This afternoon, April 30, the National Center for Hydro-Meteorological Forecasting updated weather forecast information from now until the end of the holiday in areas across the country (ie from the night of April 30 to May 4).
The Northern and North Central regions will have scattered showers and thunderstorms. From the evening of April 30 to May 1, the two areas above will have scattered showers and thunderstorms, with some places having heavy rain. From January 2 the rain will decrease, the day will be sunny; there will be no signs of heat.

The Central Central and South Central regions have little rain, some places have hot weather.
In particular, the South Central region on 2.5 will have scattered showers and thunderstorms in some places.
The Central Highlands and the South will have sunny days, some places will have hot weather. From the evening of May 1 to May 4, there is a high possibility of showers and thunderstorms

The meteorological agency recommends that outdoor event organizers proactively take action against unfavorable weather, especially rain, strong winds, hot weather and flooding due to high tides. It is necessary to have a plan to cover equipment, set up a solid tent, and at the same time ensure that rescue, medical, and fire prevention and fighting vehicles are always ready.
On the part of the people, they should prepare umbrellas, raincoats, drinking water, etc., especially if participating in festivals, tourism activities or gathering in large crowds. Hot weather above 35 degrees Celsius can cause heatstroke and dehydration. Showers and thunderstorms can disrupt events, causing slippery and dangerous travel.
People should regularly update weather forecasts to have appropriate plan adjustments.