Captain Cook Weather in August
Average highs run from 78°F on August 1 to 78°F on August 31, and lows from 64°F to 64°F. Normal precipitation for the month is 3.40 in over about 15 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 78°F
- Average low
- 64°F
- Precipitation
- 3.40 in
- Record high
- 95°FAug 7, 2014
- Record low
- 69°FAug 26, 2010
- Chance of a freeze
- 0%
- Daylight
- 13 h 00 min to 12 h 31 min
- Cloud cover
- 52%
- Humidity
- 77%
- Dew point
- 71°F
- Wind
- 6.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 78°F | 64°F | 93°F 2015 | 70°F 2010 | 48% |
| Aug 2 | 78°F | 64°F | 91°F 2018 | 71°F 2010 | 48% |
| Aug 3 | 78°F | 64°F | 92°F 2015 | 72°F 2010 | 48% |
| Aug 4 | 78°F | 64°F | 90°F 2015 | 71°F 2010 | 48% |
| Aug 5 | 78°F | 64°F | 90°F 2002 | 71°F 2010 | 48% |
| Aug 6 | 78°F | 64°F | 90°F 2015 | 73°F 2005 | 48% |
| Aug 7 | 78°F | 64°F | 95°F 2014 | 71°F 2007 | 48% |
| Aug 8 | 78°F | 64°F | 90°F 2015 | 71°F 1999 | 48% |
| Aug 9 | 78°F | 64°F | 90°F 2015 | 71°F 2010 | 48% |
| Aug 10 | 78°F | 64°F | 90°F 2015 | 70°F 2010 | 48% |
| Aug 11 | 78°F | 64°F | 91°F 2015 | 73°F 1999 | 48% |
| Aug 12 | 78°F | 64°F | 91°F 2016 | 71°F 2018 | 48% |
| Aug 13 | 78°F | 64°F | 91°F 2015 | 72°F 2005 | 49% |
| Aug 14 | 78°F | 64°F | 90°F 2015 | 71°F 2010 | 49% |
| Aug 15 | 78°F | 64°F | 92°F 2003 | 71°F 2010 | 49% |
| Aug 16 | 78°F | 64°F | 91°F 2015 | 73°F 2011 | 49% |
| Aug 17 | 78°F | 64°F | 90°F 2015 | 72°F 2008 | 49% |
| Aug 18 | 78°F | 64°F | 90°F 2003 | 72°F 2012 | 49% |
| Aug 19 | 78°F | 64°F | 90°F 2016 | 72°F 1999 | 49% |
| Aug 20 | 78°F | 64°F | 91°F 2000 | 72°F 2011 | 50% |
| Aug 21 | 78°F | 64°F | 90°F 2026 | 73°F 1999 | 50% |
| Aug 22 | 78°F | 64°F | 91°F 2015 | 72°F 2010 | 50% |
| Aug 23 | 78°F | 64°F | 90°F 2015 | 72°F 2002 | 50% |
| Aug 24 | 78°F | 64°F | 91°F 2016 | 70°F 2008 | 50% |
| Aug 25 | 78°F | 64°F | 91°F 2020 | 71°F 2010 | 50% |
| Aug 26 | 78°F | 64°F | 90°F 2020 | 69°F 2010 | 51% |
| Aug 27 | 78°F | 64°F | 90°F 2020 | 71°F 2010 | 51% |
| Aug 28 | 78°F | 64°F | 89°F 2009 | 70°F 1999 | 51% |
| Aug 29 | 78°F | 64°F | 91°F 2015 | 72°F 1999 | 51% |
| Aug 30 | 78°F | 64°F | 91°F 2000 | 72°F 1999 | 51% |
| Aug 31 | 78°F | 64°F | 92°F 2000 | 71°F 2010 | 51% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- August 1
- sunrise 6:00 AM, sunset 7:00 PM
- August 31
- sunrise 6:08 AM, sunset 6:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00517166 (Opihihale #2 24.1), public domain. Records: NOAA GHCN-Daily, station USW00021510, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.