Traveling to Plage de Pen Guen, Saint-Cast-le-Guildo, France? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 7:37 AM and don’t miss the sunset at 4:15 PM. Today’s winds are traveling south at a speed of 10 MPH. The temperature feels like 55 with a humidity level of 93. Cloud coverage is 52 percent with 14.9 percent visibility. Today’s UV index is 1 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.