UK Wave buoys

This section shows the latest wave buoy data around the UK. Data for the rest of Europe will be added as soon as it becomes available.

 

Each area should have 4 graphs (wind direction, wind speed, wave height, wave period) but due to the harsh environment they work in, wave buoy data can be sketchy, and you will not always get 4 graphs per area. Just because it's live data doesn't mean it should be taken at face value  - if any graph is unchanged for 24 hours then the buoy is not working !

How to read wave buoy graphs

Each graph shows how a given measurement (such as wave height) has changed over the past 24 hours. Here's a rough guide to understanding the wave buoy data -

 

 

What's on the graph

What it tells us

The horizontal axis (along the bottom of the graph)

Date and time
The number on top is the date (eg. 06/01 for June 1st). The number below it is the time, as a 24 hour clock (eg. 0Z is midnight, 06Z is 6am, 12Z is midday, 18Z is 6pm).

The vertical axis (up the left hand side of the graph)

Wind direction (degrees)
0 degrees is a northerly wind (a wind blowing from the north), 90 is an easterly wind, 180 is a southerly wind, 270 is a westerly wind.

Wind speed (knots)

Knots

Mph

Force

Comments

10 knots

12 mph

Force 3

Light flags extended. Large wavelets. Crests begin to break, scattered whitecaps.

20 knots

23 mph

Force 5

Small trees in leaf begin to sway. Moderate waves, many whitecaps, some spray.

30 knots

35 mph

Force 7

Whole trees in motion. Resistance felt walking against the wind. White foam from breaking waves begins to be blown in streaks.

Wave height (feet)
This is the "significant" wave height (the mathematical average of the highest third of the waves measured).

Wave period (seconds)
This is the interval in seconds between successive waves.

Take your choice !

Please choose a wave buoy, either from the map, or the list.