Rainbow-coloured flags, towels and fans abounded among the crowd mostly made up of young people who danced and sang along to music blaring from speakers.
While the atmosphere was festive, some spoke of the threat of violence LGBTQ+ people face in Brazil.
Rio de Janeiro's pride parade is held on the city's famous Copacabana beach. (AP PHOTO)
"As the sister of a trans woman, I'm scared to death," said Helen Karajá, a 32-year-old bisexual artist.
At least 230 LGBTQ+ Brazilians were victims of violent deaths in 2023, according to the umbrella watchdog group Observatory of LGBTI+ deaths and violence in Brazil.
And more trans people — 100 — were murdered in Brazil last year than in any other country, according to Transgender Europe, a network of global non-profits that tracks the data.
To be sure, life for gay people is safer now than it used to be, said Carlos da Cunha, a 71-year-old hairdresser.
"In the past, people had to go to ghettos to meet people, because you couldn't just be anywhere," said da Cunha.
"Now, we can walk down the street without being attacked, without being insulted or humiliated."
One of the themes of this year's pride march was sustainability.
"Environmental justice will only be possible with racial and social justice, gender equality and sexual diversity" read one banner attached to a truck.
Brazil has faced a series of environmental catastrophes this year, including record drought in the Amazon rainforest, floods in the southern Rio Grande do Sul state, and wildfires across the country.
"If we can't respect the environment, how can we respect others?" said Alexia Soutinho, a 23-year-old student who identifies as pansexual.
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