Colombian authorities and industry groups are calling for urgent preventive measures ahead of the imminent arrival of the El Niño phenomenon.

The weather pattern threatens the nation's water resources and energy stability, potentially triggering heat waves and severe drought that could disrupt the power grid.

Industry group XM said there is a need to expand thermal energy offerings to compensate for reduced hydroelectric capacity. This shift is seen as critical because the phenomenon typically brings reduced rainfall, which jeopardizes the country's primary energy sources [1].

Local governments have already begun implementing safety protocols. The Gobernación de Cundinamarca activated a preparation plan across 42 municipalities to mitigate the risks associated with the coming weather shift [2]. These efforts include coordinating with the National Unit for Disaster Risk Management (UNGRD) and the Mayor of Bogotá to ensure the capital is prepared for the environmental impact [3].

While some reports describe the arrival as imminent, others characterize it as a possible risk for the region [4]. However, current projections from sector groups suggest the phenomenon is expected to arrive in September 2026 [1].

Environmental agencies, including IDEAM, are monitoring the situation to provide updated data on rainfall patterns. The concern among officials is that a lack of preparation could lead to energy rationing, a scenario that has sparked alarms across the country [5]. Authorities said that inter-agency cooperation is the only way to prevent a systemic failure of water and power infrastructure during the peak of the heat wave.

“The phenomenon is expected to arrive in September 2026.”

The coordination between the energy sector and local governments indicates a high level of concern regarding Colombia's reliance on hydroelectric power. By pushing for increased thermal generation and municipal readiness months in advance, the government aims to avoid the economic instability and public unrest that typically accompany energy rationing during severe droughts.