Also read: India’s monsoon to pause; IMD forecasts dry spell as El Nino intensifies

The revival is set to kick off over north-east India before sweeping across east, central, and north India early next week. Expect widespread downpours and thunderstorms, with heavy rain predicted for isolated pockets. For the central regions and the Gangetic plains, trapped under weeks of stifling, humid heat, this will bring the first genuine relief of the month.

What’s driving the comeback?

Driving this atmospheric comeback is a fresh low-pressure system brewing over the Bay of Bengal. In simple terms, a low-pressure area acts like a massive atmospheric vacuum cleaner; as the warm air within it rises, it aggressively sucks in moisture-laden winds from the sea, churning them into dense, rain-bearing clouds.

As this system pushes inland across the east coast toward Central India, it will pull the monsoon trough back where it belongs. Think of this elongated line of low pressure stretching across northern India as the spine of the monsoon, where the spine goes, the rain follows.

For weeks, this structural line had migrated north toward the Himalayan foothills, dumping heavy rain on the hills while leaving the plains parched. Once it hooks back south, it will unleash a double-barrel effect, drawing moist winds from both the Arabian Sea and the Bay of Bengal deep inland to cover a massive territory.

Break monsoon phase

India has been trapped in a classic “break monsoon” phase—a notorious seasonal lull where the weather trough drifts north, leaving Central India parched. A perfect storm of factors caused this slowdown: very few low-pressure systems brewed over the Bay of Bengal, Arabian Sea winds lost their punch, and sinking air over the mainland actively choked cloud formation.

Also read: Subdued monsoon leaves much of India dry; heavy rains batter Uttarakhand, Himachal, Bengal

The fallout? A massive 24 per cent nationwide rainfall deficit, with the country receiving just 244.6 mm of rain against the usual 323.1 mm and in a grueling 40°C temperature in many cities.

The real test

While next week’s downpours will cool the baking plains and provide a much-needed lifeline for farmers sowing rice, soybean, cotton, and pulses, a single burst won’t be enough. Erasing a deep seasonal shortfall requires steady, widespread rainfall sustained over several weeks.

The real test for this monsoon starts today, and August will ultimately dictate how the entire season is remembered.