Monsoon deficit 2026: rainfall gap 42% raises RBI risk

Sluggish monsoon start puts focus back on food inflation

India’s southwest monsoon has started slowly, with a widening rainfall deficit through June 2026. The shortfall has revived concerns around food inflation, rural purchasing power, and the outlook for agriculture-linked exports. Several regions have remained significantly drier than usual, as the season’s progress stayed below normal. In such years, the first set of macro signals tends to be watched closely because food prices and farm output can influence broader inflation and consumption trends.

The India Meteorological Department (IMD) has been cited for multiple deficit readings during June, underlining how quickly conditions changed week to week. One update pointed to a national rainfall deficit of 42.2% versus the long-period average (LPA) as of June 21, 2026. Another reference indicated the deficit had reached 46%, while a separate mention placed it at about 40% toward the end of June. The common takeaway across these updates is that rainfall has remained meaningfully below normal during a crucial sowing window.

IMD’s below-normal projection adds to uncertainty

The IMD has also projected below-normal southwest monsoon rainfall for 2026. The forecast cited rainfall at around 92% of the LPA for the year, after two consecutive years of above-normal rainfall. For the farm sector, such a projection matters because a large part of agriculture remains dependent on seasonal rains, and uneven distribution can affect both planting decisions and yields.

While pre-monsoon rainfall was reported to have improved after a weak start, that does not automatically offset a weak core monsoon. Cumulative precipitation for March 1 to April 3 was reported at 37.6 mm, 14% above the LPA of 33.0 mm. Reservoir levels were also noted as relatively comfortable early in the season, with water levels in 166 reservoirs at 85.69 billion cubic metres as of April 2, or 47% of total live capacity. That level was stated to be 16% higher than a year earlier and 27% above the 10-year average. Still, policymakers and businesses typically treat monsoon performance in June and July as more directly linked to kharif sowing and rural demand.

RBI flags monsoon risk to growth and inflation balance

The Reserve Bank of India has explicitly warned that deficient rainfall could complicate India’s growth and inflation outlook in the months ahead. It flagged below-normal monsoon rainfall as a key risk, with the national rainfall deficit widening to 42.2% as of June 21. This matters because the RBI’s policy trade-offs often become harder when food inflation rises even as growth momentum needs support.

The central bank expects GDP growth to moderate to 6.6% in 2026-27. Inflation is projected at 5.1%. A weaker monsoon, as highlighted in the context, could add pressure to this balance by raising food prices and squeezing rural consumption, even if parts of the economy remain supported by non-agricultural demand.

Macro signals remain mixed: industry, PMI and crude relief

Outside the monsoon, India’s near-term macro picture has been described as mixed. Industrial output grew 4.9% year-on-year in April under a revamped Index of Industrial Production (IIP) series using 2022-23 as the base year. Another cited data point said IIP growth reached a five-month high of 5.1% in May, driven by electricity and manufacturing. But a separate update in the same broader context noted May IIP rose by just 1.2% year-on-year, below a 2.3% estimate, highlighting uneven readings and potential base and classification effects.

Business surveys added another layer. The HSBC India Manufacturing PMI fell to 53.9 in March from 56.9 in February, described as a near four-year low and below the long-run average of 54.2. At the same time, services activity was cited as strong in June, with the services PMI at 60.4 and employment rising for the 37th consecutive month.

Crude prices were also mentioned as offering some relief from inflation worries. However, the unpredictable monsoon was described as a serious risk to rural purchasing power, prompting businesses to reshuffle portfolios to manage the impact of erratic rainfall on agricultural profits and consumer spending.

Fiscal numbers show widening in some snapshots

On the fiscal front, the context included multiple snapshots across periods. One update said India’s April-May fiscal deficit stood at ₹162,000 crore, widening year-on-year to 9.6% of the full-year aim (as presented in that specific reference). Another snapshot put the April-May fiscal deficit at ₹131,000 crore, or 0.8% of the relevant Budget Estimate.

There was also a separate reference to a strong early-year performance in another period, where the fiscal deficit for the initial two months was ₹13,163 crore, or 0.8% of an annual target of ₹1,569,000 crore. That improvement was attributed to a rise in total government receipts to ₹733,000 crore from ₹573,000 crore, even as expenditure increased to ₹746,000 crore from ₹624,000 crore and capital expenditure rose to ₹221,000 crore from ₹144,000 crore. These different data points reflect how fiscal outcomes can vary by year, base, and the specific period being discussed.

Key data points at a glance

Fiscal and activity indicators cited

Why the monsoon matters for markets and companies

A rain-deficient monsoon can affect inflation through food prices and can reshape demand in rural-heavy categories. It can also influence the trajectory of agricultural exports when production is volatile. The RBI’s caution reflects that deficient rainfall can complicate both growth and inflation dynamics, particularly if food inflation rises even while manufacturing demand softens.

The context also highlighted that market participants are tracking a range of domestic and external risks at the same time, including spillovers from the West Asia crisis. With industrial and survey data sending mixed signals, the monsoon becomes a high-frequency variable that can quickly alter expectations for consumption, inflation prints, and policy choices.

What to watch next

The immediate focus remains on how rainfall trends evolve after June and whether the deficit narrows during the core monsoon months. Investors and businesses are likely to track updated IMD bulletins, sowing progress, and food price movements alongside upcoming macro releases. On the policy side, RBI commentary on inflation risks and growth conditions will remain central as the balance between 6.6% growth expectations and a 5.1% inflation projection is tested by weather-linked volatility.