For the Spanish guitar audio version, these platforms provide high-quality downloads:
Scribd hosts several user-uploaded PDF scores that include lyrics and notation. MP3 Downloads & Instrumental Tracks Spanish Guitar Cuando Calienta El Sol MP3 Download
MuseScore offers a solo guitar version with chords based on Javier Solís' performance. For the Spanish guitar audio version, these platforms
Carlos Rigual "Cuando calienta el sol" Sheet Music in C Major For the Spanish guitar audio version
You can find various arrangements for solo guitar, including versions with TAB and chords: