Upon its release, Holidays in the Sun was met with generally positive reviews from music critics, many of whom complimented the singles, composition, and labelled it as Yui's strongest album to date.

Yui promoted the album on her Hotel Holidays in the Sun tour, which ran from September to November 2010 in major cities across the Japanese archipelago.

In early June 2010, Japanese recording artist Yui announced that she would release her first original album in about two years and three months.

[5] In an interview with the magazine ORISUTA, she described Holidays in the Sun as a bright, sparkling, and fun album that was made it with the image of someone who would want to listen to it while driving in the summer.

[6] Furthermore, she stated that her range of emotions has broadened to include being happy and having fun, and she became able to concretely express the ideas that popped into her head.

"[7] Holidays in the Sun opens with the track "To Mother", a pop ballad that conveys the feelings for a "precious person" in one's heart.

"[10] "Parade" is the third track on the album, and it is a light acoustic bossa nova-like song that was recorded with a live accordion.

[12] The fifth track on the album is "Shake My Heart," a large-scale number with a rich sound from the horn section in the chorus.

[13] The albums sixth track "Gloria" is a rock song centered around an acoustic guitar that conveys the cries of the youthful heart.

[15] "It's All Too Much" is the twelfth track on the album; it is a rock number that describes her worries about life's many hardships and her strength to survive.

It's bright, sparkling, and a really fun album, and I made it with the image of someone who would want to listen to it while driving in the summer.

[19] The song performed well in Yui's native Japan, reaching number one on the Oricon Singles Chart.

[43] The promotional single "Please Stay With Me" peaked at number 44 on the Japan Hot 100 and was certified platinum by the RIAJ for selling over 250,000 downloads.

"[47][48] "Please Stay With Me" served as the insert song for Fuji TV's Summer Romance Shines in Rainbow Colors.

A total of 15 shows in 12 venues were scheduled in Japan, spanning from September 12 at the Ichihara Civic Hall, Chiba Prefecture, and finishing on November 2 at Nippon Budokan.

He commented: "After three nice but predictable albums with zero degrees of variation, Yui finally felt that it was time to diversify her airy guitar pop.

The opening cut on Holidays in the Sun inspires a fear that she's got it all wrong, because it's a sugary but bland piano-led ballad of the sort that the J-pop scene produces too much of, but in the end, things work out well, with 'To Mother' being the sole blunder on an otherwise engaging, if not groundbreaking, record."

[59] This ranked it as the eighth best-selling album by a female artist in 2010, just behind entries from Japanese singers Kana Nishino, Namie Amuro, Kaela Kimura, Kumi Koda, Ayumi Hamasaki, and Hikaru Utada, and American singer Lady Gaga.

[61] Holidays in the Sun was certified platinum by the Recording Industry Association of Japan (RIAJ) for shipments of 250,000 units.