The amount of rainfall depends essentially on season. The rainiest months are April and May, while in January to February the rainfall is minimal.

The major influence on East African weather is the Inter-tropical Convergence Zone (ITCZ). This is an area of the atmosphere above the earth’s surface where two air-streams (the North East and South East Trade Winds) converge.

The zone is characterised by warm rising air and the formation of clouds, and is clearly visible as an equatorial band oscillating north and south across the equator as the earth revolves around the sun on it’s annual orbit along the plane of the ecliptic.