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Honolulu, HI Weather on August 12
Honolulu's August heat streak hits 92°F record in 2019
August 12 in Honolulu typically brings warm tropical conditions with an average high of 87°F, though the island has experienced more extreme swings across its 55-year weather record. The mercury soared to 92°F on this date in 2019, the hottest recorded, while 2025 brought an unusually cool low of 68°F. These variations remind residents that even in Hawaii's consistent climate, summer weather can push toward notable extremes.
What to Expect on August 12
Planning for August 12th in Honolulu, HI? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest August 12 ever in Honolulu?
The warmest August 12 in Honolulu, HI reached 96°F in 1971. That is 10°F above the long-term average high of 86°F.
What was the coldest August 12 ever in Honolulu?
The coldest August 12 in Honolulu, HI dropped to 65°F in 2006. That is 7°F below the long-term average low of 72°F.
What is the average temperature on August 12 in Honolulu?
On August 12, Honolulu averages a high of 86°F and a low of 72°F based on 51 years of NOAA weather observations from FRENCH FRIGATE SHOALS.
How many years of weather data are available for August 12 in Honolulu?
We have 51 years of weather records for August 12 in Honolulu, HI, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 12 Weather History in Honolulu
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 87°F | 73°F | -- | -- |
| 2024 | 84°F | 68°F | -- | -- |
| 2023 | 82°F | 67°F | -- | -- |
| 2022 | 77°F | 67°F | -- | -- |
| 2021 | 83°F | 68°F | -- | -- |
| 2020 | 81°F | 68°F | -- | -- |
| 2019 | 84°F | 70°F | -- | -- |
| 2018 | 82°F | 69°F | -- | -- |
| 2017 | 87°F | 70°F | -- | -- |
| 2016 | 84°F | 69°F | -- | -- |
| 2014 | 85°F | 82°F | -- | -- |
| 2013 | 84°F | 66°F | -- | -- |
| 2012 | 87°F | 72°F | 0" | -- |
| 2011 | 87°F | 71°F | 0" | -- |
| 2010 | 89°F | 72°F | 0" | -- |
| 2009 | 91°F | 78°F | 0.05" | -- |
| 2008 | 87°F | 71°F | 0" | -- |
| 2007 | 88°F | 73°F | 0" | -- |
| 2006 | 83°F | 65°F | -- | -- |
| 2005 | 86°F | 72°F | 0" | -- |
| 2004 | 88°F | 75°F | 0" | -- |
| 2003 | 89°F | 72°F | 0" | -- |
| 2002 | 85°F | 73°F | 0" | -- |
| 2001 | 87°F | 71°F | 0.02" | -- |
| 1999 | 85°F | 67°F | 0" | -- |
| 1998 | 83°F | 73°F | 0.19" | -- |
| 1997 | 89°F | 71°F | 0" | -- |
| 1996 | 88°F | 75°F | 0" | -- |
| 1995 | 88°F | 73°F | 0" | -- |
| 1994 | 89°F | 75°F | 0" | -- |
| 1993 | 89°F | 74°F | 0" | -- |
| 1992 | 90°F | 72°F | 0" | -- |
| 1991 | 88°F | 70°F | 0" | -- |
| 1990 | 84°F | 68°F | 0" | -- |
| 1989 | 84°F | 68°F | 0" | -- |
| 1988 | 87°F | 72°F | 0" | -- |
| 1987 | 88°F | 74°F | 0" | -- |
| 1986 | 92°F | 73°F | 0" | -- |
| 1985 | 87°F | 71°F | 0" | -- |
| 1984 | 87°F | 73°F | 0.02" | -- |
| 1983 | 86°F | 71°F | 0.01" | -- |
| 1982 | 87°F | 74°F | 0" | -- |
| 1981 | 93°F | 66°F | 0.01" | -- |
| 1978 | 82°F | 70°F | 0.04" | -- |
| 1977 | 82°F | 77°F | 0.39" | -- |
| 1976 | 87°F | 76°F | 0.19" | -- |
| 1975 | 87°F | 76°F | 0.03" | -- |
| 1974 | 86°F | 80°F | 0.05" | -- |
| 1973 | 87°F | 74°F | 0.17" | -- |
| 1972 | 85°F | 69°F | 0" | -- |
| 1971 | 96°F | 77°F | 0.15" | -- |
Based on 51 years of data from NOAA station: FRENCH FRIGATE SHOALS
How Has August 12 Changed?
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for Honolulu, HI, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.