Solomon Islands in January: Weather, Crowds & What to Expect

Honiara & Guadalcanal Coast

Heavy tropical downpours and sticky heat dominate the area around Honiara in January, with humidity sitting high and sudden thunderstorms common in the afternoon. Urban drains and low-lying roads around Kukum and the Central Market can flood quickly after a deluge, so expect delays and pack waterproof footwear; WWII sites on the island are steamy and muddy but dramatic in the rain. Ferry sailings across Ironbottom Sound are sometimes cancelled in squalls, so keep flexible plans and lightweight rain gear.

Central Province (Florida Islands, Tulagi, Russell Islands)

Afternoon thunderstorms bruise the skies over Tulagi and the Florida Islands in January, leaving the small anchorages glassy and bright between squalls. Local dives around Tulagi and the nearby reefs remain appealing on calm windows, but expect short-notice cancellations of passenger boats from Honiara when weather turns; pack a waterproof daypack and be patient with schedules. Village homestays see heavy mosquito activity after rains, so bring repellent and a net if staying overnight.

Western Province (Gizo, New Georgia, Munda, Marovo Lagoon)

Torrential rains are common in January through much of the Western Province; Gizo and Munda are hot and very humid with frequent afternoon thunderstorms. Diving and wreck sites around Munda and Gizo can still be spectacular after a dry window, but expect sediment and run-off to reduce visibility following heavy downpours. Boat transfers between islands are often restricted during sustained wet spells - leave extra days for connections and bring waterproof storage for gear.

Malaita & Savo Coastal Areas

January’s heat and humidity in Malaita and the nearby volcanic island Savo are intense, with frequent heavy showers that can make road and village tracks muddy and slow. Auki, Malaita’s main town, is lively but expect travel within the island to be weather-dependent; traditional cultural activity continues rain or shine. Mosquito-borne illnesses are a year-round concern in rural areas, so bring repellent and consider antimalarial advice when planning long stays.

Temotu & Santa Cruz Islands (Tikopia, Anuta, Vanikoro)

Clouds and frequent heavy showers are typical across the Santa Cruz group in January, making many of the remote lagoons and coral gardens spill with runoff. Air connections are sparse and boat links are highly weather-dependent, so expect delays and bring extra fuel or supplies for longer island stays. Remote islands like Tikopia and Anuta remain extremely quiet in the wet season; pack insect protection and be prepared for limited services.

Rennell, Bellona & Makira-Ulawa (Southern islands)

January is hot, humid and often very wet on Rennell and Makira; Lake Tegano on Rennell swells with the seasonal rains, and tracks to inland sites become muddy and slow. Boat approaches to coastal villages can be affected by squalls, so expect river mouth closures and occasional supply disruptions. Travelers should bring insect protection and waterproof gear; UNESCO-listed Lake Tegano is dramatic but lush and buggy at this time.