If you wait each year for the first flush, the fresh spring leaf that opens Assam's tea calendar, this year's is a smaller and pricier crop. A near-rainless winter thinned it: the state made about 39% less tea in March 2026 than a year earlier, the Tea Board of India's monthly figures show, and less leaf at the source reaches the shelf as a scarcer, dearer flush.

The shortfall was steep. The Assam Valley produced 16.77 million kilograms in March, down from 27.75 million the year before, with the smaller Cachar district off too, to 0.61 million from 0.86 million. That dragged all of north India down 5.8% for the month even as West Bengal, which had its own rain, rose 37%.

The cause was the missing rain. Assam recorded a 97% rainfall deficit from January 1 to February 28, according to India Meteorological Department data the Indian Tea Association cited on International Tea Day, May 21. West Bengal ran 87% short over the same weeks. Those are the months that wake the bushes; rain missing then stunts the new growth, thins the first flush, and reaches the auction as a smaller, dearer crop.

The dry winter sits on a longer slide. Assam's output for the first ten months of 2024 was 577 million kilograms against 589 million a year earlier, a decline ETV Bharat reported at about 4%, and growers name the climate as the cause. "Assam tea has been suffering due to the impacts of the change in climate," said Bidyananda Barkakoty, an adviser to the North East Tea Association. "Tea is a weather-dependent crop and adequate rainfall, temperature and humidity impact its production."

Rajesh Kumar Dutta, secretary of the Small Tea Growers' Association in Assam, said heat is now part of the problem. "The tea growing areas in Assam should not have more than 30 degree Celsius temperature during the summer," he said. "However, we have seen that the minimum temperature goes beyond 40 degree Celsius these days." Small growers raise about 53% of the state's crop.

Assam grows its tea low and hot, on a humid floodplain rather than a cool hillside. That terroir gives the cup its malt, and it is also what leaves the crop exposed when the early rain fails.

Sources: Kisan India, "India tea production March 2026: Assam 39% drop, South India growth, West Bengal increase" (the March 2026 Tea Board figures); The Sentinel, "Indian Tea Association Flags Rising Costs, Climate Threats and Export Risks on International Tea Day" (the 97% and 87% IMD rainfall figures); ETV Bharat, "Assam's Tea Production Declines by 4% Due to Climate Change" (the 2024 production figures, the Barkakoty and Dutta quotes, and the small-growers share).