If you planning to travel to Devil's Island, French Guiana, French Guiana, 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 9:42 AM. The temperature feels like 85 with a humidity level of 79 so dress accordingly. Cloud coverage is 0 percent with visibility at 14.7 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 9 MPH. At the end of the day don’t miss the sunset at 9:34 PM.