Sundial at St Donat's Castle is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 19 January 2005. Sundial.

Sundial at St Donat's Castle

WRENN ID
steep-threshold-summer
Grade
II
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
19 January 2005
Type
Sundial
Address
Sundial at St Donat's Castle, Cowbridge / Y Bont-Faen, St. Donats
OS grid reference
SS 934 679
Coordinates
51.4003, -3.53246
Source
Cadw listing

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

Description

The sundial at St Donat's Castle is made of sandstone and limestone. The steps and base appear to be limestone, while the shaft and top are sandstone. It is designed in the style of a 15th-century pillar piscina. The sundial features an octagonal base with two moulded steps and a double moulded base stone. The octagonal shaft has moulded sunk panels, and the top is adorned with eight panels of leafwork carving. It has a plain gnomon.

Local climate

Sundial at St Donat's Castle sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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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Nearby listed buildings

  1. The Cavalry Barracks Grade II 33 m
  2. Sea Walls and Towers at St Donats Castle Grade II 136 m
  3. Cottage against the south-east wall of the Churchyard of the Church of St Donat Grade II 167 m
  4. Medieval Cross and associated Slab in the Churchyard of the Church of St Donat Grade I 186 m
  5. St Donats Arts Centre Grade II 187 m
  6. St Donats Castle (United World College of the (Atlantic), including entrance Bridge Grade I 196 m
  7. Church of St Donat Grade I 197 m
  8. Former Forecourt Stables at St Donats Castle Grade II 205 m
  9. Nicholl-Carne Memorial Cross in Churchyard of Church of St Donat Grade II 214 m
  10. Walls of Entrance Forecourt flanking the Bridge at St Donats Castle Grade II 217 m