Summer Sun is the tenth studio album by American indie rock band Yo La Tengo, released on April 8, 2003 by record label Matador.

The Hubley family piano went into Yo La Tengo's practice space in Jersey City, and became the center piece for the sound of the album.

Club reviewer Keith Phipps notes that "Summer Sun finds Yo La Tengo in a twilight mood, interspersing instrumentals and one elongated jam (the tellingly titled 'Let's Be Still') between atmospheric, quietly ingratiating pop songs.

[16] Greg Milner of Spin wrote: "Summer Sun sometimes sounds like a band treading water at low tide, but obsessively exploring the contours of a moment is what Yo La have been about from day one.

"[11] Andrew Unterberger of Stylus Magazine echoed similar sentiments, writing "Summer Sun, while constantly very good, is never creative, inspiring or great.