India will launch its first exchange-traded weather derivatives contract on June 1, 2026, marking the country's entry into the regulated climate risk market. According to reports from Reuters, the RAINMUMBAI contract has been approved by the Securities and Exchange Board of India (SEBI) and will be traded on the National Commodity and Derivatives Exchange (NCDEX). The product has been developed in collaboration with the Indian Institute of Technology Bombay and will use rainfall data provided by the India Meteorological Department. As reported by Reuters, under the campaign slogan "TradeRain," the new cash-settled futures contracts will allow companies to financially hedge against the volatile disruptions caused by Mumbai's annual monsoon season.
The cash-settled futures contract will be based on deviations in Mumbai's rainfall from its Long Period Average (LPA) during the monsoon season between June and September. As reported by Reuters, settlement prices will be calculated using rainfall data from IMD's Santacruz and Colaba weather stations. The contract will trade under the ticker symbol RAINMUMBAI with a tick size of 1 millimetre and a lot multiplier of ₹50 per millimetre deviation in rainfall. The maximum order size will be 50 lots and will trade Monday to Friday between 10 a.m. and 11:30 p.m./11:55 p.m.
The contract is built on a Cumulative Deviation Rainfall (CDR) framework using a 30-year historical rainfall dataset from 1991 to 2020, according to the exchange. According to Reuters, unlike conventional insurance products, weather derivatives are settled directly against observed weather data rather than physical loss assessments, enabling faster payouts and reducing operational complexity. The India Meteorological Department's observational infrastructure and long-term datasets provide a strong foundation for building credible and transparent rainfall indices. The trading system will rely on official rainfall deviation data compiled by the state-run India Meteorological Department to settle contracts.
The launch comes as climate volatility increasingly affects sectors such as agriculture, construction, logistics and power generation, creating demand for financial tools that can protect companies and institutions from erratic weather patterns. As reported by Reuters, the product is expected to benefit a broad range of participants, including farmers, infrastructure firms, power utilities, financial institutions and transport operators. According to CNBC TV18, NCDEX believes sectors such as agriculture, FMCG, banking, transport and power could increasingly use weather-linked contracts to manage losses caused by excess or deficient rainfall. Businesses in Mumbai—India's financial capital known for torrential monsoon rains—often face disruption during the four-month rainy season beginning in June, affecting supply chains, transport networks and infrastructure activity. These new contracts offer an innovative safety net for diverse sectors to manage weather risks outside of traditional insurance or slow-moving government relief funds.
NCDEX is now working on weather products tied to eastern monsoons as well as temperature-linked contracts that could help sectors manage risks from global warming and changing climate patterns. As reported by CNBC TV18, Managing Director & CEO Arun Raste said the exchange conducted extensive consultations with brokers, banks, farmers and industry participants before launching the product. With nearly half of India's economy directly or indirectly linked to monsoon activity, NCDEX believes weather derivatives could eventually become an important risk-management tool for businesses across sectors. The launch signals the emergence of a new climate-linked asset class in India as policymakers and businesses look for market-based tools to manage growing weather-related risks, with the Indian Institute of Technology Bombay developing the scientific framework and statistical validation supporting the rainfall index structure.
