A broad dry-season signal
BMKG's outlook issued 14 September said about 81% of Indonesia's seasonal zones had entered the dry season. It identified 1,637 locations with more than 60 consecutive days without rain, concentrated especially in southern parts of the country. The agency linked the dry atmosphere to heightened concern about land and forest fires and smoke. A national percentage describes seasonal zones, not the share of households currently affected by smoke.
Local rain remains possible
The dry-season pattern does not mean every district stays rain-free every day. BMKG still expected local showers and strong winds in parts of Indonesia during 15–21 September. That combination matters: wind can spread smoke or worsen fire behavior, while short-lived rain may provide relief only in a small area.
The figures are tied to BMKG's first-ten-day September monitoring. For air quality or fire decisions, use current local BMKG and emergency-agency information rather than treating the national outlook as a ground-level measurement.