United Kingdom
Holyhead Harbour
About this Dive Site
Description
Experience the sheltered environment of Holyhead Harbour, a reliable choice for winter diving within a bustling working port. The sturdy harbour walls create a thriving artificial reef, attracting a rich community of marine life, from various crabs to camouflaged blennies and vibrant anemones.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 9°C | 9°C | 10°C | 11°C | 12°C | 13°C | 14°C | 15°C | 14°C | 13°C | 11°C | 10°C |
Peak Season
May, June, July, August, September
Mar
Early seal sightings
Apr
Seabird colonies begin to form
May
Plankton bloom, increased marine life activity
Jun
Peak seabird activity, potential for dolphins
More monthly highlights
Jul
Summer marine life, abundant fish
Aug
Good conditions for exploring wrecks
Sep
Autumn plankton bloom, possible whale sightings
Oct
Grey seal pupping season begins
Nov
Continued seal activity
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