Sanya Weather in December
Average highs run from 26°C on December 1 to 25°C on December 31, and lows from 18°C to 15°C. Normal precipitation for the month is 40 mm over about 6 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
- 25°C
- Average low
- 16°C
- Precipitation
- 40 mm
- Reanalysis high
- 33°CDec 5, 2015
- Reanalysis low
- 5°CDec 24, 1999
- Daylight
- 11 h 07 min to 11 h 03 min
- Cloud cover
- 62%
- Humidity
- 82%
- Dew point
- 16°C
- Wind
- 9.4 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 | 26°C | 18°C | 29°C 1998 | 11°C 1992 | 22% |
| Dec 2 | 26°C | 17°C | 29°C 1998 | 12°C 2013 | 22% |
| Dec 3 | 26°C | 17°C | 30°C 2004 | 12°C 2019 | 21% |
| Dec 4 | 25°C | 17°C | 30°C 2018 | 12°C 2019 | 20% |
| Dec 5 | 25°C | 17°C | 33°C 2015 | 12°C 2019 | 19% |
| Dec 6 | 25°C | 17°C | 30°C 2018 | 11°C 2019 | 19% |
| Dec 7 | 25°C | 17°C | 30°C 1997 | 9°C 2019 | 20% |
| Dec 8 | 25°C | 17°C | 29°C 2006 | 11°C 2019 | 22% |
| Dec 9 | 25°C | 17°C | 29°C 1992 | 11°C 2019 | 22% |
| Dec 10 | 25°C | 17°C | 30°C 1992 | 11°C 2011 | 22% |
| Dec 11 | 25°C | 16°C | 28°C 1994 | 10°C 2011 | 21% |
| Dec 12 | 25°C | 16°C | 29°C 2007 | 10°C 2011 | 21% |
| Dec 13 | 25°C | 16°C | 29°C 1993 | 12°C 2011 | 20% |
| Dec 14 | 25°C | 16°C | 28°C 1992 | 13°C 2014 | 20% |
| Dec 15 | 24°C | 16°C | 28°C 2012 | 12°C 2003 | 20% |
| Dec 16 | 24°C | 16°C | 29°C 2012 | 9°C 2010 | 18% |
| Dec 17 | 24°C | 16°C | 29°C 1997 | 9°C 2010 | 18% |
| Dec 18 | 24°C | 16°C | 29°C 1997 | 10°C 2017 | 17% |
| Dec 19 | 24°C | 16°C | 29°C 1997 | 8°C 2017 | 18% |
| Dec 20 | 24°C | 16°C | 29°C 1992 | 8°C 2017 | 18% |
| Dec 21 | 24°C | 16°C | 29°C 2018 | 10°C 1999 | 17% |
| Dec 22 | 24°C | 15°C | 29°C 1997 | 6°C 1999 | 17% |
| Dec 23 | 24°C | 15°C | 29°C 2018 | 5°C 1999 | 16% |
| Dec 24 | 24°C | 15°C | 29°C 2015 | 5°C 1999 | 16% |
| Dec 25 | 24°C | 15°C | 29°C 2018 | 7°C 1999 | 16% |
| Dec 26 | 24°C | 15°C | 29°C 2018 | 7°C 1999 | 17% |
| Dec 27 | 24°C | 15°C | 28°C 1992 | 9°C 2013 | 16% |
| Dec 28 | 25°C | 15°C | 28°C 2007 | 8°C 1991 | 17% |
| Dec 29 | 25°C | 15°C | 28°C 2012 | 8°C 1991 | 18% |
| Dec 30 | 25°C | 15°C | 29°C 1992 | 9°C 2013 | 17% |
| Dec 31 | 25°C | 15°C | 27°C 1992 | 8°C 2012 | 18% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+8).
- December 1
- sunrise 6:57 AM, sunset 6:04 PM
- December 31
- sunrise 7:13 AM, sunset 6:16 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.