Mono Island
Island Tropical island in Western Province, Solomon Islands
Part of the Treasury Islands in Western Province, Mono Island offers WWII wreck dives, village cultural visits and reef snorkeling in clear tropical water.
Mono Island is part of the Treasury Islands group in the Western Province of the Solomon Islands. It is a populated island with villages, coconut plantations and a history of wartime activity.
Visitors encounter village communities, coastal plantations and remnants related to World War II military operations carried out in the Treasury Islands in 1943. The island offers a perspective on rural life in the Western Province rather than developed tourist amenities.
During the Second World War the Treasury Islands were the scene of Allied landings and military activity; material traces and local memories of that period remain. Today the island is primarily inhabited and used for local livelihoods.
Mono Island lies within the Western Province of the Solomon Islands, among the smaller islands southwest of Bougainville and within the Solomon Islands’ island groups.
- WWII history: Contains visible World War II relics and memorials from Allied operations conducted in the Treasury Islands during 1943.
- Visitor facilities: Facilities on the island are limited, with small villages and subsistence agriculture rather than developed tourist infrastructure.
How to Get to Mono Island #
Mono Island is reached by inter-island boat from the Solomon Islands’ main centres; schedules are irregular and weather-dependent. Most international visitors arrive via Honiara and then transfer on local boats or charters. Arrange transport and guides in advance through a reliable local operator.
Tips for Visiting Mono Island #
- If planning a WWII history visit, hire a local guide who knows the battle sites and safe landing points.
- Bring mosquito protection and check for local health advisories - remote islands have limited medical facilities.
- Arrange supplies and fuel ahead of time; services are extremely limited on remote Solomon Islands isles.
Best Time to Visit Mono Island #
The dry season (roughly May-October) offers the most reliable access by boat and calmer seas for snorkeling or landing.
Weather & Climate near Mono Island #
Mono Island's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 22°C to 30°C. Heavy rainfall (3834 mm/year), wettest in July.
January
January is the warmest month with highs of 30°C and lows of 23°C. Heavy rain (334 mm).
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February
February is warm with highs of 30°C and lows of 23°C. Heavy rain (293 mm).
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March
March is warm with highs of 29°C and lows of 23°C. Heavy rain (367 mm).
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April
April is warm with highs of 29°C and lows of 23°C. Heavy rain (287 mm).
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May
May is warm with highs of 29°C and lows of 23°C. Heavy rain (267 mm).
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June
June is warm with highs of 28°C and lows of 22°C. Heavy rain (328 mm).
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July
July is warm with highs of 28°C and lows of 22°C. The wettest month with heavy rain (458 mm).
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August
August is warm with highs of 28°C and lows of 22°C. Heavy rain (346 mm).
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September
September is warm with highs of 28°C and lows of 22°C. Heavy rain (329 mm).
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October
October is warm with highs of 29°C and lows of 22°C. Heavy rain (293 mm).
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November
November is warm with highs of 29°C and lows of 23°C. Heavy rain (274 mm).
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December
December is the warmest month with highs of 30°C and lows of 23°C. Heavy rain (258 mm).
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