Jaffna Weather in December
Average highs run from 28°C on December 1 to 27°C on December 31, and lows from 26°C to 25°C. Normal precipitation for the month is 186 mm over about 16 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
- 25°C
- Precipitation
- 186 mm
- Reanalysis high
- 30°CDec 6, 1996
- Reanalysis low
- 23°CDec 26, 2007
- Daylight
- 11 h 36 min to 11 h 34 min
- Cloud cover
- 69%
- Humidity
- 80%
- Dew point
- 23°C
- Wind
- 23.0 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 | 28°C | 26°C | 29°C 1997 | 23°C 2016 | 58% |
| Dec 2 | 28°C | 26°C | 29°C 1997 | 24°C 2016 | 57% |
| Dec 3 | 28°C | 26°C | 29°C 1998 | 24°C 1996 | 56% |
| Dec 4 | 28°C | 26°C | 29°C 1996 | 24°C 1993 | 54% |
| Dec 5 | 28°C | 26°C | 30°C 1996 | 24°C 2010 | 54% |
| Dec 6 | 28°C | 26°C | 30°C 1996 | 23°C 2010 | 54% |
| Dec 7 | 28°C | 26°C | 29°C 1996 | 25°C 1994 | 54% |
| Dec 8 | 28°C | 26°C | 29°C 2011 | 25°C 1991 | 54% |
| Dec 9 | 28°C | 26°C | 29°C 2011 | 24°C 1991 | 54% |
| Dec 10 | 28°C | 26°C | 28°C 1995 | 24°C 2012 | 54% |
| Dec 11 | 28°C | 26°C | 29°C 2017 | 24°C 1994 | 54% |
| Dec 12 | 28°C | 26°C | 29°C 2016 | 24°C 1994 | 54% |
| Dec 13 | 28°C | 26°C | 29°C 1995 | 24°C 1994 | 54% |
| Dec 14 | 28°C | 26°C | 29°C 1997 | 24°C 2000 | 55% |
| Dec 15 | 28°C | 26°C | 29°C 1997 | 24°C 2000 | 54% |
| Dec 16 | 28°C | 25°C | 29°C 1997 | 24°C 2013 | 54% |
| Dec 17 | 28°C | 25°C | 29°C 1997 | 24°C 2018 | 54% |
| Dec 18 | 28°C | 25°C | 28°C 2019 | 24°C 2004 | 55% |
| Dec 19 | 27°C | 25°C | 28°C 2019 | 24°C 2004 | 54% |
| Dec 20 | 27°C | 25°C | 29°C 2016 | 24°C 2004 | 52% |
| Dec 21 | 27°C | 25°C | 29°C 1994 | 23°C 2004 | 51% |
| Dec 22 | 27°C | 25°C | 28°C 1997 | 24°C 1999 | 50% |
| Dec 23 | 27°C | 25°C | 29°C 2015 | 24°C 2016 | 49% |
| Dec 24 | 27°C | 25°C | 28°C 2019 | 23°C 2016 | 48% |
| Dec 25 | 27°C | 25°C | 28°C 2003 | 23°C 2007 | 46% |
| Dec 26 | 27°C | 25°C | 29°C 1995 | 23°C 2007 | 42% |
| Dec 27 | 27°C | 25°C | 29°C 2003 | 24°C 1992 | 39% |
| Dec 28 | 27°C | 25°C | 29°C 1995 | 24°C 2002 | 36% |
| Dec 29 | 27°C | 25°C | 29°C 1995 | 24°C 2011 | 34% |
| Dec 30 | 27°C | 25°C | 28°C 2012 | 24°C 2006 | 33% |
| Dec 31 | 27°C | 25°C | 28°C 2015 | 24°C 2002 | 32% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+5:30).
- December 1
- sunrise 6:11 AM, sunset 5:47 PM
- December 31
- sunrise 6:26 AM, sunset 6:00 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.