There's been a big Atlantic swell for quite a long time, but the last 3 days, with the wind generally offshore on the north coasy, there have been some exceptional surfing conditions.

Photo from yesterday afternoon at Sennen (12-15' or so), and the much messier onshore but still fairly surfy conditions at Porthleven this morning.
http://www.turnstone-cottage.co.uk/Surf.html

Yesterdays particularly big & powerful swell has now hit Nazare. Worth watching the webcam for a big set, the biggest waves are 30'
https://magicseaweed.com/Nazare-Surf-Report/194/

Graham
Penzance