For Jan Heweliusz Wreck :
Warning strong breeze.
The reliability of the situation is assessed at 90%.
Cloud and long sunny periods. No precipitation. In the evening, fair weather with mostly clear skies.
NW wind force 6 continuing all day. Gusts reaching 40 knots in the morning. Moderate sea becoming slight in the evening. Low, short swell from NNW. Excellent visibility.