Jaffna weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: January – March
What is the weather like in Jaffna in January?
In January, Jaffna is warm: daytime highs average 27 °C, and even at night it stays warm at around 25 °C. The sea averages 26.7 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 73 mm. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Jaffna.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 59 | 84 | 88 |
| Day | 27° | 27° | 28° |
| Night | 25° | 25° | 25° |
| Sea | 27° | 27° | 27° |
| Sun | 5 h | 7 h | 8 h |
| Rain days | 17 | 8 | 5 |
More details for January
- Daylight
- 11 h 37 min06:30 – 18:07
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 55 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+5:30Asia/Colombo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %60 %
- Few rainy daysweight 30 %74 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
Jaffna in January: quick answers
Is Jaffna hot in January?
Warm rather than hot: in January, daytime highs in Jaffna average 27 °C and nights cool to about 25 °C.
Can you swim in Jaffna in January?
Yes. In January the sea averages 26.7 °C – lovely and warm for swimming.
Does it rain much in Jaffna in January?
Rain falls on about 8 days, adding up to 73 mm.
Jaffna month by month
The whole year in JaffnaAll destinations: Sri LankaWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences