Brazil

Season running low

In 2026 so far, the reported cases are 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 October 2026

Dengue cases in 2026

Compare to

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

Further analysis

In September 2026, Brazil reported 63,952 dengue cases, well above what we would typically expect for this time of year.

Compared with August 2026, in which 112,509 cases were reported, this is a similar level of reported cases.

So far in 2026, the country has recorded 1,428,496 cases-about 0.7x the expected level-so the season is below average to date.

The last month with reported cases is September 2026.

In Brazil the average peak month is March.