Solomon Islands - When to Visit

When to Visit Solomon Islands

Climate guide & best times to travel

Monthly Climate Data for Solomon Islands Average temperature and rainfall by month Climate Overview 17°C 21°C 26°C 30°C 35°C Rainfall (mm) 0 181 363 Jan Jan: 30.0°C high, 23.0°C low, 277mm rain Feb Feb: 30.0°C high, 23.0°C low, 287mm rain Mar Mar: 30.0°C high, 23.0°C low, 363mm rain Apr Apr: 30.0°C high, 22.0°C low, 213mm rain May May: 30.0°C high, 22.0°C low, 142mm rain Jun Jun: 30.0°C high, 22.0°C low, 97mm rain Jul Jul: 30.0°C high, 22.0°C low, 99mm rain Aug Aug: 30.0°C high, 22.0°C low, 91mm rain Sep Sep: 30.0°C high, 22.0°C low, 94mm rain Oct Oct: 30.0°C high, 22.0°C low, 155mm rain Nov Nov: 30.0°C high, 22.0°C low, 142mm rain Dec Dec: 30.0°C high, 23.0°C low, 216mm rain Temperature Rainfall
The Solomon Islands sit close enough to the equator that temperature barely shifts across twelve months. Highs hover around 30°C (86-87°F) through every season. Overnight lows never drop far below 22°C (71-73°F). What changes, and changes meaningfully, is rainfall. Two seasons shape life here: a wet season driven by the northwest monsoon, roughly November through April, and a drier stretch of southeast trade-wind weather from May through October. Humidity sits at around 70 percent all year. The Solomon Islands are always warm and moist. There is a palpable difference between arriving in August with clear skies and just 91mm of rain for the month, versus arriving in March when the monthly total pushes past 360mm. The wet season is worth understanding beyond its numbers. For most monsoon months, rain comes in concentrated afternoon bursts: heavy, warm, usually brief. Grey all-day drizzle is rare. Mornings are often clear. Light on the lagoons is extraordinary. The islands carry on functioning. The complication is the cyclone window, roughly December through April. Tropical storms are not everyday occurrences. They can disrupt inter-island flights and ferry schedules at short notice. The outer islands become difficult to reach during serious weather events. The dry season brings cooler nights by Solomon Islands standards. July and August see lows around 22°C (71°F). Reliable sunshine follows. Seas grow calmer. Underwater visibility makes the WWII wrecks scattered around Iron Bottom Sound near Honiara look extraordinary. Most international visitors arrive then. This archipelago of roughly 900 islands sees enough spread-out tourism that you rarely feel crowded, even in peak months.

Best Time to Visit

Recommended timing for different travel styles.

Beach and relaxation
June through September is the reliable choice. August, with an average of around 91mm of rain for the month, tends to be the driest point of the year. The southeast trades keep the air moving pleasantly.
Cultural exploration
July and August again deliver good conditions. May is worth serious consideration. The wet season has wound down. The islands feel quieter. You will find more room to move through Honiara's central market and local villages. Competing for accommodation becomes less of an issue.
Adventure travelers and divers
Target the dry season broadly. June through October gives the best underwater visibility for wreck diving around the Solomon Islands. Conditions grow calmer for reaching the more remote archipelagos.
Budget-conscious travelers
January through March offer the most flexibility on accommodation and tours. March can be sodden. Inter-island connections are less reliable. For travelers who are flexible and patient, the Solomon Islands in the low season are both more affordable and noticeably emptier.

What to Pack

Essentials and seasonal recommendations for Solomon Islands.

Year-Round Essentials
Lightweight, breathable fabrics, linen, or technical quick-dry materials
are far more useful than cotton, which stays damp for hours after a rain shower or a sweaty afternoon walk.
Reef-safe sunscreen
matters both for your skin and because the marine environment around the Solomon Islands is worth protecting.
A good insect repellent
is essential regardless of season. Dengue is present in the archipelago, and covering up in the evenings is sensible practice.
A packable rain jacket or poncho
earns its weight even in the dry season, because afternoon showers can appear quickly and without much warning.
A wide-brim hat
handles the intense equatorial sun better than a baseball cap, on open boat transfers where there is no shade and the glare off the water is relentless.
A reusable water bottle with a built-in filter
is worth bringing. Tap water quality varies considerably across the archipelago.
wet season
Footwear
Quick-dry footwear with proper soles
Accessories
A waterproof dry bag for electronics and documents
dry season
Clothing
light long-sleeve options
Layering Tip
come in useful less for warmth than for sun protection on long passages between islands.
Plug Type
Type I plugs, the angled three-pin style used in Australia and New Zealand
Voltage
220 to 240 volts and 50Hz
Adapter Note
North American travelers need plug adapters and voltage converters. Check your power brick first. Most laptops and phone chargers handle dual voltage now. Read the small print. Skip the converter if yours does.
Skip These Items
Leave heavy denim at home. It dries slowly. Humidity makes this miserable in wet season. It is unnecessary weight in dry season too. Skip formal dress shoes. Skip heels. Solomon Islands terrain varies from uneven market pavements to muddy village paths. Dress footwear fails here. Do not pack a full-length thick wetsuit. Water stays warm year-round. A thin shorty or rash guard handles most diving. Avoid bulky camera equipment without waterproofing. Open-vessel boat transfers between islands mean constant spray. Your gear will get wet. Leave irreplaceable items behind. Leave fragile items too. Bags occasionally get completely wet here. Pack accordingly.
Full Packing Checklist

Interactive checklist with shopping links for every item you need.

View Solomon Islands Packing List →

Month-by-Month Guide

Climate conditions and crowd levels for each month of the year.

January

The wet season is in full effect. Honiara keeps its market and harbor activity regardless.

High 30°C (87°F)
Low 23°C (73°F)
Rainfall 277mm
Crowds low
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February

The cyclone risk remains real. Seas can be choppy. Inter-island travel is less predictable than you might hope.

High 30°C (86°F)
Low 23°C (73°F)
Rainfall 287mm
Crowds low
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March

Typically the wettest month in the Solomon Islands. The sheer volume of rain can complicate travel, to the outer islands. If your plans require reliable connections between destinations, this is the month to approach with the most flexibility.

High 30°C (86°F)
Low 23°C (73°F)
Rainfall 363mm
Crowds low
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April

Marks the shift. Rainfall drops. By mid-month the skies start opening more reliably. The sea begins to calm. It is a decent month for travelers who want improving conditions without peak-season demand on accommodation.

High 30°C (86°F)
Low 22°C (72°F)
Rainfall 213mm
Crowds low
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May

The transition completes itself. Diving conditions around the archipelago improve noticeably as the water clears after the monsoon. The outer island connections become more reliable.

High 30°C (87°F)
Low 22°C (73°F)
Rainfall 142mm
Crowds medium
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June

The southeast trades are established by now. The Solomon Islands take on a different character: brighter mornings, calmer anchorages, more predictable small-plane connections to the outer islands.

High 30°C (86°F)
Low 22°C (72°F)
Rainfall 97mm
Crowds medium
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July

The dry season is properly underway. This is one of the better months for multi-island travel. More reliable weather windows open between destinations.

High 30°C (86°F)
Low 22°C (71°F)
Rainfall 99mm
Crowds medium to high
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August

Generally the driest month in the Solomon Islands. Underwater visibility around Iron Bottom Sound and the outer reefs is typically at its annual best. Serious divers tend to cluster here.

High 30°C (86°F)
Low 22°C (71°F)
Rainfall 91mm
Crowds high
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September

Arguably the most pleasant combination of dry weather and slightly thinning crowds. Peak-holiday travelers head home.

High 30°C (87°F)
Low 22°C (72°F)
Rainfall 94mm
Crowds medium to high
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October

It is still comfortable. It is largely dry by comparison with the wet season. You will notice afternoon clouds building more frequently as the monsoon winds prepare to return.

High 30°C (87°F)
Low 22°C (72°F)
Rainfall 155mm
Crowds medium
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November

A transitional month as the northwest monsoon begins reasserting itself. Some years November feels mostly dry. Other years the rains arrive early and with force. Planning for flexibility pays off here.

High 30°C (87°F)
Low 22°C (72°F)
Rainfall 142mm
Crowds low
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December

Closes the year with the cyclone season properly open. The festive period brings some increase in regional visitors, from Australia and New Zealand. The Solomon Islands remain far less pressured than most Pacific destinations in December.

High 30°C (86°F)
Low 23°C (73°F)
Rainfall 216mm
Crowds low to medium
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