Waipahu Weather in December
Average highs run from 82°F on December 1 to 80°F on December 31, and lows from 66°F to 63°F. Normal precipitation for the month is 2.56 in over about 10 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 81°F
- Average low
- 65°F
- Precipitation
- 2.56 in
- Record high
- 87°FDec 31, 2007
- Record low
- 52°FDec 17, 2013
- Chance of a freeze
- 0%
- Daylight
- 10 h 56 min to 10 h 51 min
- Cloud cover
- 54%
- Humidity
- 76%
- Dew point
- 66°F
- Wind
- 13.9 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 |
|---|---|---|---|---|---|
| Dec 1 | 82°F | 66°F | 80°F 2000 | 58°F 2000 | 31% |
| Dec 2 | 82°F | 66°F | 83°F 2005 | 58°F 2000 | 31% |
| Dec 3 | 82°F | 66°F | 84°F 2005 | 59°F 2002 | 31% |
| Dec 4 | 82°F | 66°F | 83°F 2000 | 56°F 2002 | 31% |
| Dec 5 | 82°F | 66°F | 80°F 2000 | 56°F 2002 | 31% |
| Dec 6 | 82°F | 66°F | 86°F 2006 | 57°F 2002 | 31% |
| Dec 7 | 82°F | 66°F | 82°F 2000 | 58°F 2010 | 31% |
| Dec 8 | 82°F | 66°F | 80°F 2003 | 55°F 2009 | 31% |
| Dec 9 | 82°F | 66°F | 82°F 2004 | 57°F 2009 | 31% |
| Dec 10 | 82°F | 66°F | 80°F 2007 | 58°F 1997 | 31% |
| Dec 11 | 82°F | 66°F | 82°F 2000 | 57°F 2009 | 31% |
| Dec 12 | 82°F | 66°F | 81°F 2000 | 57°F 1997 | 31% |
| Dec 13 | 81°F | 66°F | 81°F 2009 | 57°F 2004 | 31% |
| Dec 14 | 81°F | 66°F | 79°F 1999 | 55°F 1997 | 31% |
| Dec 15 | 81°F | 65°F | 82°F 2002 | 58°F 1998 | 31% |
| Dec 16 | 81°F | 65°F | 82°F 2005 | 55°F 1998 | 31% |
| Dec 17 | 81°F | 65°F | 83°F 2013 | 52°F 2013 | 31% |
| Dec 18 | 81°F | 65°F | 79°F 1999 | 57°F 1998 | 31% |
| Dec 19 | 81°F | 65°F | 82°F 1998 | 53°F 2013 | 31% |
| Dec 20 | 81°F | 65°F | 82°F 2002 | 58°F 2000 | 31% |
| Dec 21 | 81°F | 65°F | 81°F 2002 | 57°F 2003 | 31% |
| Dec 22 | 81°F | 65°F | 81°F 2005 | 57°F 2003 | 31% |
| Dec 23 | 81°F | 64°F | 81°F 2002 | 58°F 2006 | 31% |
| Dec 24 | 81°F | 64°F | 78°F 2004 | 55°F 2005 | 31% |
| Dec 25 | 81°F | 64°F | 82°F 2005 | 58°F 2005 | 31% |
| Dec 26 | 81°F | 64°F | 81°F 2006 | 58°F 2000 | 31% |
| Dec 27 | 80°F | 64°F | 81°F 2003 | 55°F 2004 | 31% |
| Dec 28 | 80°F | 64°F | 82°F 2003 | 57°F 1998 | 31% |
| Dec 29 | 80°F | 64°F | 83°F 2000 | 57°F 1998 | 31% |
| Dec 30 | 80°F | 63°F | 82°F 2005 | 56°F 1999 | 31% |
| Dec 31 | 80°F | 63°F | 87°F 2007 | 56°F 1999 | 31% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- December 1
- sunrise 6:53 AM, sunset 5:49 PM
- December 31
- sunrise 7:10 AM, sunset 6:01 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00511918 (Ewa Beach Usgs 702.2), public domain. Records: NOAA GHCN-Daily, station USC00518838, 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.