Jaffna experiences a Tropical Savanna Climate (Köppen climate classification: *Aw*), characterized by distinct wet and dry seasons and consistently high temperatures year-round.
* **Temperatures:** Average temperatures range from 26°C to 33°C (79°F to 91°F). April and May are typically the hottest months. * **Rainfall:** Jaffna receives most of its rainfall during the Northeast Monsoon between October and January. The annual rainfall averages around 1,300 mm. * **Dry Season:** A prolonged dry season occurs from February to August, making the landscape arid and increasing reliance on well water. * **Humidity:** Humidity is generally high, typically hovering between 70% and 80%. * **Natural Disasters:** The region is occasionally affected by cyclones originating in the Bay of Bengal, and localized flooding can occur during the peak monsoon season. * **Best Time to Visit:** December to March, when the weather is relatively cooler and drier.