How clear was Titanic's final night?

Was Titanic's final night foggy, or was it clear and moonless?

Accounts differ. The sea was calm and the night moonless, while this assessment treats mist, fog, haze, or a similar atmospheric effect as a source of poor visibility.

Surviving descriptions of the weather on Titanic's final night conflict. The sea is described as calm and the night as moonless, while the reduced visibility is variously called fog, mist, haze, or an atmospheric effect. The conclusion offered here is that visibility was poor even by night-time standards. Keeping that uncertainty visible avoids overstating the surviving accounts when judging the lookouts and the ship's last manoeuvres.