When planning a visit to Mannar District in Sri Lanka, it helps to know that temperatures typically range from 28°C (82°F) in January up to 32°C (90°F) during the peak of April. Our detailed climate overview is based on data from Mannar, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Throughout the year, Mannar District, particularly Mannar, maintains high temperatures, with average maximums always over 28°C (82°F).
March, April and May are generally the hottest months of the year.
When it comes to rainfall, Mannar District sees significant variations throughout the year. November tends to be the wettest, receiving 269 mm (11 in) of rain, while July is much drier with just 25 mm (1 in). Travelers should note that the rainy season falls during October and November, bringing substantial precipitation ranging from 194 mm (7.6 in) to 269 mm (11 in) monthly.