Signal in Barmouth?

Hey all,

Went to Barmouth yesterday and phone signal was abysmal at best. To the point that I struggled to pay for parking, only option is to pay through phone with app called paybyphone.

Eventually managed to get a little bit of signal whilst walking round and managed to pay. Awful. 

Im going to Devon cliffs soon, anyone know what signal is like with smarty down there.

Thanks in advance.