El Niño, a natural climate phenomenon that heats surface waters in the central and eastern Pacific, threatens the Philippines and other Pacific Rim economies.
The El Niño–Southern Oscillation cycle has three phases: El Niño, La Niña, and ENSO‑neutral conditions.
When El Niño develops, it typically brings drought to Southeast Asia, increased rainfall and flooding to parts of South America, higher global temperatures, and altered tropical cyclone activity and agricultural output.
Recent forecasts from the National Oceanic and Atmospheric Administration indicate a very high likelihood of El Niño this year, with probabilities of 82% for May‑July, 92% for June‑August, and 96‑98% from late summer through year‑end.
Given these projections, the event is expected to persist through much of 2026, coinciding with economic strains from global events.
In the Philippines, El Niño could cause below‑normal rainfall, drought in agricultural zones, food price inflation up to 12‑15%, water supply stress in major cities, and increased heat‑wave risk.
The exact impacts will depend on the event’s strength, timing, and local weather systems such as the southwest monsoon and tropical cyclones; recent flooding in Mindanao illustrates this variability.
Forecasts from the Philippine Atmospheric, Geophysical and Astronomical Services Administration estimate an 80% probability of El Niño affecting the country in the second half of 2026, while international centers project over 90%.
Government agencies, farmers, businesses, and households are urged to prepare for potential disruptions to water supply, agriculture, food prices, and energy demand through the end of 2026 and into early 2027.
Long‑term solutions to water shortages, exacerbated by El Niño, are essential, and hydropower is emerging as a viable alternative to fossil‑fuel electricity.
First Gen has announced a long‑term investment in pumped‑storage hydropower, adding capacity to its Pantabangan‑Masiway complex and the Casecnan facility, and developing a 120‑MW Aya Pumped Storage Project adjacent to Pantabangan.
Repower Energy Development Corp., a subsidiary of Pure Energy Holdings, is expanding its hydropower portfolio with the Piapi and Pulanai mini‑hydropower plants in Quezon and Bukidnon provinces.
Mini‑hydropower projects address flooding, irrigation deficits, potable water shortages, and energy supply gaps across the Philippines.
Spain’s historical water‑development policy under Franco emphasized small and medium‑sized dams, reservoirs, and irrigation projects to support agriculture and rural communities.
These projects aimed to irrigate dry farmland, supply water to rural areas, generate hydroelectric power, reduce vulnerability to drought and flooding, and encourage settlement.
Compared to large dams, smaller projects flooded less land, required fewer relocations, cost less, and were completed more quickly, serving specific local needs.
The Instituto Nacional de Colonizacion established agricultural villages linked to small reservoirs and irrigation schemes, boosting agricultural output and rural livelihoods.
Critics noted that even smaller projects could alter ecosystems and traditional farming patterns, though impacts were generally less severe than those of large reservoirs.
Engaging with the Spanish government and leveraging assistance could help replicate the success of Spain’s mini‑dam approach to address water shortages and seasonal flooding in the Philippines.
Spanish infrastructure companies, such as Acciona, are already active in the country and could contribute to future water‑management projects.
