Majuro. Majuro is the capital and largest city of the Marshall Islands. It is also a large coral atoll of 64 islands in the Pacific Ocean. It forms a legislative district of the Ratak (Sunrise) Chain of the Marshall Islands. The atoll has a land area of 9.7 square kilometers (3.7??sq??mi) and encloses a lagoon of 295 square kilometers (114??sq??mi). As with other atolls in the Marshall Islands, Majuro consists of narrow land masses. It has a tropical trade wind climate, with an average temperature of 27????C (81????F).