| Natsu no Hi | |
| Cover: | Chisato Moritaka - Natsu no Hi.jpg |
| Type: | single |
| Artist: | Chisato Moritaka |
| Album: | Step by Step |
| Language: | Japanese |
| English Title: | Summer Day |
| B-Side: | Kowai Yume |
| Recorded: | 1994 |
| Length: | 3:45 |
| Label: | One Up Music |
| Composer: | Hideo Saitō |
| Lyricist: | Chisato Moritaka |
| Producer: | Yukio Seto |
| Prev Title: | Kibun Sōkai |
| Prev Year: | 1994 |
| Next Title: | Suteki na Tanjōbi/ Watashi no Daiji na Hito |
| Next Year: | 1994 |
is the 23rd single by Japanese singer/songwriter Chisato Moritaka. The lyrics were written by Moritaka and the music was composed by Hideo Saitō. The single was released by One Up Music on May 10, 1994. The song was used as the ending theme of TV Tokyo's variety show Asakusabashi Young Yōhinten.[1]
"Natsu no Hi" peaked at No. 5 on Oricon's singles chart and sold 409,000 copies.[2] [3] It was also certified Platinum by the RIAJ.[4]
Moritaka re-recorded the song and uploaded the video on her YouTube channel on August 10, 2012.[5] This version is also included in Moritaka's 2012 self-covers DVD album Love Vol. 1.[6]
All lyrics are written by Chisato Moritaka; all music is composed and arranged by Hideo Saitō.