All of the required gear must be aboard all vessels at all times...regardless if you intend to sail at night or not. Navigation
lights are a required item to be in working order...even if you nevetr intnd to sail at night.
Rain gear is Ok but in a waves breaking on the bow and wind driven salt water being blown back into the cockpit situation the best thing to have on hand is a skin diving mask or gogles to keep the salt water out of your eyes. You eyes can get very irritated after several hours of salt water in the face that will run down inside your expensive foul weather gear soaking you down to your underwear. Thus one set of spare dry clothing is nice to have also and also can of OFF inspect repellant and a citronella candle. It's bad enough to get stuck out overnight unexpectedly...without feeding the bugs your blood also.