Kauai County Weather in August
Average highs run from 87°F on August 1 to 88°F on August 31, and lows from 72°F to 73°F. Normal precipitation for the month is 0.27 in over about 3 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
- 88°F
- Average low
- 73°F
- Precipitation
- 0.27 in
- Record high
- 93°FAug 3, 2004
- Record low
- 65°FAug 9, 1972
- Chance of a freeze
- 0%
- Days of 90°F or more
- 3.6
- Daylight
- 13 h 08 min to 12 h 34 min
- Cloud cover
- 47%
- Humidity
- 76%
- Dew point
- 71°F
- Wind
- 15.4 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 | 87°F | 72°F | 91°F 2005 | 66°F 1975 | 12% |
| Aug 2 | 87°F | 72°F | 90°F 1971 | 68°F 1970 | 12% |
| Aug 3 | 87°F | 72°F | 93°F 2004 | 68°F 1970 | 12% |
| Aug 4 | 87°F | 72°F | 91°F 1992 | 67°F 1970 | 12% |
| Aug 5 | 87°F | 73°F | 90°F 1986 | 67°F 1975 | 12% |
| Aug 6 | 87°F | 73°F | 91°F 1986 | 66°F 1975 | 12% |
| Aug 7 | 87°F | 73°F | 92°F 1992 | 66°F 1989 | 12% |
| Aug 8 | 88°F | 73°F | 90°F 1982 | 67°F 1989 | 12% |
| Aug 9 | 88°F | 73°F | 91°F 1993 | 65°F 1972 | 12% |
| Aug 10 | 88°F | 73°F | 90°F 2009 | 68°F 1973 | 12% |
| Aug 11 | 88°F | 73°F | 93°F 2009 | 67°F 1989 | 12% |
| Aug 12 | 88°F | 73°F | 92°F 1986 | 68°F 1975 | 12% |
| Aug 13 | 88°F | 73°F | 92°F 1991 | 68°F 1972 | 12% |
| Aug 14 | 88°F | 73°F | 91°F 2004 | 65°F 1975 | 12% |
| Aug 15 | 88°F | 73°F | 92°F 2004 | 68°F 1969 | 11% |
| Aug 16 | 88°F | 73°F | 92°F 2015 | 68°F 1972 | 11% |
| Aug 17 | 88°F | 73°F | 91°F 1993 | 66°F 1989 | 11% |
| Aug 18 | 88°F | 73°F | 90°F 1992 | 66°F 1975 | 11% |
| Aug 19 | 88°F | 73°F | 91°F 1992 | 68°F 1975 | 11% |
| Aug 20 | 88°F | 73°F | 91°F 1992 | 67°F 1989 | 11% |
| Aug 21 | 88°F | 73°F | 90°F 2015 | 66°F 1975 | 11% |
| Aug 22 | 88°F | 73°F | 90°F 1993 | 67°F 1975 | 11% |
| Aug 23 | 88°F | 73°F | 93°F 2015 | 67°F 1988 | 11% |
| Aug 24 | 88°F | 73°F | 90°F 1994 | 67°F 1975 | 11% |
| Aug 25 | 88°F | 73°F | 90°F 1987 | 65°F 1975 | 11% |
| Aug 26 | 88°F | 73°F | 91°F 1987 | 66°F 1975 | 12% |
| Aug 27 | 88°F | 73°F | 92°F 2011 | 66°F 1975 | 12% |
| Aug 28 | 88°F | 73°F | 92°F 1987 | 68°F 1975 | 12% |
| Aug 29 | 88°F | 73°F | 91°F 1986 | 68°F 1975 | 12% |
| Aug 30 | 88°F | 73°F | 90°F 1991 | 68°F 1998 | 12% |
| Aug 31 | 88°F | 73°F | 91°F 2001 | 68°F 1975 | 13% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- August 1
- sunrise 6:11 AM, sunset 7:19 PM
- August 31
- sunrise 6:22 AM, sunset 6:56 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00022501 (Barking Sands), public domain. Records: NOAA GHCN-Daily, station USW00022501, 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.