If you planning to travel to That Dam, Vientiane, Laos, 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 11:16 PM. The temperature feels like 85.44999999999999 with a humidity level of 66 so dress accordingly. Cloud coverage is 39 percent with visibility at 14.9 percent. Today’s UV index is 7, don’t forget the sunscreen if you need it! Today’s winds are traveling east-northeast at a speed of 5 MPH. At the end of the day don’t miss the sunset at 10:33 AM.