Rain is the main character here, and it behaves like a person with power. The opening lines make the water sound like an unwelcome guest: deaf, overly affectionate, and "bad company" because it won't listen and won't leave you alone. Then it falls "choosing places to keep / with great authority," as if the downpour were a landlord or a judge deciding where to settle, and nobody can argue.
The last three lines add a small joke. "Captains of the fleet" suggests people of rank, yet they arrive "cap in hand," like beggars asking a favor, and leave with nothing grander than "a hose." The poem seems to enjoy watching status collapse in front of the weather. The "hose" is a funny, deflating image next to all that rain.
The mood is playful and a little surreal. The speaker sounds amused rather than frightened, treating a storm as a stubborn force that makes human importance look ridiculous. The logic is dreamlike, so it's best to enjoy the images rather than hunt for one fixed meaning.