Monsoon Deficit 2026: India Records Fourth-Lowest Rainfall Since 2001

Monsoon Deficit 2026: India Records Fourth-Lowest Rainfall Since 2001

General Studies Paper III: Geography, Disaster Management, Government Policies

Why in News?

India’s 2026 southwest monsoon ended with a 13% rainfall deficit. This seasonal total represents the fourth-lowest cumulative rainfall level recorded nationwide since 2001.

2026 Monsoon Performance: Rainfall Deficit and Regional Variations

• Overall Rainfall: The Southwest Monsoon 2026 ended with India receiving 759.4 mm rainfall against the Long Period Average (LPA) of 868.6 mm.
  • This equals about 87% of LPA, making 2026 the fourth-lowest monsoon rainfall since 2001 and the 13th-lowest since 1901. 
• Onset and Withdrawal: The monsoon advanced early over the South Andaman Sea on 16 May, but reached Kerala on 4 June, three days later than the normal 1 June date.
  • It covered the entire country by 9 July, almost on schedule. 
  • India recorded 1,765 very-heavy rainfall events and 388 extremely-heavy rainfall events during June–September.
  • Withdrawal began from West Rajasthan on 19 September, two days later than normal.
• Seasonal Pattern:June received only 65% of LPA, creating a severe early-season moisture gap. July recovered to 101%, mainly because of strong rainfall over Central India.
  • However, rainfall again weakened in August, reaching only 84%, while September received 92% of LPA. 
• Regional Contrast: The most important feature was spatial inequality.
  • Northwest India received 94% of LPA, while Central India received 97%, both within the normal range. 
  • In contrast, East and Northeast India received only 74%, while the South Peninsula received 76%. 
  • Meghalaya was the worst hit with a staggering 60% deficit, followed closely by Manipur at 45% and Arunachal Pradesh at 44% below normal.
  • Individual states faced heavy shortages, including Karnataka at 30%, Kerala at 28%, and Andhra Pradesh at 24% below normal levels.
  • Sikkim recorded 10% excess rain, while Nagaland registered 6% and West Bengal saw 2% more than average. 
  • The union territories of Dadra and Nagar Haveli and Daman and Diu experienced a 37% rainfall surplus.
• Monsoon Core Zone: The Monsoon Core Zone, covering a large part of India’s rain-fed agricultural belt, received 779.9 mm rainfall.
  • This was below its normal range of 782.8–881.2 mm. 
• Variation: Of India’s 36 meteorological subdivisions, 18 subdivisions, covering about 53% of the country’s area, received normal rainfall. Odisha, covering about 5%, recorded excess rainfall.
  • At district level, 282 of 741 districts recorded below-normal rainfall and another 34 districts recorded significantly below-normal rainfall. 

Meteorological Causes

• El Niño: The primary driver behind the suppressed seasonal rainfall was the early emergence of the El Niño climate pattern in June 2026, which intensified to a moderate-to-strong state.
  • Historically linked to monsoon failure in India, this El Niño weakened the monsoon circulation over the Indian subcontinent. 
  • Ocean models indicate that these conditions will peak through November and likely persist until March 2027.
• Indian Ocean Dipole: The Indian Ocean Dipole (IOD) was another important factor. Early forecasts suggested that positive IOD conditions could develop toward the latter part of the monsoon.
  • However, the final IMD assessment shows that the IOD remained neutral throughout the 2026 Southwest Monsoon. 
  • Therefore, a potentially favourable positive-IOD influence did not materialise strongly enough to offset the El Niño-related suppression.
• Madden-Julian Oscillation: The Madden-Julian Oscillation (MJO) remained in an unfavorable phase throughout a large portion of the four-month season.
  • This lack of convective atmospheric support globally restricted cloud formation over the Indian Ocean. Consequently, it suppressed active monsoon spells and triggered unusually long dry spells.
• Low-Pressure Systems: Interestingly, the season produced 14 low-pressure systems, including six monsoon depressions, of which three intensified into deep depressions.
  • There were 77 low-pressure-system days, compared with the normal 57 days. 
  • In July, persistent systems particularly benefited Central India, producing normal-to-excess rainfall.

Impacts of Monsoon Deficit India 2026

• Geographical Impact: 
  • The India Meteorological Department (IMD) reported that 17 out of 36 meteorological subdivisions officially closed the season with “deficient” rainfall, creating islands of deluge amid massive arid stretches.
  • East and Northeast India bore the worst brunt of the meteorological drought, recording a 26% seasonal deficit.
    • Heavily parched areas were concentrated across Bihar, Jharkhand, eastern Uttar Pradesh, and north Bengal. 
  • According to the IMD Standardised Precipitation Index (SPI), over 218 districts actively exhibited moderate, severe, or extreme drought conditions during the peak weeks of August and September.
  • Regional water distribution was deeply fragmented; for instance, out of 33 districts in Telangana, 18 districts were officially classified as rainfall deficient, while individual mandals reported large deficits.
• Agricultural Consequences:
  • The delayed and erratic monsoon directly contracted the national Kharif crop area to 1,096.49 lakh hectares. Water-stressed farmers were forced to reduce sowing, causing a noticeable decline in standing paddy (rice) acreage. 
  • The spatial unevenness of the monsoon caused total kharif crop sowing to contract by 1.2% year-on-year, dropping down to 110.7 million hectares by late September.
    • The decline was primarily led by a reduction in paddy (rice), cotton, and maize fields, as farmers adjusted to delayed and erratic rains.
  • Widespread soil-moisture depletion heavily impacted output predictions for critical crops, including soybean, cotton, peanuts, and pulses.
    • Market analysts project that national rice production could fall by 10 million tonnes. 
    • Critical agricultural zones in Maharashtra and Karnataka faced severe moisture stress during the reproductive phase of crops like soybean and pulses.
  • Because rabi crops rely entirely on residual soil moisture and groundwater, the 24 percentage point deficit in southern reservoir storage is projected to depress farm incomes and weaken rural consumer demand in the second half of the fiscal year.
• Economic and Ecological Implications:
  • The 2026 monsoon deficit has severely disrupted India’s domestic food supply chain.
    • Retail food inflation has indeed been rising, climbing to 5.95% by August, and pushing higher due to supply chain tightening in pulses, maize, and rice.
  • Water storage across the monitored major reservoirs stands at 70% of their combined capacity (covering 178 major reservoirs), which is below the 10-year average of 76.62%.
    • The low water levels have raised severe concerns regarding drinking water security, rabi crop irrigation, and hydropower generation.
  • Due to the El Niño-induced shortfalls, the central government lowered its total foodgrain production target for 2026–27 by 2.63 million tonnes, fixing it at 373.93 million tonnes.
    • The sub-par harvest yields present immediate upside risks to food inflation for staple commodities.
  • The drastic drop in reservoir heads has heavily constrained India’s renewable energy generation.
    • Hydroelectric power plants saw a steep double-digit decline in electricity generation, forcing grid operators to increase reliance on coal fired plants. 
    • This shift has complicated India’s green energy transition goals while triggering widespread rotational power outages across power-hungry rural sectors.

Government Response: Climate-Resilient Monsoon Management

• Data-Driven Crop Planning: The Ministry of Agriculture orchestrated a district-level vulnerability assessment targeting 150 to 200 high-priority, rain-fed districts to re-engineer sowing schedules according to localized moisture profiles.
• Crop Diversification Push: High-level central directives led by the Union Agriculture Ministry forced a systematic pivot away from water-guzzling crops toward climate-resilient, less water-dependent pulses, oilseeds, and millets. 
• Agrometeorological Outreach: State agencies expanded mobile-based advisory grids via platforms like Meghdoot and Mausam to deliver real-time, localized instructions regarding pest control, dynamic sowing shifts, and weather fluctuations directly to farmers. 

• Policy Integration at IIWW 2026: Concluding the 9th India International Water Week (IIWW) 2026 under the theme “Climate Resilient Water Management”, the Ministry of Jal Shakti institutionalized community-led approaches and digital water tracking. 
• The “Jal Sanchay Jan Bhagidari: Catch the Rain” Initiative: Launched in mid-2026, this campaign unified decentralized groundwater recharge and rainwater harvesting by converging schemes like Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) and corporate water stewardship mandates.
• Groundwater and Micro-Irrigation Scaling: Through the Per Drop More Crop component of PMKSY, the government expedited subsidies for localized drip and sprinkler systems, which retain crop productivity while slashing agricultural water use by 30% to 50%.

• Launch of Mission Mausam: The Ministry of Earth Sciences introduced Mission Mausam to advance India’s numerical modeling, physical weather understanding, and next-generation AI-driven forecasting networks.
• Radar Network Expansion: To overcome the localized unpredictability of climate-induced convective extremes, the India Meteorological Department (IMD) accelerated plans to expand its Doppler radar network from approximately 40 to 70 units. 

• Drought Management Code Activation: State governments utilized the National Agricultural Drought Assessment and Monitoring System (NADAMS) to trigger formal drought assessments; for instance, Maharashtra declared drought across 74% of its talukas to deploy state and national disaster relief funds (SDRF/NDRF).
• Asset Creation under MGNREGA: Rural labor under employment guarantee frameworks was systematically redirected toward executing watershed interventions, including the excavation of farm ponds, check dams, and local wetland rejuvenation. 

Frequently Asked Questions (FAQs):

1. What is the monsoon deficit in India in 2026?
India’s 2026 southwest monsoon rainfall was about 13% below normal, at 87% of LPA.

2. Why did India record its fourth-lowest rainfall since 2001?
The deficit resulted from El Niño, uneven rainfall distribution, weak spells, and regional rainfall shortages during the season.

3. What was India’s total monsoon rainfall in 2026?
India received approximately 759.4 mm rainfall, against the 868.6 mm long-period average during June–September. 

4. Which regions recorded the highest rainfall deficit in 2026?
East and Northeast India recorded about 26% deficit, while South Peninsular India recorded about 24% deficit. 

5. How does the monsoon deficit affect Indian agriculture?
Monsoon deficits reduce soil moisture, irrigation availability and crop yields, particularly affecting rain-fed farming, sowing and rural incomes. 

Disclaimer: Information in this article is based on official announcements and public records. Details may evolve over time.

Also Read: IMD Forecasts Below Normal Monsoon for 2026