The maximum temperature in Jaffna is on average 29°C over the year, with values generally ranging between 27°C in January and 30°C in April. Precipitation is fairly high, with about 1,827 mm per year. It ranges from 36 mm in March to 456 mm in November.
The weather is pleasant to stay to Jaffna in: January, February, March, April, May, June, July, August and September. However, the period when the weather is truly ideal is January, February, March and July.
For swimming, the most favorable period for water temperature is April, May and July, with a water temperature above 29.4°C.
However, the best time to fully enjoy the beach and swimming is January, February, March and July.
In terms of crowd levels, the quietest periods are in October, while crowding is high in July, December and August. For the budget, the months when prices are relatively low are September and October and the highest are January, February, March, April, July, August and December.