The following are the themes of Night Rain by John Pepper Clark that naijapoets.com was able to fetch through research and findings:
(1) Man and Nature: He discusses the forces of nature through a natural phenomenon and that man is not to run away from the latter but face it and become unified with it.
(2) Solidarity of Humanity: Under the unrelenting forces of nature man should stick together as the family did.
(3) Poverty: The family becomes an epitome of the general level of poverty prevalent among humans even in the face of something so powerful as a natural phenomenon.