The number of hours of sunshine per year, approximately 2300-2400 hours (about 6.3 to 6.5 hours per day) the relative humidity of the air is approximately 70-85 rainfall in the rainy season. (From May to October) with a percentage of 75-90 parts in dry season. (November to April) rainfall per cent 10-25 and the average rainfall per year, but the area was different, much like the mountains in the southern receive average rainfall of 300 cm while. Area Xiangkhoang Luang Pha Bang Buddha Road King John Lee, was just 100-150 centimeters Road, Vientiane and Savannakhet in the range 150-200 cm as well as Phongsaly Province. Luang Namtha And Bokeo