 | 86° | 72° | 79° | — | — |
| 1994 | 88° | 74° | 81° | — | — |
| 1993 | 89° | 73° | 81° | — | — |
| 1992 | 86° | 72° | 79° | — | — |
| 1991 | 90° | 72° | 81° | — | — |
| 1989 | 85° | 70° | 77° | — | — |
| 1988 | 88° | 69° | 78° | — | — |
| 1987 | 83° | 73° | 78° | 1.75" | — |
| 1986 | 88° | 71° | 79° | — | — |
| 1985 | 88° | 69° | 78° | — | — |
| 1984 | 88° | 74° | 81° | — | — |
| 1983 | 85° | 70° | 77° | — | — |
| 1982 | 84° | 74° | 79° | — | — |
| 1981 | 93° | 66° | 80° | — | — |
| 1980 | 94° | 65° | 79° | — | — |
| 1978 | 86° | 72° | 79° | 0.03" | — |
| 1977 | 85° | 68° | 76° | 0.51" | — |
| 1976 | 88° | 74° | 81° | 0.33" | — |
| 1975 | 89° | 73° | 81° | 0.03" | — |
| 1974 | 86° | 70° | 78° | — | — |
| 1973 | 88° | 77° | 82° | 0.18" | — |
| 1972 | 87° | 72° | 79° | — | — |
| 1971 | 94° | 74° | 84° | 0.05" | — |
53 years of data from FRENCH FRIGATE SHOALS