Great Britain
- Inland UK
- Offshore waters
- Overview
- Bailey
- Cromarty
- Dogger
- Fair Isle
- Faroer Islands
- Fastnet
- Fisher
- FitzRoy
- Forth
- Forties
- German Bight
- Hebrides
- Humber
- Irish Sea
- Lundy
- Malin
- Plymouth
- Portland
- Alderney
- Broons
- Cancale
- Carteret
- Chesil Beach
- Coney s Castle
- Dinard
- East Hill
- Exmouth/Exeter
- Farway
- Granville
- Guernsey
- Ile de Brehat
- Isle of Portland
- Jersey
- La Hague
- Lannion / Servel
- Lyme Bay
- Overcombe
- Perros-Guirec
- Ploumanach
- Portland Bill
- Saint-Malo
- Sea area (49° 10' N/2° 30' W)
- St Brieuc
- Telegraph Hill
- Torquay
- Weymouth
- White Horse
- Rockall
- Shannon
- Sole
- Strait of Dover
- Thames
- Tyne
- Utsire
- Viking
- Wight
Portland - Water temperatures
Last updated: Sa, 11 May, 20:30 BST
