If you planning to travel to Grouin Lighthouse, La Tranche-sur-Mer, France, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 5:38 AM. The temperature feels like 61.099999999999994 with a humidity level of 77 so dress accordingly. Cloud coverage is 78 percent with visibility at 14.9 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 12 MPH. At the end of the day don’t miss the sunset at 6:23 PM.