rainy moon-viewing night; missing the harvest moon due to rain
Archaic poetic term for the situation when rain obscures the moon during the traditional moon-viewing season. Now mostly encountered in classical literature or as a seasonal word.
On a night of rain-obscured moon, the moon-viewing party could not be held.
Archaic name for the fifth month of the lunar calendar, corresponding roughly to June. The kanji 雨月 literally means 'rain month', reflecting the rainy season. Compare with 皐月 (さつき), another old name for the same month.
See also: 皐月
雨月 refers to the fifth month of the old lunar calendar.