From Rising Temperatures To Mega El Niño Fears: Why India Is Bracing For Extreme Heat

India is facing severe heat in April, with IMD warning of heatwave conditions across north, central and eastern regions for 4-5 days. Temperatures may rise further, with hot nights adding to discomfort. Scientists are warning of possible mega El Niño

Heatwave grips large parts of India

India is already facing intense heat even before the peak summer months begin. In April itself, temperatures have risen sharply across many states, and hot winds, known as “loo”, are making conditions worse.

The India Meteorological Department (IMD) has issued a warning that heatwave conditions are likely to continue for the next four to five days in several parts of the country. People in north, central and eastern India have been asked to stay alert and take precautions.

Which areas are most affected right now

Many states are already feeling the impact of the heat.

In north India, states like Delhi, Punjab, Haryana and Rajasthan are experiencing strong heat and dry winds. In central India, Madhya Pradesh and Chhattisgarh are also facing rising temperatures. Parts of Maharashtra and eastern India are not far behind.

Punjab districts such as Ludhiana, Sangrur, Fatehgarh Sahib and Patiala are under a yellow alert till April 24. Chandigarh and nearby areas are also seeing very hot weather.

In Delhi and the NCR region, temperatures are expected to cross 43°C and may even reach 44°C on April 22.

What the IMD has warned

The IMD has clearly said that the next few days will be very hot.

Next four days Punjab, Haryana, Rajasthan, Delhi, Chandigarh and Chhattisgarh will see rising temperatures Heatwave conditions will continue Next five days Uttar Pradesh, Jharkhand, West Bengal, Madhya Pradesh and Odisha may also face heatwave conditions

Maximum temperatures in north-west India may rise by up to 4°C. Night temperatures will also stay higher than normal, making it harder for people to get relief.

Why nights are also getting hotter

Usually, nights bring some cooling after a hot day. But this time, nights are also warm. This means:

• The body does not get enough rest from heat 
• Heat stress increases 
• Health risks become higher

This is one of the reasons why the current heatwave feels more difficult than usual.

What is a heatwave and why it matters

A heatwave is a period of very high temperatures, often combined with dry winds. In India, it becomes dangerous when temperatures stay very high for several days. Hot winds called 'loo' (in Hindi) can:

• Cause dehydration 
• Lead to heatstroke 
• Affect daily life and work

Children, elderly people and those who are already ill are at higher risk.

How early heat is raising concern

Experts are worried because the heat has started early this year.

By mid-April:

• Many areas have already crossed 40°C 
• Temperatures are rising faster than expected 
• Conditions feel like peak summer

This early rise suggests that the coming months may be even more intense.

The bigger concern: Mega El Niño

Apart from the current heatwave, scientists are also warning about a larger global weather pattern called El Niño.

El Niño is a natural climate event where the surface water of the Pacific Ocean becomes warmer than usual. It happens every 2 to 7 years.

But this time, experts say it could become a 'mega' or 'super' El Niño.

What is making this El Niño stronger

Scientists have observed a massive heat wave in the Pacific Ocean.

• It is about 8,046 kilometres long 
• It stretches from Micronesia to California 
• Near California, it is called 'The Blob'

This large area of warm water is making the El Niño stronger.

• Other factors include:
• Warm southern winds 
• Changes in ocean patterns
• Positive Pacific conditions

All these are adding to the strength of the system.

Why scientists are worried

Experts say this could be one of the strongest El Niño events in more than 140 years. The last major event in 1877-78 caused:

• Severe heatwaves 
• Drought 
• Crop failures 
• Disease outbreaks

It is believed that around 4% of the world’s population died during that period due to its effects.

Scientists now warn that a similar situation could happen again if the current El Niño becomes very strong.

How El Niño affects global weather

A strong El Niño can change weather patterns across the world. Possible effects include:

• Drought in India, Africa and Australia
• Increased heat in many regions 
• Heavy rainfall and floods in some areas 
• Changes in ocean life 
• Increased chances of wildfires

Weather patterns may become unstable and difficult to predict.

What it means for India

India is among the countries most affected by El Niño.

Higher temperatures

Temperatures during summer may rise above normal levels.

Weaker monsoon

Rainfall between June and September may reduce, leading to water shortages.

Drought risk

Some regions, especially north-west India, may face dry conditions.

Impact on farming

Less rainfall can damage crops and reduce food production.

How long the impact may last

If the El Niño becomes very strong:

• Effects may continue into 2027 
• Global temperatures may reach record highs 
• Weather patterns may stay unstable for a long time

Scientists are closely monitoring the situation.

Delhi and NCR: what to expect

The heat in Delhi and nearby areas is already severe.

• Temperatures may cross 43°C 
• Could reach 44°C around April 22 
• Both day and night will remain hot

Some relief may come after April 25, but overall April is already much hotter than usual.

Health risks during heatwave

Extreme heat can affect health in many ways. Common problems include:

• Dehydration
• Heat exhaustion 
• Heatstroke 
• Dizziness and weakness

In serious cases, it can even become life-threatening.

Who needs to be extra careful

Certain groups are more at risk of heatwave concerns:

• Children 
• Elderly people 
• People with illnesses 
• Outdoor workers

These groups should avoid direct sun and stay cool.

What people should do to stay safe

The IMD has advised simple steps to reduce risk.

• Avoid peak heat hours
• Stay indoors between 12 noon and 4 pm.
• Drink plenty of fluids

Water, coconut water, buttermilk and lemon water are helpful.

Wear suitable clothes

Light, loose and breathable clothes are best.

Watch for warning signs

If you feel dizzy, tired or sick, seek medical help quickly.

How to cope up with hot weather

Experts say both people and authorities must prepare. Important steps include:

• Saving water 
• Managing drought conditions 
• Providing cooling centres in cities 
• Issuing regular heat alerts 
• Supporting farmers with better crop options

Farmers are being advised to grow crops that can survive dry conditions.

Why preparation is important

Extreme heat is not just a short-term problem. It affects:

• Health Agriculture 
• Water supply Economy

Early planning can reduce damage and save lives.

India is already facing strong heat in April, and the situation may worsen in the coming weeks. The IMD has warned of continued heatwaves, while scientists are tracking a powerful El Niño that could make weather conditions even more extreme.

The coming months will be challenging. Staying informed, taking precautions and preparing in advance will be key to handling the heat safely.