Typical water temperatures for diving the Derawan region

The Derawan archipelago, located off the coast of East Kalimantan, Indonesia, is renowned for its rich marine biodiversity and vibrant underwater ecosystems. The region comprises several islands, including Maratua, Kakaban, and Sangalaki, each offering unique dive experiences. Understanding the water temperatures in this area is crucial for planning a successful diving trip.

Understanding Water Temperatures in the Derawan Region

The water temperatures in the Derawan region are generally warm, providing a comfortable diving experience year-round. However, fluctuations do occur based on seasonal changes and ocean currents. Below is an overview of the typical water temperatures you can expect in this area:

Monthly Water Temperature Averages

• January: 26°C (79°F)
• February: 26°C (79°F)
• March: 27°C (81°F)
• April: 28°C (82°F)
• May: 29°C (84°F)
• June: 29°C (84°F)
• July: 29°C (84°F)
• August: 29°C (84°F)
• September: 29°C (84°F)
• October: 29°C (84°F)
• November: 28°C (82°F)
• December: 27°C (81°F)

The average water temperature peaks during the months of May to October, making this period ideal for divers looking to explore the underwater scenery comfortably. Conversely, the cooler months of December through March are still enjoyable, albeit slightly less warm.

Best Months for Diving in Derawan

The best months for diving in the Derawan region are typically from April to November. During this time, the water temperatures are at their most inviting, and visibility is often at its peak. Additionally, this period aligns with the dry season, which generally means calmer seas and fewer weather disruptions.

Seasonal Considerations

• Dry Season (April to November): Water temperatures between 28°C to 30°C (82°F to 86°F). Optimal diving conditions.
• Wet Season (December to March): Water temperatures range from 26°C to 28°C (79°F to 82°F). Slightly cooler but still suitable for diving.

During the dry season, divers can expect excellent marine life sightings, including manta rays and sea turtles, particularly around Sangalaki Island, which is famous for its vibrant ecosystems and pelagic species.

Diving Conditions and Visibility

Aside from temperature, visibility is another critical factor for divers. In the Derawan region, visibility can range from 15 meters to over 30 meters (49 to 98 feet) depending on the dive site and conditions. Generally, visibility is best during the dry season, making it an excellent time for underwater photography and exploring the vibrant coral reefs.

Marine Life to Expect

Diving in the Derawan region offers encounters with a diverse range of marine life. The warm water temperatures support a variety of species, including:

• Pelagic species: Manta rays, whale sharks, and various species of sharks.
• Reef fish: Colorful anemonefish, wrasses, and parrotfish.
• Invertebrates: Turtles, sea slugs, and a variety of crustaceans.

Each dive site within the archipelago has its unique ecosystem, making it worthwhile to explore multiple locations. Maratua offers striking wall dives, while Kakaban is known for its jellyfish lake. Sangalaki is a prime site for observing manta rays.

What to Bring for Your Dive Trip

When preparing for a diving trip in the Derawan region, consider packing the following items:

• Diving wetsuit: A 3mm wetsuit is generally sufficient for the water temperatures, although some divers may prefer a 5mm suit during the cooler months.
• Dive gear: Ensure you have your own gear, including a regulator, BCD, and dive computer, or check with your liveaboard for rental options.
• Underwater camera: Take advantage of the striking marine life and vibrant coral reefs with an underwater camera.

Many liveaboard operators provide all necessary equipment, but having your own gear can enhance comfort and familiarity.

Pricing and Booking Your Liveaboard

Pricing for liveaboard dive cruises in the Derawan region varies based on the duration of the trip, accommodations, and included services. Generally, prices range from $1,200 to $2,500 USD per week. This includes meals, accommodations, and diving activities. For specific details on available packages and booking options, visit our booking details.

It is advisable to book your liveaboard well in advance, especially during peak diving months. This ensures you secure a spot on a vessel that fits your diving needs and budget.

Conclusion

Understanding the typical water temperatures in the Derawan region is essential for planning a successful dive trip. With warm water temperatures ranging from 26°C to 30°C, and ideal diving conditions from April to November, divers can look forward to exploring the rich marine biodiversity of this beautiful archipelago. Prepare accordingly, and enjoy the underwater adventures that await in Derawan.