"Rain on Me" received widespread critical acclaim following its release, with several outlets considering it one of Gaga's strongest releases. Many critics praised the track's euphoric production and emotional tone, frequently describing it as a cathartic and empowering dance anthem. Adam White of
The Independent called it "three minutes of euphoric melodrama" and a "theatrical and replenishing triumph", while Joey Nolfi of
Entertainment Weekly wrote that the song takes listeners "to sonic heaven" with its "therapeutic banger" energy. Mikael Wood of the
Los Angeles Times similarly described it as a "fist-pumping self-empowerment jam". Reviewers also highlighted the chemistry between Lady Gaga and Ariana Grande, emphasizing how their vocal interplay strengthens the song's impact. Rania Aniftos of
Billboard praised the track for foregrounding the powerful vocals of both Grande and Gaga. Althea Legapsi of
Rolling Stone labeled the track "rejuvenating", noting its call-and-response structure as the singers "tout the rejuvenating aspects of the situation, despite the metaphorical bad weather sentiments." Quinn Moreland of
Pitchfork likewise praised the emotional connection between the two artists, writing that the song "draws its power from two women connecting on an emotional level." Dave Quinn of
People singled out Grande's "signature high note octaves" alongside Gaga's "bold voice". Matt Melis of
Consequence wrote that "Gaga and Grande have vocal chops for miles", and called it a "dynamite feature". He also highlighted its uplifting message: "No matter how bad the storm gets, we will endure and perhaps come out a little cleaner on the other side for the pain." Several critics focused on the song's large-scale pop craftsmanship and emotional intensity.
Billboard staff ranked "Rain on Me" as the second-best track on
Chromatica, citing its uplifting songwriting and the "tour de force" production. Allison Stewart of
The Washington Post described it as a "big-voiced superdiva summit" that is "engineered to be irresistible". In a rave review, Brenden Wetmore of
Paper felt "Rain on Me" is "absolutely electric by its end, having charged up enough raw emotion and heartbreak to power an entire circuit party's worth of strobe lights." Chris DeVille of
Stereogum also pointed to the song's "genuine catharsis". A less enthusiastic reaction came from
Slant Magazine Alexa Camp. While she viewed "Rain on Me" as a step up from the prior single "
Stupid Love", she described it as "two overzealous vocalists duking it out to see who can out-sing the other over the course of the track's three chart-maximizing minutes" and criticized the song's bridge.
Year-end lists "Rain on Me" was considered one of the best songs of 2020 by many critics. Journalists from
Billboard,
The Guardian, and the
Official Charts Company all named it the year's top song, receiving praise for its transcendent quality, the chemistry between Gaga and Grande, and its polished, uplifting pop sound. Chris DeVille from
Stereogum selected "Rain on Me" as the best pop song of 2020, calling it an "epic" dance track that "finds euphoria in resilience." Lindsay Zoladz of
The New York Times ranked the song as the year's fifth best, contrasting it with Gaga's debut single "
Just Dance" (2008) by noting that it is not about partying while blackout, but about the importance of partying on in spite of past trauma. Mikael Wood of the
Los Angeles Times described the song as "a touchstone of the early-
COVID era", emphasizing how its message of resilience shaped its reception. Writing for
Vulture, Kristen S. Hé reflected that the track—alongside
Dua Lipa's
Future Nostalgia—served as one of the few sources of unfiltered joy during the darkest months of 2020, becoming inseparable from memories of loss, growth, and healing. Brittany Spanos of
Rolling Stone similarly characterized "Rain on Me" as a surge of optimism and energy that resonated powerfully amid the uncertainty and pain of that period, framing it as a life-affirming release whose significance has become clearer in hindsight as enjoying music in shared, public settings once again became possible. Carly May Gravley of the
Dallas Observer likewise referred to the track as "the unofficial dance anthem of the year when no one was dancing." ==Commercial performance==