noun
General term for fog or mist. Often contrasted with 靄 (もや, haze) and 霞 (かすみ, spring haze/mist).
朝、深い霧が出ていた。
There was a thick fog in the morning.
霧で前がよく見えない。
I can't see well ahead because of the fog.
noun
spray; fine droplets
Refers to fine liquid droplets suspended in the air, such as from a waterfall or a spray bottle. Less common than the fog sense.
滝の近くで霧のような水しぶきを浴びた。
Near the waterfall, I was showered with a mist-like spray.
靄 refers to a thinner haze, often with less visibility reduction than 霧.
霞 is a springtime haze or mist, often with a poetic nuance, and typically obscures distant views.
The historical derivation is uncertain; the kanji 霧 is conventionally associated with fog and mist.