A cold air mass gains strength, turns into a cold wave, and could drop temperatures in the South and Southeast for several days, with a peak between May 12 and 13, advancing close to the central region of Brazil, and a risk of storms before the weather change.

Written by Carla Teles

Published on 03/05/2026 at 11:45

Updated on 03/05/2026 at 11:46

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Cold air mass advances over Brazil in the coming days, gains enough intensity to form a cold snap in the South and Southeast and may cause a widespread temperature drop, several frosty mornings, and storms before the stronger weather change

The cold air mass expected to advance over Brazil has gained strength in the latest projections and now outlines a broader and more lasting cold scenario, especially for the South and Southeast. What previously appeared as a more common cold air incursion now emerges with the potential to cause a cold snap, with several consecutive days of lower temperatures and a more intense peak between May 12 and 13.

The alert draws attention because the system is not expected to be restricted to the extreme south of the country. In addition to dropping temperatures in the South, the cold air mass should also reach the Southeast and advance close to the central region of Brazil. Before the stronger weather change, the scenario still includes a cold front, the possibility of storms, and the formation of a large offshore cyclone, which reinforces instability in the coming days.

What changes with the more intense cold air mass

Cold air mass turns into a cold snap with a cold front, storms, and a cyclone before the stronger drop in the South and Southeast.

A cold air mass gains strength, turns into a cold wave, and could drop temperatures in the South and Southeast for several days, with a peak between May 12 and 13, advancing close to the central region of Brazil, and a risk of storms before the weather change.

Cold air mass advances over Brazil in the coming days, gains enough intensity to form a cold snap in the South and Southeast and may cause a widespread temperature drop, several frosty mornings, and storms before the stronger weather change

What changes with the more intense cold air mass

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A cold air mass gains strength, turns into a cold wave, and could drop temperatures in the South and Southeast for several days, with a peak between May 12 and 13, advancing close to the central region of Brazil, and a risk of storms before the weather change.

Cold air mass advances over Brazil in the coming days, gains enough intensity to form a cold snap in the South and Southeast and may cause a widespread temperature drop, several frosty mornings, and storms before the stronger weather change

What changes with the more intense cold air mass

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