A further 19 beaches in Wales have gained the Green Coast Award - recognising the "hidden gems" along our coastline - and a total of 83 beaches have achieved the Seaside Award for their good water quality and facilities.
Two city beaches will be able to fly the Blue Flag this summer.
Only 42 beaches achieved both awards - including Roker and Seaburn.
The Seaside Award recognises beaches that meet the highest standards of cleanliness and facilities while the Blue Flag is handed to only the best beaches in the world.
Meanwhile Sheppey has three blue flag beaches and another can be found at Tankerton Marina.
30 years on, Wales now has more Blue Flags per mile than anywhere else in the UK.
The Isle of Wight has three Seaside Awards show here by the stars
East of England: Cromer, Sea Palling, Sheringham, Mundesley, East Runton, West Runton, East Beach Shoeburyness, Shoebury Common, Thorpe Bay, Dovercourt Bay, Brightlingsea, Southwold Pier.
This year's biggest victor is Pembrokeshire, which has achieved a total of 56 Coast Awards (11 Blue Flags, 14 Green Coast Awards and 31 Seaside Awards).
Keep Britain Tidy's Chief Executive Allison Ogden-Newton said: "Blue Flag leads the fightback for the Blue Planet".
It has been awarded to Blackpool South beach, which is among 65 Blue Flag beaches recognised in England this year.
Keep Britain Tidy Hove beach.
The global Blue Flag and the UK Seaside Awards are the quality marks for beaches and mean those visiting them can be sure that they are clean, safe and meet the highest environmental standards, as well as the tough worldwide bathing water quality standards. It's fantastic to see so many of our beaches receiving these awards, which is testament to the work being done by our partners and communities across Wales to keep our beaches and waters clean. "Hopefully next year we'll see an even greater number joining us as we drive up standards across the board".