Channel Swimming & Piloting Federation "Nothing great is easy", Captain Matthew Webb

Sandettie Lightship Buoy Data

There were 37 swim dates in our solo swims database during 2023: Jun 11th, Jun 12th, Jun 16th, Jun 18th, Jun 22nd, Jun 24th, Jul 7th, Jul 9th, Jul 18th, Jul 19th, Jul 20th, Jul 21st, Jul 25th, Aug 4th, Aug 9th, Aug 10th, Aug 15th, Aug 16th, Aug 20th, Aug 21st, Aug 22nd, Aug 23rd, Aug 24th, Aug 25th, Aug 28th, Sep 6th, Sep 7th, Sep 8th, Sep 9th, Sep 10th, Sep 11th, Sep 13th, Sep 22nd, Sep 30th, Oct 2nd, Oct 8th, Oct 9th.


  • Data shown on these graphs are from the Sandettie Lightship Buoy automatic weather station. It is the closest station measuring sea temperatures and weather to the Channel swimming routes.
  • To track graph values move the mouse over the graph area. To change graph resolution, highlight the area of interest. To zoom out, double-click on the graph area.
  • Sandettie data is provided by the Met Office: it contains public sector information licensed under the Open Government Licence v1.0. Please read our detailed notes on Sandettie data and interpreting these graphs and values.
  • Tide range data is calculated by the XTide freeware. See our Tides section for more information. 
  • If you have any suggestions or comments on how we presented this data, please contact us.