Why does Debundscha Point on Mount Cameroon receive such heavy rainfall?

Debundscha Point, located at the base of Mount Cameroon, experiences exceptionally heavy rainfall due to its position facing the Gulf of Guinea.1

This phenomenon is a classic example of orographic precipitation, which occurs when moist, rain-bearing winds originating from the Atlantic Ocean are forced to rise as they encounter the steep slopes of the mountain. As this warm, humid air mass is lifted by the terrain, it cools and condenses, resulting in intense and frequent rainfall on the windward side of the mountain. Because the mountain is oriented directly across the path of these prevailing winds, Debundscha Point receives a mean annual precipitation level exceeding 400 inches (10,000 mm), making it one of the wettest locations on Earth.231