Tide times vary along the coast so unfortunately high tide at a beach in the South East of Wales will be different to a break on Anglesey. Knowledge of tide times is essential. Wales has some of the biggest tidal ranges in the world (the Severn Estuary has the second biggest tidal range anywhere) which directly effects the surf. If a certain break only works over a specific reef/sandbar at high tide, you could have a long wait if you turn up at the wrong time!

Tide times, while essential information for surfers, are not there solely for our benefit, and are calculated for ports and harbors, not for your surf break. This means the trick is to find the nearest harbor to the beach you want to surf... 

...thankfully the map below links the nearest port to the beach you want to surf, with a free seven day tide table.