Experts say El Niño and climate change might cause very bad weather like very hot days, big storms, and unpredictable rain.

The biggest worry is El Niño coming back in the second half of the year.

Experts think there is an 80-90% chance El Niño will happen between mid-2026 and late 2026.

Some experts think a big El Niño might happen at the end of the year and go into 2027.

El Niño is a weather pattern that happens when the sea is too warm in the Pacific Ocean. It usually lasts 9-12 months.

The World Meteorological Organization says the sea is getting warmer, which means El Niño might happen between May and July.

When El Niño happens, the weather gets very mixed up.

Experts say dry periods and hot days get worse, and storms get stronger and less predictable.

In southern Vietnam, the rainy season will start late and end early.

In the past, El Niño made the rainy season start very late in some cities.

It has been very hot in Vietnam already this year.

In the north and some central provinces, it was over 40 degrees Celsius in March and April.

Southern Vietnam has been very hot since February and it's still hot in April.

Although it rained a little in May, the heat is not going away.

Experts think the heat is because of changes in the air that make heatwaves last longer.

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At the same time, there have been bad storms in northern and central Vietnam.

Some provinces have had many storms with strong winds and big hail.

The hail was as big as eggs or tennis balls and damaged many things.

An expert said these storms are not normal and are happening because of El Niño.

He said it's rare to have so many hailstorms in many areas at the same time.

Experts think there will be more storms and hail in the coming months.

Experts say we need to improve our weather forecasts and prepare for disasters because of the bad weather.

Bao Anh