American Samoa is a small South Pacific territory with a consistently warm, humid tropical marine climate moderated by southeast trade winds. Temperatures change little through the year, while rainfall remains high and highly variable by location, with windward slopes and sheltered harbor areas often receiving much more rain than exposed coasts. The territory is best described by a tropical Köppen regime, with strong year-round warmth, frequent showers, and a wetter season from roughly November to April. For residents and expats, the climate is appealing if you prefer steady warmth and lush scenery, but humidity, heavy rain, and tropical-storm exposure are important everyday considerations.