"Beach Baby" received positive reviews in American music trade media upon its release in 1974, with comparisons to American rock group
The Beach Boys.
Record World called First Class the "English answer to the Beach Boys with strings" and anticipated this song to be "a big summer novelty debut." Similarly,
Cash Box called the song "reminiscent of the early Beach Boys" and praised the song's composition for a "perfect surfin' arrangement".
Billboard named "Beach Baby" as one of the best tracks on the First Class' eponymous album.
Los Angeles Times music critic
Robert Hilburn, in a 1996 review of a Tony Burrows compilation album, considered "Beach Baby" to be the "most interesting" track because of its "zesty Beach Boys spirit". In 2002, Robin Carmody of British online magazine
Freaky Trigger wrote that the song marked the end of the original wave of British
bubblegum pop, indicating the transition into a period of
pastiche "and paying tribute to the American pop of a decade or so before, rather than being gloriously unselfconscious and picking up on what was hot at that moment, always a sign that a genre has reached the end of line." He deemed it a "fantastically-produced slice of Californian fantasypop – orchestra, brass, lavish vocal harmonies, already a tribute song to a vanished era at the time." Further including it in a list of the genre's classics, he described it as "Britgum's dying fall: put the fade on repeat play and hear pop, for the first time, become pure period pastiche. ==Chart performance==