[Verse 1]
Natsu no hikari ga kudake chiru umibe
Hitomi o toji te ano koro o omou
Nare sugita koi ni senaka muke ta mama de
Wakareru jiyū mo ubatta ano kisetsu

[Chorus]
Summer blue , summer blue
Aisa nai batsu sa

[Verse 2]
Shiroi sakyū ni terikaesu hizashi
Kuwae ta tabako shiokaze ni shimiru
Tōrisugi ta koi wa umi no soko de nemure
Dangai kudakeru nami no yō na kisetsu

[Chorus]
Summer blue , summer blue
Aise nai tsu sa

[Verse 3]
Kitto ashita wa kibun sae kawari
Tokai no naka de iki te yuku daro u
Nobi te yuku kage o hitori mitsume nagara
Nani mo nai natsu ga niaisugiru kisetsu
[Chorus]
Summer blue , summer blue
Sora dake ga aoi
Summer blue , summer blue
Sora dake ga aoi