Final answer:
The Indian Ocean influences the climate of the Swahili coast, affecting precipitation patterns and creating hot and humid conditions.
Step-by-step explanation:
The precipitation pattern that helps govern the climate of the Swahili coast is the effect of the Indian Ocean on weather patterns in the region. The Indian Ocean provides moisture and influences the movement of air masses, resulting in the distribution of precipitation along the coast.
One example of this is seen in the heavy rainfall received by coastal islands and areas around Lake Victoria, with upward of fifty-nine inches of rain per year. This abundant rainfall contributes to the hot and humid conditions in the region.
Overall, the presence of the Indian Ocean affects the climate of the Swahili coast, contributing to the unique precipitation patterns experienced in the area.