This really depends on the species you are targeting. Day fishing is more productive if fishing in coloured water than in clear water and also better on cloudy days than bright sunny days. Also day fishing is probably more convenient for the whole family to enjoy.
However, night fishing can produce some excellent sized fish especially the big predatory type fish that come in closer to feed at night.
Night fishing is a great expe and an excellent way of testing all your senses. You have to cast in the dark and use your ears to listen to your line going out(it always sounds like it's going out a long way). You have to feel when your sinker hits the water or the bottom so that you can readily take up any slack. You wil be on full alert at all times. Of course, to make life easier, take a good lamp and/or torch with you. Attach a tip light to your rod so that you can easily see any bites and that your rod is actually still standing up and hasn't been washed down by the incoming tide.
DO LUMINOUS ATTRACTORS REALLY WORK?
Yes, yes, yes. They really do. From a number of experiments we've carried out, the rigs with luminous tubing and beads have definetly caught far more fish than the ones without.
Just shine your torch on the luminous tubes for a few seconds before casting to increase the glow.