Sri Lanka
Season running high
In 2026 so far, the reported cases are above the expected number of cases. Cases are currently increasing, as expected at this time of the year based on trends in previous years.
Data refreshed: 21 April 2026
Dengue cases in 2026
Current year: Reported cases
Current year: Estimated cases (reported cases not available)
Uncertainty: 95% confidence interval
Further analysis
In March 2026, Sri Lanka reported 6,016 dengue cases, well above what we would typically expect for this time of year.
Compared with February 2026, in which 5,724 cases were reported, this is a similar level of reported cases.
So far in 2026, the country has recorded 19,608 cases-about 1.3x the expected level-so the season is above average to date.
The last month with reported cases is March 2026.
In Sri Lanka the average peak month is July.