((full)): Season In Brazil

The Seasons of Brazil: A Study of Climatic Regionality and Meteorological Dynamics

| City | Summer (Dec-Feb) | Winter (Jun-Aug) | | :--- | :--- | :--- | | Manaus (Amazon) | Very hot, heavy rain | Warm, less rain | | Salvador (NE Coast) | Hot, humid | Warm, pleasant | | Brasília (Central) | Rainy, thunderstorms | Dry, cool nights | | São Paulo (SE) | Rainy, humid (22-28°C) | Dry, mild (12-20°C) | | Porto Alegre (South) | Hot, storms (22-32°C) | Cold, foggy (8-18°C) | season in brazil

The only region with well-defined thermal seasons. Summer is hot (above 30°C), Autumn features foliage change (rare in Brazil), Winter brings frost, fog, and occasional snowfall (e.g., in São Joaquim). Spring is marked by severe thunderstorms and hail. The Seasons of Brazil: A Study of Climatic

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| Season | Months (approx.) | Meteorological Characteristics | | :--- | :--- | :--- | | | December – March | High heat, high humidity, intense convective rainfall (thunderstorms), risk of flooding. | | Autumn | April – May | Gradual cooling, first dry spells in the interior, fog in the South. | | Winter | June – September | Coldest temperatures (especially South), peak of the dry season in the tropics, frost risk in the South. | | Spring | October – November | Rising temperatures, return of rainfall, strong winds and occasional hail. |

The Equatorial Amazon does not experience traditional seasons. Instead, it has a rainy season (December to May) with river flooding, and a dry season (June to November) with lower river levels and increased forest fires. Temperature variation is minimal (average 26-28°C year-round).

This densely populated region has a true tropical seasonality. Summer brings torrential, often catastrophic, rainfall (e.g., flooding in São Paulo). Winter (June-August) is mild (15-20°C) and dry, with the occasional passage of friagens (cold fronts from the South) dropping temperatures suddenly.