Costa Rica Faces Water Rationing and Wildfire Risk as El Niño Deepens
A strong El Niño has taken hold over Costa Rica and will keep much of the country drier and hotter than normal through the rest of 2026, according to the Instituto Meteorológico Nacional ( IMN ), which expects the warm phase of the El Niño–Southern Oscillation to persist into early 2027. The institute’s early-warning system for the phenomenon has moved from watch to advisory, the threshold at which forecasters treat the event as essentially certain rather than probable, and officials have compared its likely strength to the 2014–2015 episode. The effect falls unevenly across the country: the Pacific slope and the Central Valley face significant rainfall deficits and rising temperatures, while the Caribbean is expected to stay near or above its normal rainfall. The institute’s projections have grown more severe over the course of the year. In April, IMN director Werner Stolz estimated a nationwide rainfall deficit of between 10 and 30 percent. By mid-year, Karina Her...