Jaffna Weather in January
Average highs run from 27°C on January 1 to 28°C on January 31, and lows from 25°C to 25°C. Normal precipitation for the month is 37 mm over about 6 wet days.
January day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
January at a glance
- Average high
- 27°C
- Average low
- 25°C
- Precipitation
- 37 mm
- Reanalysis high
- 30°CJan 3, 1991
- Reanalysis low
- 22°CJan 22, 2000
- Daylight
- 11 h 35 min to 11 h 43 min
- Cloud cover
- 56%
- Humidity
- 77%
- Dew point
- 22°C
- Wind
- 22.3 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 |
|---|---|---|---|---|---|
| Jan 1 | 27°C | 25°C | 29°C 2020 | 24°C 2003 | 32% |
| Jan 2 | 27°C | 25°C | 29°C 2020 | 24°C 2019 | 31% |
| Jan 3 | 27°C | 25°C | 30°C 1991 | 24°C 1993 | 30% |
| Jan 4 | 27°C | 25°C | 29°C 1991 | 24°C 1993 | 29% |
| Jan 5 | 27°C | 25°C | 29°C 2020 | 23°C 1997 | 27% |
| Jan 6 | 27°C | 25°C | 28°C 1991 | 24°C 1993 | 26% |
| Jan 7 | 27°C | 25°C | 28°C 1991 | 23°C 2018 | 24% |
| Jan 8 | 27°C | 25°C | 28°C 1995 | 23°C 2017 | 23% |
| Jan 9 | 27°C | 25°C | 28°C 1996 | 24°C 2019 | 23% |
| Jan 10 | 27°C | 25°C | 29°C 1991 | 23°C 2017 | 23% |
| Jan 11 | 27°C | 25°C | 29°C 1995 | 24°C 2005 | 23% |
| Jan 12 | 27°C | 25°C | 29°C 1995 | 24°C 2002 | 23% |
| Jan 13 | 27°C | 25°C | 29°C 1995 | 23°C 2002 | 23% |
| Jan 14 | 27°C | 25°C | 29°C 1995 | 24°C 1993 | 22% |
| Jan 15 | 27°C | 25°C | 29°C 1995 | 23°C 1993 | 21% |
| Jan 16 | 27°C | 25°C | 29°C 1996 | 23°C 1993 | 20% |
| Jan 17 | 27°C | 25°C | 29°C 1996 | 23°C 2017 | 18% |
| Jan 18 | 27°C | 25°C | 28°C 1998 | 23°C 2004 | 17% |
| Jan 19 | 27°C | 25°C | 29°C 1991 | 23°C 2012 | 17% |
| Jan 20 | 27°C | 25°C | 29°C 1998 | 23°C 2006 | 17% |
| Jan 21 | 27°C | 25°C | 29°C 1997 | 22°C 2000 | 16% |
| Jan 22 | 27°C | 25°C | 29°C 1998 | 22°C 2000 | 16% |
| Jan 23 | 27°C | 25°C | 29°C 1998 | 23°C 2000 | 15% |
| Jan 24 | 28°C | 25°C | 29°C 1998 | 23°C 2006 | 15% |
| Jan 25 | 28°C | 25°C | 29°C 1998 | 23°C 2003 | 15% |
| Jan 26 | 28°C | 25°C | 29°C 1998 | 23°C 1997 | 14% |
| Jan 27 | 28°C | 25°C | 29°C 1998 | 24°C 1993 | 14% |
| Jan 28 | 28°C | 25°C | 29°C 1998 | 23°C 2002 | 15% |
| Jan 29 | 28°C | 25°C | 29°C 2004 | 24°C 1993 | 16% |
| Jan 30 | 28°C | 25°C | 29°C 2004 | 23°C 1999 | 17% |
| Jan 31 | 28°C | 25°C | 29°C 1998 | 23°C 1999 | 17% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+5:30).
- January 1
- sunrise 6:26 AM, sunset 6:01 PM
- January 31
- sunrise 6:32 AM, sunset 6:15 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.