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: 04 August 2026

Dengue cases in 2026

Compare to

Some recent months include estimated values because official reports can arrive with delays.

Current year: Reported cases Current year: Estimated cases (reported cases not available) Uncertainty: 95% prediction interval (validation-calibrated)

Further analysis

In July 2026, Sri Lanka reported 6,854 dengue cases, slightly below what we would typically expect for this time of year.

Compared with June 2026, in which 5,430 cases were reported, this is a similar level of reported cases.

So far in 2026, the country has recorded 46,156 cases-about 1.2x the expected level-so the season is above average to date.

The last month with reported cases is May 2026.

In Sri Lanka the average peak month is July.