Active Monsoon Likely Over Next Two Weeks as Indian Ocean Conditions Turn Favourable

India is likely to experience a more active phase of the southwest monsoon over the next two weeks as atmospheric and oceanic conditions become increasingly favourable for widespread rainfall across several parts of the country. Although the Indian Ocean Dipole (IOD) remains in a neutral phase, meteorologists say evolving weather patterns over the Indian Ocean and Bay of Bengal are expected to strengthen monsoon activity.

Climate experts are closely monitoring global weather drivers, including El Niño, the Indian Ocean Dipole (IOD), and the Madden-Julian Oscillation (MJO), as they could significantly influence the remainder of India's 2026 monsoon season.

Key Highlights

• Southwest monsoon is expected to remain active across India for the next two weeks.
• The Indian Ocean Dipole (IOD) continues to remain in a neutral phase.
• Strong thunderstorm activity persists over the eastern Indian Ocean.
• Madden-Julian Oscillation (MJO) is moving into a rain-supportive phase over the Bay of Bengal.
• Scientists are monitoring El Niño's impact on the evolving monsoon pattern.

Monsoon Conditions Becoming More Favourable

Weather experts say atmospheric conditions are gradually aligning to support a stronger monsoon spell across the country. Rain-bearing systems over northern and eastern India have become increasingly active, while weather developments over the Bay of Bengal are expected to enhance rainfall during the coming fortnight.

Although the Indian Ocean Dipole has not yet transitioned into a positive phase, current conditions indicate that widespread rainfall is likely across several regions.

Indian Ocean Dipole Remains Neutral

According to climate scientists, the Indian Ocean Dipole (IOD) currently remains neutral, meaning sea surface temperatures across the western and eastern Indian Ocean have not yet developed the contrast typically associated with a positive IOD.

At present, weather patterns over the eastern tropical Indian Ocean continue to be influenced by:

• Tropical westerly winds
• Typhoon activity over the western Pacific
• The strengthening effects of El Niño

Meanwhile, the southeasterly trade winds usually associated with a positive IOD are yet to become established.

Strong Thunderstorm Activity Signals Active Atmosphere

Despite the neutral IOD, meteorologists note that thunderstorm activity remains intense over the eastern Indian Ocean, indicating that atmospheric conditions continue to support cloud formation and rainfall.

Scientists point out that the Indian Ocean's relatively smaller size allows ocean-atmosphere interactions to evolve rapidly, meaning weather patterns can shift within a short period.

Could El Niño Trigger a Positive IOD?

Climate experts are also monitoring the evolution of El Niño, which could influence the development of a positive Indian Ocean Dipole later in the season.

A positive IOD often helps offset some of El Niño's negative impact on India's southwest monsoon by enhancing moisture transport toward the Indian subcontinent.

While there is no confirmation yet, meteorologists believe the coming weeks will be crucial in determining whether this transition occurs.

Cooling Waters Near Indonesia Under Observation

Scientists have also observed gradual cooling of sea surface temperatures around Indonesia and the island of Java.

This cooling is linked to seasonal upwelling, a natural ocean process in which colder, nutrient-rich water rises from deeper layers to the surface.

Rainfall patterns over Indonesia are closely connected to these oceanic changes and can influence weather conditions across the wider Indo-Pacific region, including India.

Madden-Julian Oscillation to Support Rainfall

Another important factor strengthening India's rainfall outlook is the Madden-Julian Oscillation (MJO).

Meteorologists say the MJO is moving into a phase favourable for increased cloud formation over the southern Bay of Bengal, creating conditions that can generate additional rain-bearing systems affecting large parts of India.

This large-scale tropical weather pattern is expected to contribute significantly to the active monsoon spell over the next two weeks.

What It Means for India's Monsoon

The combined influence of active atmospheric systems, strong convection over the Indian Ocean, and a favourable MJO phase is expected to keep the southwest monsoon vigorous through the coming fortnight.

While the Indian Ocean Dipole has not yet strengthened, evolving climate signals suggest that the second half of the monsoon season could remain dynamic. Meteorologists will continue monitoring ocean temperatures and atmospheric circulation to assess their impact on rainfall distribution across the country.

Frequently Asked Questions (FAQs)

1. Why is the monsoon expected to become more active over the next two weeks?

Favourable atmospheric conditions over the Indian Ocean and Bay of Bengal, along with an active Madden-Julian Oscillation, are expected to strengthen rainfall across many parts of India.

2. What is the Indian Ocean Dipole (IOD)?

The Indian Ocean Dipole is a climate pattern based on sea surface temperature differences between the western and eastern Indian Ocean, which can significantly influence India's monsoon.

3. Is the Indian Ocean Dipole currently positive?

No. According to climate experts, the IOD remains in a neutral phase and has not yet developed into a positive event.

4. How does El Niño affect India's monsoon?

El Niño generally weakens the Indian monsoon by altering global atmospheric circulation, although a positive IOD can sometimes reduce its adverse effects.

5. What is the Madden-Julian Oscillation (MJO)?

The MJO is a moving tropical weather system that influences cloud formation and rainfall. Its current phase is favourable for increased rainfall over the Bay of Bengal and India.