Hey Rug_V,
I feel the safety level on the beach at night is higher during the busy season since there are alot more tourists on the beach at night going to the various Bars/Restaurants from November to April. In May, when it was slower, as I said before, I had no problems but there are alot less people around as well (so I kept a vigilant eye out as I walked). With the new side walk on the main road, that's always a safer option to walk at night as well.