Their July - Oct tour to promote JUMPing CAR is titled Hey! Say! JUMP LIVE TOUR 2015 JUMPing CARnival
http://www.johnnys-net.jp/page?id=consta&artist=15#321
If they're not touring during August , Yabu could have come to Singapore for Takizawa Kabuki Singapore but alas it's not meant to be =(