Weather on December 21
Honolulu, HI
55 Years of Data
Avg High
79°F
Avg Low
65°F
Warmest
2004
80°F avg
Coldest
2017
63°F avg
About This Date
December 21st in Honolulu, HI typically brings pleasant winter weather, with average highs around 79°F and lows near 65°F. Over 49 years of records, the warmest December 21st was in 2004 (80°F average), while the coldest was 2017 (63°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 21st dates historically, with the wettest December 21st recording 5.99" of rain. The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
Planning for December 21st in Honolulu, HI? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 71° | 76° | — | — |
| 2024 | 77° | 63° | 70° | — | — |
| 2023 | 75° | 64° | 70° | — | — |
| 2022 | 74° | 63° | 68° | — | — |
| 2021 | 71° | 62° | 67° | — | — |
| 2020 | 77° | 66° | 72° | — | — |
| 2019 | 72° | 64° | 68° | — | — |
| 2018 | 74° | 61° | 67° | — | — |
| 2017coldest | 70° | 57° | 63° | — | — |
| 2016 | 75° | 64° | 70° | — | — |
| 2013 | 81° | 67° | 74° | — | — |
| 2012 | 81° | 63° | 72° | 0.03" | — |
| 2011 | 83° | 64° | 73° | — | — |
| 2010 | 81° | 72° | 76° | 0.13" | — |
| 2009 | 81° | 66° | 73° | — | — |
| 2008 | 83° | 67° | 75° | — | — |
| 2007 | 81° | 66° | 73° | — | — |
| 2005 | 80° | 65° | 72° | — | — |
| 2004warmest | 84° | 76° | 80° | 0.66" | — |
| 2003 | 81° | 64° | 72° | — | — |
| 2002 | 80° | 68° | 74° | 0.56" | — |
| 2001 | 82° | 66° | 74° | — | — |
| 1999 | 77° | 61° | 69° | 0.25" | — |
| 1998 | 79° | 65° | 72° | — | — |
| 1997 | 85° | 65° | 75° | 0.03" | — |
| 1996 | 75° | 66° | 71° | 5.99" | — |
| 1995 | 80° | 67° | 73° | — | — |
| 1994 | 83° | 66° | 74° | — | — |
| 1993 | 82° | 65° | 73° | — | — |
| 1992 | 83° | 66° | 74° | — | — |
| 1991 | 83° | 64° | 73° | — | — |
| 1990 | 80° | 64° | 72° | 0.15" | — |
| 1989 | 81° | 61° | 71° | — | — |
| 1988 | 83° | 66° | 74° | — | — |
| 1987 | 81° | — | — | — | — |
| 1986 | 83° | 63° | 73° | — | — |
| 1985 | 82° | 64° | 73° | — | — |
| 1984 | 85° | 64° | 74° | 0.1" | — |
| 1983 | 76° | 63° | 69° | 0.36" | — |
| 1982 | 76° | 63° | 69° | — | — |
| 1980 | 78° | 63° | 70° | — | — |
| 1978 | 78° | 66° | 72° | — | — |
| 1977 | 78° | 69° | 74° | 0.03" | — |
| 1976 | 74° | 71° | 72° | 0.05" | — |
| 1975 | 79° | 71° | 75° | — | — |
| 1974 | 80° | 64° | 72° | 0.46" | — |
| 1973 | 77° | 69° | 73° | — | — |
| 1972 | 78° | 60° | 69° | — | — |
| 1971 | 78° | 61° | 69° | — | — |
49 years of data from FRENCH FRIGATE SHOALS