Biak Weather in December
Average highs run from 29°C on December 1 to 28°C on December 31, and lows from 28°C to 27°C. Normal precipitation for the month is 276 mm over about 28 wet days.
December day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
December at a glance
- Average high
- 28°C
- Average low
- 27°C
- Precipitation
- 276 mm
- Reanalysis high
- 30°CDec 5, 2019
- Reanalysis low
- 25°CDec 14, 2001
- Daylight
- 12 h 11 min to 12 h 11 min
- Cloud cover
- 82%
- Humidity
- 82%
- Dew point
- 25°C
- Wind
- 13.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 29°C | 28°C | 30°C 2010 | 27°C 2006 | 91% |
| Dec 2 | 29°C | 28°C | 30°C 2010 | 26°C 2006 | 92% |
| Dec 3 | 29°C | 28°C | 30°C 2010 | 27°C 1994 | 92% |
| Dec 4 | 29°C | 28°C | 30°C 2011 | 26°C 1994 | 93% |
| Dec 5 | 29°C | 28°C | 30°C 2019 | 26°C 1994 | 93% |
| Dec 6 | 29°C | 28°C | 30°C 2017 | 26°C 1994 | 94% |
| Dec 7 | 29°C | 28°C | 30°C 2015 | 27°C 2012 | 93% |
| Dec 8 | 29°C | 28°C | 30°C 2017 | 26°C 2005 | 93% |
| Dec 9 | 29°C | 27°C | 29°C 2019 | 26°C 1991 | 93% |
| Dec 10 | 28°C | 27°C | 29°C 2015 | 26°C 1992 | 93% |
| Dec 11 | 28°C | 27°C | 30°C 2018 | 26°C 1992 | 92% |
| Dec 12 | 28°C | 27°C | 30°C 2017 | 26°C 1991 | 92% |
| Dec 13 | 28°C | 27°C | 29°C 2020 | 26°C 1991 | 91% |
| Dec 14 | 28°C | 27°C | 30°C 2019 | 25°C 2001 | 91% |
| Dec 15 | 28°C | 27°C | 29°C 2011 | 25°C 1993 | 91% |
| Dec 16 | 28°C | 27°C | 30°C 2018 | 27°C 1995 | 91% |
| Dec 17 | 28°C | 27°C | 30°C 2018 | 27°C 1995 | 91% |
| Dec 18 | 28°C | 27°C | 29°C 2018 | 26°C 2012 | 91% |
| Dec 19 | 28°C | 27°C | 30°C 2018 | 26°C 1995 | 91% |
| Dec 20 | 28°C | 27°C | 30°C 2018 | 26°C 1992 | 92% |
| Dec 21 | 28°C | 27°C | 30°C 2010 | 26°C 1992 | 92% |
| Dec 22 | 28°C | 27°C | 30°C 2016 | 26°C 1992 | 92% |
| Dec 23 | 28°C | 27°C | 29°C 2016 | 26°C 1992 | 92% |
| Dec 24 | 28°C | 27°C | 30°C 2011 | 27°C 1991 | 93% |
| Dec 25 | 28°C | 27°C | 29°C 2002 | 26°C 1992 | 93% |
| Dec 26 | 28°C | 27°C | 29°C 2009 | 26°C 1998 | 93% |
| Dec 27 | 28°C | 27°C | 30°C 2016 | 26°C 1998 | 94% |
| Dec 28 | 28°C | 27°C | 29°C 2018 | 26°C 1995 | 95% |
| Dec 29 | 28°C | 27°C | 29°C 2012 | 26°C 1998 | 96% |
| Dec 30 | 28°C | 27°C | 30°C 2011 | 27°C 1991 | 96% |
| Dec 31 | 28°C | 27°C | 29°C 2011 | 26°C 1992 | 95% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- December 1
- sunrise 5:39 AM, sunset 5:50 PM
- December 31
- sunrise 5:53 AM, sunset 6:04 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: 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.