82%
Liberia's Climate
There are distinct wet and dry seasons, most of the rainfall occurring between late April and mid-November. Average relative humidity in the coastal area is about 82% during the rainy season and 78% in the dry, but it may drop to 50% or lower between December and March, when the dust-laden harmattan blows from the Sahara.
https://www.nationsencyclopedia.com/Africa/Liberia-CLIMATE.html
