Monsoon to hit Kerala May 26: IMD predicts early arrival
The India Meteorological Department (IMD) has predicted that the southwest monsoon will arrive in Kerala on May 26, with a margin of error of plus or minus four days. This forecast indicates an early onset, nearly a week before the normal date of June 1, and marks the third consecutive year of an anticipated early arrival. While the early onset is a positive sign, the IMD also forecasts below-normal rainfall for the season due to potential El Niño conditions.
Key Highlights
- Southwest monsoon expected to reach Kerala on May 26.
- This is nearly a week earlier than the usual June 1 onset.
- Third consecutive year of predicted early monsoon arrival.
- El Niño conditions may lead to below-normal rainfall.
- Monsoon onset is crucial for agriculture and the Indian economy.
- IMD's monsoon onset forecast has a high degree of accuracy.
The India Meteorological Department (IMD) has issued its forecast for the onset of the southwest monsoon over Kerala, predicting its arrival on May 26, 2026. This date falls nearly a week ahead of the usual onset date of June 1, marking an early start to India's crucial rainy season. The forecast comes with a model error margin of ±4 days, meaning the monsoon could realistically arrive between May 22 and May 30. This anticipated early arrival continues a recent trend, as it would be the third consecutive year that the monsoon begins ahead of schedule. In 2025, the onset was on May 27 (forecasted for May 27), and in 2024, it was on May 31 (forecasted for May 31), according to IMD data. The IMD's operational forecasts for the monsoon onset over Kerala have historically demonstrated a high degree of accuracy, with predictions proving correct in all but one year (2015) over the past 21 years (2005-2025), with 'correct' defined as arriving within the four-day error window. The arrival of the monsoon over Kerala is a significant meteorological event, officially signaling the transition from the hot, dry summer to the life-sustaining rainy season. This transition is vital for the nation's agriculture, which is heavily reliant on monsoon rains for the cultivation of Kharif crops. The timely and adequate arrival of the monsoon also plays a critical role in replenishing water reservoirs, supporting hydroelectric power generation, and influencing rural incomes and the overall national economy. However, despite the forecast of an early onset, there are concerns about the overall quantum of rainfall for the season. Both the IMD and other weather agencies have indicated a possibility of below-normal rainfall this year, largely attributed to the potential development of El Niño conditions. El Niño, a warming of the Pacific Ocean surface, is historically associated with weaker monsoon rainfall over the Indian subcontinent, which can adversely affect agricultural output and water availability. The IMD uses a sophisticated statistical model for its onset forecasts, incorporating six key predictors. These include minimum temperatures over northwest India, peak pre-monsoon rainfall over the south Peninsula, Outgoing Longwave Radiation (OLR) over the South China Sea and Southwest Pacific Ocean, and zonal wind speeds in the lower and upper troposphere over specific equatorial Indian Ocean regions. The arrival of monsoon over the Andaman and Nicobar Islands and the south Bay of Bengal is also a precursor, with forecasts indicating its arrival in these regions within the next 24 hours. The monsoon typically journeys from the Andaman Sea to mainland India in about 10 days, though various atmospheric factors can influence its progression. The article also touches upon the IMD's continuous efforts to improve forecasting accuracy, including the recent launch of AI-enabled block-level forecasting systems. This advancement aims to provide more granular predictions, aiding in better disaster preparedness and agricultural planning at a local level. The overall forecast for below-normal rainfall underscores the complex interplay of climate patterns and their impact on India's agricultural backbone and economy. The early arrival, while welcome, will need to be monitored closely for its consistency and impact throughout the June-September monsoon season. The Times of India is generally considered a credible source, rated highly for trust by multiple surveys. Other reputable sources like The Hindu and NDTV also corroborate this forecast, with minor variations in the exact phrasing but consistent reporting on the key details. The article's factual basis is strong, drawing directly from the India Meteorological Department's official forecasts.
Frequently Asked Questions
When is the southwest monsoon expected to arrive in Kerala?
The India Meteorological Department (IMD) has predicted that the southwest monsoon is likely to arrive in Kerala on May 26, 2026, with a margin of error of plus or minus four days.
Is this an early or late arrival of the monsoon?
This is considered an early arrival, as the normal onset date for the southwest monsoon in Kerala is June 1. The predicted date of May 26 is nearly a week ahead of schedule.
What is the significance of the monsoon's arrival in Kerala?
The onset of the southwest monsoon over Kerala marks the official beginning of India's rainy season. It is crucial for agriculture, water resource management, and the replenishment of reservoirs, significantly impacting the country's economy.
Are there any concerns about the monsoon rainfall this year?
Yes, despite the early onset prediction, there are concerns about potentially below-normal rainfall for the season. This is attributed to the possible development of El Niño conditions, which historically tend to weaken monsoon rainfall in India.