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Climate & Weather Guide in Marshall Islands

Climate zones, seasonal temperatures, rainfall patterns, and best travel times

The Marshall Islands features a tropical climate characterized by consistently warm temperatures year-round, with minimal seasonal variation. The archipelago experiences hot, humid conditions tempered by trade winds that prevail throughout the year. Annual temperatures average around 28°C with little fluctuation. The region receives significant rainfall, particularly during summer months when the Intertropical Convergence Zone moves across the area. Minor tropical storms occur frequently from March to April and October to November, while major cyclones impact the atolls approximately once every four to seven years on average.

Summer Average

26-28°C

Winter Average

26-28°C

Climate Types

Tropical Rainforest

Annual Rainfall

1500-3500 mm

Sunshine Hours

2,200-2,600 hours annually

Average Humidity

75-85%

Regional Climate Variations

Atoll Regions

The Marshall Islands consists of coral atolls distributed across the Pacific Ocean. These low-lying islands experience uniform tropical conditions with temperatures varying minimally between 26-28°C year-round. The climate is hot and oppressive with persistent humidity and trade winds providing some relief. Rainfall is substantial and distributed throughout the year, with peak precipitation during summer months. The region is vulnerable to tropical cyclones and easterly wave storms, particularly during transitional seasons.

Summer:26-28°C
Winter:26-28°C
Very high rainfall

Consistently warm and humid tropical climate with trade winds moderating heat. Expect frequent rainfall and occasional severe storms. The lack of seasonal temperature variation means year-round warmth, but humidity and storm risk are significant considerations for residents.

The Marshall Islands maintains a uniform tropical rainforest climate with virtually no seasonal temperature variation, averaging around 28°C throughout the year. Residents should expect high humidity, substantial rainfall, and the occasional tropical cyclone, with minor storms occurring regularly during March-April and October-November. The trade winds provide some relief from the oppressive heat, making the climate suitable for those adapted to tropical island living.