Things to Do in Solomon Islands in September

September weather, activities, events & insider tips

September Weather in Solomon Islands

High Temp

Low Temp

Rainfall

% Humidity

Is September Right for You?

Advantages

Late dry season conditions with minimal rainfall 180 mm (7.1 inches) - perfect for diving visibility reaching 30 m (98 ft) in outer reef areas
Consistent southeast trade winds 15-20 knots create ideal sailing conditions and keep temperatures comfortable at 29°C (84°F)
School holiday period ends, reducing domestic tourist crowds by 40% at major sites like Bonegi Beach and Guadalcanal battlefields
Prime fishing season begins - yellowfin tuna and mahi-mahi migrations peak, with local fishing tournaments offering cultural immersion opportunities

Considerations

Transitional month toward wet season means unpredictable afternoon showers lasting 30-45 minutes on 10 days throughout the month
Higher accommodation prices as international visitors arrive before October peak season - expect 20-30% premium over dry season rates
Strong UV index of 8 requires constant sun protection, especially dangerous for reef activities with water reflection amplifying exposure

Best Activities in September

Guadalcanal WWII Battlefield Tours

September's dry conditions provide excellent access to Henderson Airfield, Red Beach landing sites, and jungle battlefields. Temperatures of 29°C (84°F) are manageable for full-day historical tours, while reduced rainfall means clear photography conditions at Bloody Ridge and aircraft wreck sites. Local guides share oral histories passed down from village elders who witnessed the battles.

Booking Tip: Book 7-10 days ahead through certified historical tour operators. Full-day tours typically cost SBD 800-1200 per person. Look for guides certified by the Solomon Islands Visitors Bureau and include transport, lunch, and site entrance fees. Reference booking widget for current tour availability.

Marovo Lagoon Diving Expeditions

World's largest double-barrier coral lagoon offers pristine visibility in September's stable weather. Water temperature holds steady at 27°C (81°F) with minimal current, perfect for both beginners and technical divers. September marks peak coral spawning season, creating unique underwater photography opportunities. Reduced rainfall means calm boat conditions for reaching outer reef sites.

Booking Tip: Book 14-21 days ahead through PADI-certified dive operators. Multi-day packages typically cost SBD 2000-3500 including equipment, boat transfers, and meals. Ensure operators carry marine park permits and emergency oxygen. Check current dive packages in booking section below.

Traditional Village Cultural Immersion

September harvest season allows visitors to participate in yam and taro ceremonies across Malaita and Western Province villages. Dry weather provides better access to remote communities via unpaved roads. Village stays include traditional leaf house accommodation, participation in fishing expeditions, and witnessing custom ceremonies rarely performed for tourists.

Booking Tip: Arrange through community-based tourism operators 10-14 days ahead. Village stays typically cost SBD 300-500 per day including meals and activities. Confirm village chief permissions and bring appropriate gifts (school supplies, basic medicines). See current cultural tour options in booking widget below.

Russell Islands Game Fishing Charters

September marks peak season for yellowfin tuna, wahoo, and Spanish mackerel as they follow baitfish migrations. Calm seas and consistent trade winds create perfect conditions for both trolling and bottom fishing. Local tournaments in late September offer chances to fish alongside Solomon Islander crews using traditional techniques combined with modern equipment.

Booking Tip: Charter boats 14-21 days ahead, especially for tournament dates in late September. Full-day charters typically cost SBD 1500-2800 for 4-6 people including equipment and lunch. Verify boat safety equipment and fishing licenses. Current charter availability shown in booking section below.

Rennell Island Endemic Wildlife Tracking

UNESCO World Heritage site offers unique biodiversity experiences during September's dry conditions. Raised coral atoll environment supports endemic species like Rennell flying fox and four endemic bird species. Dry weather provides better access to Lake Tegano, world's largest enclosed water body on a raised coral atoll, spanning 15.5 km (9.6 miles) long.

Booking Tip: Book through specialized eco-tour operators 21-28 days ahead due to limited accommodation and transport. Multi-day packages typically cost SBD 2500-4000 including flights, accommodation, and guided walks. Verify UNESCO permit requirements and current booking options in widget below.

Honiara Central Market Food Discovery

September harvest season brings peak variety of local produce to Honiara's central market. Early morning visits reveal tropical fruits, fresh reef fish, and traditional foods like lap lap cooked in earth ovens. Market vendors offer cooking demonstrations and explain traditional food preparation methods. Morning temperatures of 24°C (75°F) make extended market exploration comfortable.

Booking Tip: Join guided food tours 3-5 days ahead for cultural context and language assistance. Tours typically cost SBD 200-400 per person including tastings and market purchases. Early morning departure (6:30 AM) recommended for best selection and cooler temperatures. Check current food tour availability in booking widget.

September Events & Festivals

September 7th

Independence Day Celebrations

National holiday on September 7th features traditional dancing, canoe races in Honiara harbor, and village cultural demonstrations. Street parades showcase provincial cultures with traditional dress, string bands, and custom ceremonies. Food stalls serve traditional dishes rarely available to tourists year-round.

Late September

Marovo Lagoon Fishing Tournament

Annual sport fishing competition attracts local and international anglers targeting yellowfin tuna and Spanish mackerel. Three-day event includes traditional fishing methods demonstrations, village feast celebrations, and prize ceremonies. Visitors can participate or observe from support boats.

Essential Tips

What to Pack

Quick-dry synthetic shirts - 70% humidity makes cotton uncomfortable and slow to dry after afternoon showers

Reef-safe sunscreen SPF 50+ - UV index of 8 plus water reflection creates severe burn risk in 15 minutes

Lightweight rain jacket or poncho - afternoon showers last 30-45 minutes and can soak through standard clothing

Closed-toe water shoes - essential for reef walking and protection from stone fish in shallow lagoon areas

Insect repellent containing 20-30% DEET - September begins increased mosquito activity with transition toward wet season

Waterproof phone case and camera protection - sudden showers and boat spray common during island transfers

Long-sleeve rashguard for snorkeling - prevents sunburn and provides protection from coral cuts and jellyfish

Cash in small Solomon Dollar bills - many village activities and local transport require exact change, cards rarely accepted outside Honiara

Basic first aid supplies including antiseptic - remote locations have limited medical facilities and coral cuts heal slowly in tropical conditions

Portable phone charger - power outages common in outer islands and villages, backup power essential for emergency communication

Insider Knowledge

Book domestic flights through Solomon Airlines 14+ days ahead as September begins busy season and weather delays can cascade, creating multi-day backlogs on popular routes to Munda and Gizo

Carry exact change in Solomon Dollars for village activities and local transport - exchange rates fluctuate and ATMs outside Honiara frequently run empty during busy periods

Plan indoor backup activities for 3-4 PM period when afternoon thunderstorms most commonly occur - museums, markets, and cultural centers provide air-conditioned alternatives

Local fishing boats offer cheaper inter-island transport than tourist boats but operate on 'island time' - departure schedules flexible based on weather and passenger loads, confirm evening before travel