National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.

Porthleven

  

Additional Information

 Wave buoy location  50° 03.76' N  005° 18.44' W
 WMO code  6201044
 Approximate water depth  15 m CD
 Approximate spring tidal range  4.7 m
 Storm alert threshold  4.93 m

 

Wave data are measured using a Datawell Directional WaveRider Mk III buoy. The buoy was deployed on 17 October 2011, at which time the magnetic declination at the site was 3.2° west, changing by 0.15° east per year. Wave direction is reported following the nautical convention, meaning that the direction is where the waves come from, measured clockwise from magnetic north.

 

31/08/2024 Scheduled service
18/04/2024 Scheduled service
15/08/2023 Scheduled service
30/05/2023 Lost connection to the shore station. An investigation is underway.
25/04/2023 Site visit and service
12/04/2023 The buoy is suffering from intermittant data communication issues, a site visit will be made asap.
20/03/2023 Data is delayed due to BT broadband issues at the shore station. This will be rectified asap.
13/03/2023 The buoy is suffering from intermittant data communication issues. 
24/02/2023 Scheduled service
10/08/2022 Scheduled service
20/01/2022 Scheduled service
13/04/2021 Scheduled service
16/10/2020 Scheduled service
20/05/2020 Scheduled service
04/12/2019 Scheduled service
21/05/2019 Scheduled service
25/10/2018 Scheduled service
15/05/2018 Scheduled service
11/02/2018 Due to power cuts, no data was being received for a period of time. The power has now been restored.
27/10/2017 The buoy has been redeployed
11/10/2017 The buoy was set adrift and has been recovered. A replacement will the deployed ASAP.
24/05/2017 Scheduled service
11/05/2016 Scheduled service
12/01/2016   Recent intermittent data caused by deterioration of antenna hub at shore station which has now been replaced.
22/11/2015 Lost reception from receiver station, will be rectified ASAP.
14/10/2015 Scheduled service
20/03/2015 Scheduled service
14/11/2014 There are problems with the power supply to the shore station
13/06/2014 Scheduled service
05/03/2014 The damaged DWR was still in situ, and has been recovered for testing.  A replacement DWR has been deployed
06/02/2014 Some of the sensors in the buoy were badly damaged during last night's storm and although readings are still being transmitted, they are incorrect. The buoy will be replaced as soon as sea conditions permit
05/02/2014 Data appears to be unreliable from storm peak and is being investigated.
30/01/2014 Scheduled service
03/06/2013 Scheduled service
24/01/2013 Scheduled service. Repositioned to original location.
02/12/2012 Buoy was dragged 500m SE off its deployed position. Appears to be functioning normally and will be repositioned at earliest opportunity.
13/04/2012 Scheduled service