India is likely to see below-average monsoon rains for the first time in three years in 2026, the government said on Monday, stoking concerns over farm output and growth in Asia's third-largest economy as it battles inflation driven by the Iran war.
The monsoon, which typically arrives over the southern state of Kerala around June 1 and retreats by mid-September, is expected to reach 92 per cent of the long-period average this year, M. Ravichandran, secretary in the Ministry of Earth Sciences, told a news conference.
The India Meteorological Department defines normal rainfall as between 96 per cent and 104 per cent of a 50-year average of 87 cm (35 inches) for the four-month season.
"Currently weak La Nina-like conditions are transitioning to neutral conditions. But after June it's very likely that El Nino will develop," Mrutyunjay Mohapatra, director-general of the India Meteorological Department, said.
El Nino is a weather phenomenon that occurs when ocean temperatures in the central and eastern Pacific Ocean rise above normal, typically resulting in hot and dry weather in Southeast Asia and other parts of the world.
In the past, India has experienced below-average rainfall during most El Nino years, sometimes leading to severe droughts that destroyed crops and forced authorities to limit the export of some grains.
"But in the latter part of the monsoon season, positive Indian Ocean Dipole (IOD) conditions are likely to develop and that will help the monsoon," Mohapatra said.
The IOD is a climate pattern marked by differences in sea-surface temperatures between the western and eastern Indian Ocean.
A positive IOD, defined by warmer-than-normal waters in the western Indian Ocean, often supports stronger monsoon rainfall in India.