Zachary Horvath of
HotNewHipHop praised the song, describing it as "the vein with its boom-bap-inspired drum pattern and shimmering keyboard chords", stating: "Kali's message is a simple, but accurate one: love is how the world (and people) can heal. Her vocals are entrancing, angelic, and they simply just move your soul. Sincerely, is off to a great start and hopefully, the rest of the album will be just as good." Writing for
Uproxx, Flisadam Pointer said that the song "demonstrates that she’s found a way to channel those debilitating emotions into an evolved set of songs rather than banishing herself into void of bitterness." Kourtney Gierke of
ACRN wrote: "While "Sunshine & Rain…" is equally tranquil, romantic and catchy, it can’t help but not move her sound forward. For being one of the most consistent and hardworking artists of the decade, her sound has stayed stagnant. On the other hand, despite not having an audible evolution, her lyrics are just getting more and more personal and true to herself."
Pitchfork listed the song as the 80th best of 2025. == Charts ==