In Liberia the climate is tropical, hot and humid.

Liberia has one rainfall season between May and November. This rainfall season is largely controlled by the movement of the tropical rain belt which moves between the northern and southern tropics of Africa over the course of a year.

In the wet season, the West African Monsoon causes exceptionally high rainfalls on the coastline of West Africa. The capital of Liberia Monrovia is one of wettest capital cities of the world with the average annual precipitation exceeding 5000 mm. 

The Liberia capital city Monrovia and other locations in the country experience frequent flooding issues – flood water enter houses, wells overflow with the polluted water and roads get impassable. 

In Liberia, farmers are experiencing extreme weather like never before. With heavy rain and strong winds, eroding coasts and degraded soils, Liberia’s most-vulnerable communities face ever-increasing risks from climate change.

For centuries, Liberians have relied on traditional knowledge for farming, farmers largely rely on rainfed agriculture to feed their families, and coastal fisheries are threatened by rising sea levels and coastal flooding.

With all these changes, reliable weather forecasts, early warnings and consistent climate information can mean the difference between life and death, profitable harvests or destroyed crops, sustainable economic and social development, or continued cycles of poverty and conflict.

Climate change is projected to increase temperatures and impact water availability across Liberia; some areas may also experience flooding due to increased intensity of rainfall, coastal erosion and sea-level rise. 

Liberia is highly vulnerable to adverse effects of climate change. Liberia is also highly vulnerable to environmental instability due to its extreme poverty and high dependence on 'climate sensitive' sectors such as agriculture, forestry, fisheries, and energy and mining.

In other for Liberia to prevent extreme weather, 

the government should improve forest governance, strengthen law enforcement, and support efforts in reducing greenhouse gas emissions from deforestation and forest degradation.

 REFERENCE;

https://lhsliberia.com/hydrology-for-the-curious/rainfall/