godan verb (-ku), intransitive verb
sprinkle; fall lightly
Describes light, scattered rain or similar precipitation. Often used when rain starts or stops, or when it's not heavy enough to be called 降る.
See also: ぱらぱら
雨がぱらついてきたから、傘を持っていこう。
It's started to sprinkle, so let's take an umbrella.
In the afternoon, it was just a light sprinkling of rain.