Peru declares a state of emergency in 1,380 districts due to rains and warns of El Niño phenomenon ahead of Pope Leo XIV's visit

Peru’s government declared a state of emergency in 1,380 districts after identifying imminent danger from intense rainfall associated with El Niño 2026–2027. The decision covers districts in 24 departments and is intended to speed prevention and emergency assistance where communities face flooding and river overflows.

The measure was formalized through Supreme Decree No. 149-2026-PCM, published in El Peruano on November 3. It gives authorities a 60-calendar-day period to organize interventions in exposed areas. The article highlights possible damage to communities, roads, homes, crops, and public-service infrastructure.

The declaration comes as Peru prepares for Pope León XIV’s visit from November 11 to 17, including stops in Lima, Chiclayo, Cusco, and Pucallpa. Authorities are especially watching northern Peru. Forecasts indicate above-normal rainfall from November 2026 through January 2027, while El Niño Costero could remain extraordinarily strong until February 2027.

El Niño Costero is a climate pattern involving unusually warm ocean conditions near Peru’s coast. That warmth can alter the atmosphere above the eastern Pacific, increasing moisture and changing rainfall patterns along coastal and nearby inland areas. The article says Peru remains on alert for this phenomenon because it can intensify rainfall and raise flood risks.

Warm coastal water adds heat and moisture to the air. When that moist air moves inland and rises over terrain, it can produce more clouds and heavier precipitation. The article identifies the northern coast, central coast, western mountains, and parts of the central western highlands as areas expecting above-normal rainfall.

Enfen’s October 30 communication said El Niño Costero could reach an extraordinary magnitude through February 2027. It then expects gradual weakening through June. The emergency declaration reflects concern that this warm-ocean pattern could affect rivers, communities, transport routes, agriculture, and public infrastructure.

The affected area is exceptionally broad: the decree includes 1,380 districts distributed across 24 departments. Using Peru’s commonly reported total of 1,891 districts, the declaration covers about 73% of all districts nationwide. The article itself provides the emergency figure and the number of departments, but not Peru’s total district count.

This scale matters because the danger is not limited to one river basin or one city. The article points to possible heavy rainfall along the northern and central coasts, the western highlands, and the central western mountains. It also names river basins whose flows could rise above normal levels.

The declaration therefore gives authorities a wide geographic framework for prevention and response. Conditions will still differ locally, but the government is treating the threat as widespread. Monitoring and interventions will be especially important near vulnerable communities, transport routes, farms, and public-service infrastructure.

If rainfall exceeds normal levels, water can accumulate quickly and rivers can rise beyond their usual channels. The article warns of possible floods, river overflows, and damage to communities. It specifically says roads, homes, crops, and public-service infrastructure could be affected, disrupting movement, housing, food production, and essential services.

The risk is concrete in several basins. Tumbes, Chira, Piura, La Leche, and Jequetepeque could carry unusually high flows. Nearby settlements may face overflowing water, while roads and bridges can become difficult or impossible to use. Farms may suffer from inundation, and service networks may be damaged or interrupted.

Authorities are trying to reduce these effects before the worst conditions arrive. Rainfall is expected to be above normal from November 2026 through January 2027, and El Niño Costero could remain extraordinarily strong until February. Early warnings and preventive work are therefore central to the emergency plan.

Warmer-than-usual ocean water increases evaporation, placing more water vapor and heat into the atmosphere. That moist air can support taller clouds and stronger rainfall. Along Peru’s coast, changes in ocean temperature also influence winds and atmospheric circulation, helping shift where and how much rain falls.

When moisture-laden air moves toward land and rises over the Andes or nearby highlands, it cools and condenses into clouds. If the supply of moisture remains strong, rainfall can become intense or last longer. Rivers then receive more runoff from both direct rain and mountain slopes, increasing the chance of overflowing.

This mechanism helps explain the concern described in the article. Enfen expects above-normal rain in northern and central coastal areas and western mountain regions between November 2026 and January 2027. The agency says El Niño Costero could reach extraordinary strength before weakening gradually through June 2027.

The Commission Multisectorial for the National Study of the El Niño Phenomenon, known as Enfen, is maintaining an alert for El Niño Costero. It monitors oceanic, atmospheric, hydrological, and biological-fishing conditions. Authorities are also watching the Tumbes, Chira, Piura, La Leche, and Jequetepeque rivers because their flows could exceed normal levels.

Tracking these signals helps reveal whether rainfall and river conditions are worsening. Rising river levels can indicate a growing overflow threat, while weather and ocean observations help update forecasts. With that information, authorities can issue warnings, prioritize exposed locations, organize preventive work, and prepare assistance for nearby communities.

The article says continuous monitoring is needed to update forecasts and reduce the impact of rain. This matters during the expected wet period from November 2026 to January 2027. Better information cannot stop the rain, but it can give people and institutions more time to respond before flooding becomes severe.

A state of emergency signals that authorities consider the danger urgent and widespread. It creates a formal framework for concentrating government attention on threatened places instead of handling each problem only through routine procedures. Peru’s decree covers 1,380 districts because the expected rainfall risk extends across many regions.

The article specifically says the measure seeks to accelerate prevention and response interventions. That can help authorities coordinate assessments, prioritize vulnerable communities, organize resources, and act before floods or river overflows cause greater damage. The declaration also establishes a defined 60-calendar-day period for urgent work.

It does not remove the underlying weather threat. Enfen still expects unusually heavy rain in several regions and possible extraordinary El Niño Costero conditions through February 2027. The emergency framework is therefore a preparation tool: it helps institutions act faster while monitoring continues and forecasts are updated.