The one downside of being on the coast is that it can be very windy. It's the same wind that keeps the clouds inland so we often get sunshine when the rest of the country is shrouded in cloud like today. Hence "Sunny Worthing"
If you can get out of the wind it can be surprisingly warm even in the middle of winter. There's been times when we can sit out in the locals beer garden even in January - Jeans and T-shirts. By the same token you can be lashed by gales and rain.