Average monthly temperatures
Sri Lanka has a tropical climate with high temperates throughout the year, as with most tropical destinations there are both dry and rainy seasons, although even during the wetter months there are usually plenty of hot perfect sunny days and any rainfall usually comes in heavy showers which clear quickly.
The best time to visit is between January and March when sunshine and temperatures are at there best and rainfall is lowest.
The hottest month of the year is April with an average daily maximum of 33 C and an average low of 25 C.
The coolest month of the year is September with an average daily maximum of 30 C and an average low of 26 C.
Sunshine and rainfall
The driest month is January with 20 mm of rainfall and 29 perfect sunny days. The wettest month is May with 135 mm of rain over 9 days.