Vocabulary What does 6月 (ろくがつ, rokugatsu) mean? 6月 (ろくがつ, rokugatsu) means June. Quick factsReadingろくがつRomajirokugatsuPart of speechnoun 6月ろくがつrokugatsuJune1noun June2noun sixth month of the lunar calendarAlso written: 六月Kanji in this word月month; moon