Are There Koinobori in Summer?

In summer, Japan is arguably the storehouse of festivals. Even before summer there was such a thing as the koi nobori (koi flag) festival, which is a flag shaped like a Koi fish that is hoisted in homes in Japan by parents of sons. The Koinobori raising is done to welcome the celebration of Tango no Sekku (Children's Day in Japan) which falls on the 5th of the 5th month when East Asia is in the rainy season. Parents of sons raise the koinobori on Tango no Sekku day to wish their sons to become successful adults. After Japan adopted the Gregorian calendar, the koinobori were flown until Children's Day (5 May). Koinobori blowing in the wind has become a symbol of the celebration of Children's Day. Whereas earlier, the Koinobori fluttered in the middle of the rainy season, the Koinobori now reminds the Japanese of the clear blue sky at the end of spring.