– Peak season: October to April
– Rainy season: May to September
– Average water temperature: 27-30°C (81-86°F)
Understanding Sorong and Raja Ampat Weather

Sorong serves as the gateway to Raja Ampat, a renowned diving destination in West Papua, Indonesia. The region is characterized by its tropical climate, influenced by the monsoon system. Understanding the monthly weather conditions is crucial for planning liveaboard trips to ensure an enjoyable and productive diving experience.
Monthly Weather Breakdown
January
January is part of the rainy season in Raja Ampat. While rain is frequent, it typically comes in short bursts, leaving plenty of time for diving. Average temperatures range from 24°C to 30°C (75°F to 86°F), with water temperatures around 28°C (82°F).
February
February is similar to January, with high humidity and occasional rain. Dive visibility remains good, often reaching 20-30 meters (65-100 feet). It’s a popular month for divers, with comfortable water temperatures and relatively calm seas.
March
As the rainy season continues, March often sees a slight decrease in rainfall. Conditions for diving improve, with clearer waters and better visibility. Expect temperatures between 24°C and 31°C (75°F to 88°F). This month marks the transition towards the dry season.
April
April is one of the best months for liveaboard diving in Raja Ampat. The weather is typically dry, and visibility can exceed 30 meters (100 feet). Water temperatures hover around 28°C (82°F). Divers can enjoy vibrant marine life and expansive coral reefs.
May
May marks the beginning of the dry season. Although rainfall is low, occasional showers may occur. Water temperatures remain steady at around 28°C (82°F). Dive sites are less crowded, offering a more tranquil diving experience.
June
June features warm, dry weather, making it an excellent month for diving. Average temperatures range from 24°C to 30°C (75°F to 86°F). Visibility is usually good, and the chances of encountering larger marine species increase.
July
July continues the dry season trend with warm weather and minimal rainfall. Water temperatures remain comfortable at about 27°C to 29°C (81°F to 84°F). Visibility can vary but often remains favorable, making it an ideal month for underwater photography.
August
August is one of the driest months in Raja Ampat. Average air temperatures range between 24°C and 31°C (75°F to 88°F). This month is generally favored by divers for its excellent visibility and calm seas, perfect for exploring the rich underwater ecosystems.
September
September marks the transition back to the rainy season. While occasional rain showers may occur, diving conditions can still be favorable. Water temperatures remain warm at around 28°C (82°F), and visibility can still exceed 20 meters (65 feet).
Best Months for Liveaboard Trips
The best months for liveaboard diving from Sorong to Raja Ampat are typically from October to April. During this period, conditions are more favorable for divers, with better visibility and calmer seas.
- October: Start of the dry season, excellent visibility.
- November: Continued dry weather, great for diving.
- December: Warm temperatures and good visibility.
Getting to Sorong and Raja Ampat
Reaching Sorong, the starting point for liveaboard trips to Raja Ampat, involves flying into Domine Eduard Osok Airport (SOQ). Flights are available from major Indonesian cities such as Jakarta and Makassar. Airlines like Garuda Indonesia and Lion Air operate flights with prices ranging from USD 150 to USD 300, depending on the season and booking time.
From Sorong, liveaboard operators typically arrange transfers to the harbor where the boats depart. The journey from Sorong to Raja Ampat’s diving sites can take between 2 to 4 hours, depending on the itinerary and weather conditions.
Choosing the Right Liveaboard
When selecting a liveaboard, consider factors such as the duration of the trip, amenities offered, and specific dive sites included. Some popular liveaboard operators in the region include the MSY Seahorse, MV Mermaid I & II, and the Raja Ampat Aggressor. Trips can range from 5 to 12 nights, with prices starting at approximately USD 1,500 for a standard cabin on a 7-night itinerary.
Many liveaboards offer additional services such as dive gear rental, nitrox, and photography workshops. It’s advisable to book well in advance, especially during peak season, to secure your preferred dates and cabin type.
Liveaboard Options and Pricing
Sorong liveaboards offer various packages catering to different diving levels and preferences. Prices can vary based on the duration of the trip, type of accommodation, and inclusions such as meals and equipment rental. Generally, liveaboard trip costs range from USD 1,000 to USD 2,500 per person for a week-long journey.
See current rates for available liveaboard options and detailed itineraries. Most liveaboard trips include stops at popular dive sites in the Dampier Strait and Misool regions, known for their rich biodiversity and striking coral reefs.
Month-by-Month Weather Insights for Sorong Liveaboards
For those eyeing a liveaboard trip around Sorong, understanding the month-specific weather patterns is essential. In the dry season, from October to April, expect calm seas and excellent visibility, perfect for divers wanting to explore Raja Ampat’s reefs. Conversely, the rainy season offers a quieter experience with fewer tourists, despite the occasional showers. Equip yourself with this knowledge to tailor your journey to your preferences and make the most of Raja Ampat’s underwater paradise.
For detailed travel plans, check out Sorong Liveaboard or Sorong Liveaboard.