In 2026 so far, the reported cases are well below the expected number of cases. Cases are currently decreasing, as expected at this time of the year based on trends in previous years.
Data refreshed: 18 September 2026Some recent months include estimated values because official reports can arrive with delays.
In August 2026, Tanzania reported 10 dengue cases, slightly below what we would typically expect for this time of year.
Compared with July 2026, in which 62 cases were reported, this is a similar level of reported cases.
So far in 2026, the country has recorded 267 cases-about 0.2x the expected level-so the season is below average to date.
The last month with reported cases is August 2026.
In Tanzania the average peak month is January.
