South Pier is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 25 July 1994. Bridge.

South Pier

WRENN ID
scarred-lancet-sage
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
25 July 1994
Type
Bridge
Address
South Pier, Holyhead
OS grid reference
SH 254 826
Coordinates
53.31224, -4.62094
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

South Pier is a masonry structure that extends approximately 100 meters north from the harbour. It is built with large squared masonry blocks. On the northwest side, there is a square projection, and the pier widens at the southwest angle, which was previously the location of a dry dock. There are stone stairs leading down to the water level, and a sloping revetted wall on the seaward (east) side. Above the beach, there is a stone wall that defines the rock zone.

Local climate

South Pier sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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