
Brazil
Former world record, 8 Nov 2017
Rodrigo Koxa from Brazil once held the world record for the biggest wave ever surfed. On 8 November 2017 he rode a wave at Praia do Norte measured at 24.38 metres (80 feet), beating Garrett McNamara's mark from 2011. It was the record until Guinness confirmed Sebastian Steudtner's bigger wave from 2020.
Then, on 19 December 2025, aged 46, he did it again. An unofficial measurement put that day's wave at 29.15 metres, which would make it the biggest ever ridden. It won the men's Biggest Wave prize at the 2026 Big Wave Challenge awards, but Guinness hasn't ratified it, so for now it's a claim, not a record.
Koxa has said Nazaré once nearly took his life. His motto, "GoBigger", came out of that.
His 24.38 m world record wave, 8 Nov 2017.
8 November 2017, offshore of Praia do Norte
Our formula says: Super giant biggest wave about 21.0 m
Swell from the ERA5 reanalysis (Copernicus / ECMWF) at the hour of the ride. Biggest wave = 1.5 × sets, sets = 2.85 × swell × √(period ÷ 15) on this data scale. How we forecast
One email when giant waves (10 m+) show up in the models, usually 5 to 7 days ahead.
Photos: Walterpeitz (header), CC BY-SA 4.0; Fredodo64 (Justine Dupont), CC BY-SA 4.0; Humor Multishow (Lucas Chianca), CC BY 3.0; Walterpeitz (wave photo), CC BY-SA 4.0; Luis Ascenso (wave photo), CC BY 2.0; Carlos Eduardo Joos (wave photos 1, 2), CC BY 2.0, via Wikimedia Commons.