Castle Cornet

Castle Cornet is an island castle in Guernsey, also known as Cornet Rock or Castle Rock. A former tidal island which has been one of the harbour breakwaters of St Peter Port’s since 1859.

The island is approximately two hectares in area (length 175 metres and width130 metres).

The island also has a restaurant, and hosts outdoor theatre performances during the summer months.

The castle has the following museums:

  • The Story of Castle Cornet
  • Maritime Museum
  • 201 Squadron RAF Museum
  • Royal Guernsey Militia Museum


Visit Castle Cornet


(Get directions)

Castle Cornet Photos


7 Day Weather Forecast

Expect a temp in the range 7.4℃ to 8.4℃ with wind speed 9.1 m/sec (E)
Monday, Dec 05cloudy
Expect a temp in the range 7.3℃ to 7.8℃ with wind speed 5.9 m/sec (ESE)
Tuesday, Dec 06cloudy
Expect a temp in the range 7.5℃ to 8.1℃ with wind speed 7.4 m/sec (ESE)
Wednesday, Dec 07rain
Expect a temp in the range 8.3℃ to 9℃ with wind speed 8.1 m/sec (ENE)
Thursday, Dec 08cloudy
Expect a temp in the range 6.4℃ to 7.2℃ with wind speed 4.2 m/sec (N)
Friday, Dec 09lightrainshowers_night
Expect a temp in the range 6.4℃ to 7℃ with wind speed 7.8 m/sec (NNE)
Saturday, Dec 10rainshowers_night
Expect a temp in the range 5.7℃ to 8.5℃ with wind speed 7.3 m/sec (W)

Saint Peter Port Town weather forecast from Yr, delivered by the Norwegian Meteorological Institute and NRK

Where to stay ...

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