「来月」 means next month, referring to the month immediately following the current one. Use it when discussing future plans or events that will occur in the upcoming month. Essential for medium-term planning.

今(いま)の月(つき)の次(つぎ)の月(つき)を意味(いみ)します。来月(らいげつ)の計画(けいかく)やイベントについて話(はな)すときに使(つか)います。