The Forecast That Millions Are Watching
The India Meteorological Department (IMD), which operates under the Ministry of Earth Sciences, has forecast that the Southwest Monsoon will advance over Delhi, Haryana, Punjab and Chandigarh within two to three days. The announcement, carried by All India Radio's news service News on AIR, has drawn intense attention across northern India, where residents have spent weeks watching the sky and checking forecasts as temperatures stay brutal. For a region that endures some of the most punishing pre-monsoon heat on the planet, the rains don't just change the weather — they reshape daily life, farming and public health for tens of millions of people.
Background: India's Monsoon and Its Northward March
The Southwest Monsoon is one of the most consequential weather systems on Earth, delivering roughly 70 to 90 percent of India's annual rainfall between June and September. It follows a broadly predictable northward path each year: landfall over the Kerala coast around June 1, a push through peninsular India and the northeastern states in the first two weeks of June, and arrival over Delhi around June 27.
The IMD has tracked and documented the monsoon since its formal establishment in 1875, giving India one of the longest meteorological records in Asia. In recent decades, though, climate scientists and IMD researchers have flagged growing variability in onset dates, rainfall distribution and seasonal totals. Rising sea surface temperatures in the Arabian Sea and the Bay of Bengal, alongside broader shifts in atmospheric circulation tied to global warming, are the primary drivers.
Northern India — Delhi, Haryana, Punjab and the union territory of Chandigarh — sits at the far end of the monsoon's northward advance. That geography means these areas endure the country's longest pre-monsoon heat season, with April through late June regularly producing some of the highest temperatures recorded anywhere in the world. This year has been no different. Multiple heat wave episodes have hit the region in 2025, straining power grids, water supplies and health services.
What Is Happening Now
According to the IMD's official forecast, atmospheric and oceanic conditions have aligned to support the monsoon's push into the remaining parts of northwest India. Officials said the necessary meteorological preconditions — sustained low-level southwesterly winds, sufficient moisture from the Arabian Sea and a weakening of the dry northwestern jet stream — are progressively falling into place.
The IMD described conditions across the region as transitional. Pre-monsoon convective activity is already picking up over parts of Rajasthan and western Uttar Pradesh, and increasing cloudiness with isolated to scattered rainfall has begun affecting areas near the monsoon's current northern limit — a clear sign the system's boundary is on the move. Authorities in Delhi, Haryana and Punjab have been warned to prepare for heavy to very heavy rainfall when the onset arrives, since first monsoon spells in these states often hit hard.
The National Disaster Management Authority and state-level disaster response agencies are on standby, with urban flooding the primary concern in low-lying parts of Delhi, where drainage infrastructure has long struggled with sudden high-intensity rain. Municipal bodies in Chandigarh and Gurugram have also reportedly started pre-monsoon drain-clearing operations to reduce waterlogging.
Key Players
The IMD remains the central institutional actor here, responsible for all official forecasts, warnings and advisories. Its Director General holds the authority to declare formal monsoon onset dates — declarations that carry real consequences for agricultural planning, water resource management and government policy.
The Ministry of Agriculture and Farmers' Welfare has a direct stake in the timing. Monsoon arrival triggers the formal start of kharif sowing advisories, and farmers across Punjab and Haryana — India's breadbasket — are ready to begin transplanting paddy and sowing maize, cotton and pulses. Even a few days' delay can compress growing windows and cut yields.
State governments in Delhi, Haryana, Punjab and the Chandigarh administration are focused on disaster preparedness and public communication. Urban local bodies, particularly the Delhi Municipal Corporation and the Delhi Jal Board, face particular scrutiny given the city's recurring monsoon flooding problems.
Then there is the general public — the hundreds of millions of Indians who search for tomorrow's weather on their phones every day during this season. For them, the monsoon means relief from the heat, lower electricity bills, replenished groundwater and the particular psychological lift that the first rains bring after months of punishing dry heat.
Regional and Broader Implications
The monsoon's advance over northwest India has consequences that reach beyond the immediate region. Pakistan's eastern provinces, particularly Punjab and Sindh, share atmospheric systems with northwest India and typically see their own monsoon onset shortly after the system consolidates over the Indian side of the border. Meteorological agencies in Islamabad watch IMD forecasts closely as early indicators for their own seasonal outlooks.
At a broader level, India's monsoon performance matters to global food commodity markets. India is the world's largest rice exporter and a major producer of sugar, cotton and pulses. A strong monsoon onset across Punjab, Haryana and Uttar Pradesh steadies expectations for kharif output and influences futures prices on international exchanges.
Climate researchers also treat each year's monsoon progression as a data point in assessing how South Asia's most critical weather system is responding to human-caused climate change. Studies published over the past decade have documented a shift toward more extreme rainfall — intense, concentrated downpours rather than steady, distributed rain — which can, in the same season, raise both flood risk and drought stress.
What Comes Next
In the short term, the IMD will issue updated forecasts every 24 hours as the monsoon's northern limit shifts. Once the system officially moves over Delhi, Haryana, Punjab and Chandigarh, a formal onset declaration will follow, triggering a wave of agricultural, administrative and public health advisories.
Meteorologists will be watching whether the advance into northwest India brings sustained, well-distributed rainfall or a sharp onset followed by a prolonged dry break — a pattern that has grown more common in recent years and creates serious problems for farmers who depend on steady soil moisture during the critical early weeks of the kharif season.
Looking further ahead, the IMD's long-range forecast for the full 2025 monsoon season will be updated in July, giving a revised read on whether total seasonal rainfall is likely to be normal, above normal or deficient. That assessment will feed directly into the government's food security planning, reservoir management and potential adjustments to minimum support prices for farm commodities.
For residents of Delhi, Haryana, Punjab and Chandigarh, the question is more immediate: will tomorrow finally bring the rains? On current IMD forecasts, the answer is very nearly yes.
