Holy Island, Anglesey Island
Tidal island with historic monastery and village
Holy Island off Anglesey contains Holyhead town, St Cybi's Church and coastal cliffs including South Stack lighthouse; visitors use the port for ferries to Ireland, explore maritime history and watch seabirds from cliff paths.
Holy Island, Anglesey at a Glance#
About Holy Island, Anglesey#
Holy Island, often called Ynys Gybi in Welsh, is an island off the west coast of Anglesey in northwest Wales. It contains the town of Holyhead and is the principal maritime link between Wales and Ireland.
The island combines maritime infrastructure and natural coastal features. Notable points include the working ferry port at Holyhead, the cliffside South Stack Lighthouse with its seabird colonies, and upland areas used for walking and coastal views.
Holy Island’s development has centred on the port town and related services, while much of the coastline retains rocky cliffs and headlands used for wildlife observation and recreation. The island has been important for sea travel and coastal navigation for centuries.
The island lies off the northwest tip of Anglesey and is connected to the larger island by causeways and road links. It forms part of the county of Anglesey and faces the Irish Sea to the west.
- Transport link: The island contains the town of Holyhead, which is the principal ferry port connecting mainland Wales to Ireland.
- Wildlife and viewpoints: South Stack Lighthouse and adjacent RSPB-managed cliffs are prime spots for seabird watching and coastal scenery, especially in spring and summer.
What to See#
- Holyhead port: A working ferry port and transport hub linking Wales to Ireland, with vehicle and passenger services to Dublin and elsewhere.
- South Stack lighthouse and reserve: South Stack and its lighthouse located on the island’s western edge, with coastal cliffs and seabird colonies visible from the visitor paths.
- Holyhead Mountain: Holyhead Mountain providing the island’s highest ground and open moorland popular for walks and coastal views.
How to Get to Holy Island, Anglesey#
Holy Island (the islet with St Cwyfan’s chapel) is accessible from the main road on Anglesey via the village of Llanddwyn or via paths from Newborough Forest and Newborough beach. The nearest large towns are Holyhead and Beaumaris; local roads and signage guide visitors to parking and footpaths.
Tips for Visiting Holy Island, Anglesey#
- Check tide times if visiting the causeway to ensure a safe crossing; the causeway can become slick and is impassable at high tide.
- Visit St Cwyfan's chapel at low tide when the causeway is walkable; at high tide the island looks like a small green cameo floating above the sea.
- Stay overnight in nearby Holyhead or Beaumaris to see the island's light change; sunrise and sunset are especially rewarding.
Best Time to Visit Holy Island, Anglesey#
Summer is best for comfortable access, but spring and autumn offer atmosphere and emptier beaches.
Weather & Climate near Holy Island, Anglesey#
Temperate climate with mild summers (peaking in August) and cold winters (coldest in February). Temperatures range from 3°C to 19°C. Moderate rainfall (796 mm/year).
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | 3° - 8° | 1° | 79 mm | overcast | 85% | 7.4 m/s | 0.0 low | 7.9h |
| February | Poor | 3° - 8° | 1° | 58 mm | overcast | 86% | 6.9 m/s | 0.1 low | 9.6h |
| March | Acceptable | 4° - 9° | 3° | 61 mm | overcast | 86% | 6.5 m/s | 0.4 low | 11.7h |
| April | Acceptable | 5° - 12° | 5° | 50 mm | overcast | 84% | 5.4 m/s | 0.8 moderate | 13.8h |
| May | Good | 8° - 15° | 11° | 44 mm | overcast | 84% | 5.2 m/s | 1.2 high | 15.7h |
| June | Good | 10° - 17° | 14° | 50 mm | overcast | 85% | 4.8 m/s | 1.4 high | 16.7h |
| July | Good | 12° - 19° | 16° | 49 mm | overcast | 86% | 4.8 m/s | 1.3 high | 16.2h |
| August | Good | 12° - 19° | 16° | 66 mm | overcast | 85% | 4.8 m/s | 1.0 high | 14.6h |
| September | Good | 11° - 17° | 14° | 70 mm | overcast | 84% | 5.6 m/s | 0.6 moderate | 12.5h |
| October | Acceptable | 9° - 14° | 11° | 86 mm | overcast | 84% | 6.4 m/s | 0.3 low | 10.4h |
| November | Poor | 6° - 11° | 5° | 96 mm | overcast | 84% | 6.6 m/s | 0.1 low | 8.4h |
| December | Poor | 4° - 9° | 2° | 87 mm | overcast | 85% | 7.1 m/s | 0.0 low | 7.3h |
