What to WearRio’s beach culture is genuinely central to daily life, and swimwear, including the famously minimal Brazilian-style bikini, is entirely normal at Copacabana, Ipanema and the city’s other beaches, worn without the self-consciousness that might apply elsewhere. This relaxed norm does not extend much beyond the immediate beach area, however — a cover-up or light clothing is expected once you step onto the main beachfront avenues or into shops and restaurants.
Light, breathable fabrics suit Rio’s consistently warm, humid climate through most of the year. Cotton and linen handle the heat better than synthetic fabrics, and quick-dry materials are practical given the likelihood of getting caught in a sudden tropical downpour, which Rio experiences regularly even outside the official rainy season.
Comfortable walking shoes with good grip matter for the steeper parts of the city, particularly the Santa Teresa neighbourhood’s hilly cobblestone streets and any hiking routes toward the various viewpoints beyond Corcovado and Sugarloaf.
A practical safety note rather than a style consideration: visible expensive jewellery, watches and camera equipment are best minimised in certain areas of the city, and dressing in a way that doesn’t obviously signal tourist wealth is sensible street awareness in parts of Rio, consistent with most major Latin American cities.