Naturally there are quite a few surf webcams around this area.
Fistral Beach in Newquay, Cornwall, is probably one of the most famous surfing beaches in the UK.

Fistral Beach live stream Surfcam

If you don’t live in this area and you’re thinking about visiting then I can personally recommend

Matt’s Surf Lodge
110 Mount Wise,
Newquay,
Cornwall
TR7 1QP
http://www.matts-surf-lodge.co.uk/

or

Driftwood Surf Lodge Newquay
Driftwood Lodge
25 Grosvenor Avenue
Newquay
Cornwall
TR7 1BJ
Telephone : 01637 878109
http://www.driftwoodsurflodge.co.uk/