Penarth, United Kingdom port and ships, live

The nearest harbour to Penarth is Cardiff, 0.6 mi from the centre.

The harbour

The Index rates Cardiff a medium-sized coastal harbour behind tide gates. It lists yards for major repairs there.

Cardiff0.6 mi from the centreMedium-sized harbour · counted on the page for Cardiff
Barry5 mi from the centreMedium-sized harbour · counted on the page for Barry

In 24 hours of AIS recorded Oct 12 – 19, the map heard only 14 ships within 6 mi of Cardiff: reception here is patchy, so most ships won’t show.

NGA’s World Port Index rates a harbour by its area, facilities and wharf space when it was last surveyed, not by its traffic, so a busy terminal can be rated small. Where it doesn’t know about a facility it says so, and only what it marks as there is listed here.
AIS is heard by receivers on shore, so coverage follows where they are: ships far out at sea, or off coasts without one, don’t show. Warships and some others switch it off, and a ship’s type and destination are typed in by its crew.
Harbours from NGA’s World Port Index (Pub. 150), downloaded on Oct 19, 2026. The major ports and chokepoints are the map’s own reference list.

How the layers work, where their data comes from and what they can’t tell you: Live ship tracker, Shipping chokepoints