Mirissa, Sri Lanka - Weather and Climate
Mirissa features a tropical rainforest climate. The city has no true dry season, though it is noticeably drier in the months of January and February. Temperatures show little variation throughout the course of the year, with average maximum temperatures hovering at around 29°C.
Average maximum day and minimum night temperature
The climate in Mirissa remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very warm 31°C in March, the warmest time of the year, to a comfortable 29°C during cooler months like January.
At night, temperatures typically drop to an average of around 24°C during these months.Check out our detailed temperature page for more information.
Temperature ranges by month
Precipitation and rainy days
Mirissa is known for its substantial rainfall, with annual precipitation reaching 2201 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, November receives heavy rainfall, averaging 283 mm of precipitation, recorded across 14 rainy days. In contrast, the drier season, February brings less rainfall, with 76 mm over 5 rainy days. For more details, please visit our Mirissa Precipitation page.
The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
While the amount of sunshine in Mirissa varies throughout the year, all seasons offer their own charm. Enjoy up to 9.0 hours of daily sun in March, and experience slightly darker atmosphere in September, with about 6.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Forecast for Mirissa
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Mirissa in Sri Lanka
Mirissa has high temperatures year round ranging between 29°C and 31°C.Other facts from our historical weather data:
March has an average maximum temperature of 31°C and is the hottest month of the year.
The coolest month is January with an average maximum temperature of 29°C.
November tops the wettest month list with 283 mm of rainfall.
February is the driest month with 76 mm of precipitation.
March is the sunniest month with an average of 270 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
