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

Honiara & Guadalcanal Coast

Warm, wet conditions continue through March with persistent humidity that makes walking the WWII trails on Guadalcanal feel sweat-soaked; however the rivers and waterfalls swell, rewarding inland treks with more impressive cascades. If you’re visiting the Solomon Islands National Museum or the Parliament precinct, aim for early mornings before the afternoon storms; boat trips out to nearby reefs are possible on calm windows but can be choppy. Expect crowds around the capital to be the usual local mix rather than international mass tourism; bring quick-dry clothing and waterproof bags for cameras.

Central Province (Florida Islands, Tulagi, Russell Islands)

March typically brings persistent humidity and frequent heavy rain to the central island chains, making day trips to the dispersed settlements wetter and muddier. The marine life around coral bommies shows well when the seas settle, but boat operators reduce schedules during consecutive bad-weather days; always agree return times and contingency plans. Packing multiple quick-dry layers and a compact waterproof is wise for exploring village tracks and WWII relics.

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

March continues the wet pattern with strong humidity and regular tropical squalls; waterfalls and river flows peak inland, making jungle hiking dramatic but slippery. Wreck dives remain an attraction when sea windows allow, though operators are cautious about unpredictable weather; pack sensible footwear and flexible travel plans. Local communities are busy with subsistence tasks between storms, so arranged homestays and cultural visits are rewarding if you accept occasional weather interruptions.

Malaita & Savo Coastal Areas

March keeps the pattern of high humidity and plentiful rain, swelling small streams and making some inland tracks impassable without proper footwear. The coastal waters off Malaita can be rough in squalls, though sheltered bays allow for short snorkels after dry intervals. Pack for wet conditions, sturdy shoes for trails, and allow flexibility in itineraries for postponed cultural exchanges or delayed boat runs.

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

March keeps a high potential for heavy, short-lived storms that make small-boat transfers unpredictable; inter-island shipping is infrequent and often postponed after multiple bad-weather days. When weather allows, the reefs and coastal dives can still be rich, but expect reduced clarity immediately after sustained rain. Bring waterproofing for luggage and allow additional days in your itinerary for missed connections.

Rennell, Bellona & Makira-Ulawa (Southern islands)

March keeps rivers running high and vegetation dense, with frequent afternoon storms that reorganize local schedules and can make some community paths impassable. The ocean can be choppy between squalls, complicating inter-island crossings; pack for wet conditions and carry water purification as needed. For visitors who accept the wet-season pace, cultural visits remain possible but require patience and flexibility.