The Jaffna, Northern Province capital of Sri Lanka, is classified as having a tropical rainforest climate. The city has the highest average temperatures of Sri Lanka with a year average of 28°C(83°F). The hottest (and humid) months are either side of the monsoon rains in April /May and August / September while the coolest months are during the winter months of December and January.
The northern region is dominated by the North Eastern Monsoon (Maha season) but unlike many of the regions monsoon this does not occur precisely each year and can vary by weeks. Generally the best time of the year to visit Jaffna and the northern side of Sri Lanka is during the summer months, between May to September but even during these months there can be sudden large rain showers. The winter months December through to March are considered the height of season for the tourist areas of Sri Lanka (south west side of the island) this period is possible the worst time of year to visit the northern side of the island
The average weather for Jaffna, Sri Lanka
Jaffna temperature in Fahrenheit and Centigrade
The above chart indicates the maximum day time and minimum night time temperature for Jaffna in Centigrade and Fahrenheit. The day time maximum temperature measures the air temperature in shade therefore the temperature of Jaffna Sri Lanka will be much higher in direct sun light.
Jaffna rainfall, wet days and rain
The above chart displays the average number of wet days against the average amount of rainfalls. Jaffna has a very clear wet season to the end of the year which is different from the majority of south western Sri Lanka.
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