Meteorologists from Climatempo have predicted that autumn 2026 in the Alto Tietê region of Brazil will feature warmer temperatures and slightly more rainfall than usual. This season, which begins on March 20 and continues until June 21, 2026, will see shorter days and cooler nights. However, the anticipated drop in temperatures and rain typical of autumn may not occur as expected, leaving residents longing for the seasonal relief that is usually welcomed at this time of year.

Meteorologist Josélia Pegorim noted that autumn 2026 will be "less cold than it could be," indicating a shift in weather patterns that may prolong the warmth. The autumn weather will be influenced by the Coastal El Niño phenomenon, observed since January, which tends to disrupt typical weather behaviors and expectations. This unusual climate pattern is expected to delay the arrival of significant cold temperatures, compelling residents to adjust their seasonal activities and attire accordingly.

As the season approaches, local communities will need to prepare for these atypical weather conditions. The combination of warmer days and extended rainfall could impact various sectors, including agriculture, outdoor events, and general day-to-day activities for residents in Alto Tietê. The implications of these weather predictions are significant, as they challenge the conventional understanding of seasonal changes in this region and highlight the ongoing effects of climate variability.