Mayumba, in Nyanga, Gabon, is home to roughly 6,300 people in the Africa/Libreville time zone at 3.4°S latitude.
Recent weather here gives a sense of typical conditions: in 2025, Mayumba recorded a mean annual temperature of 77°F, ranging from 62°F lows in August to 88°F highs in February, with about 104 inches of precipitation across the year.