Onong’s House Reef
Explore the underwater realm and encounter fascinating creatures such as octopuses, clownfish, stonefish, cuttlefish, lionfish, nudibranchs, shrimps, crabs, pygmy seahorses, and many others.
With a visibility of up to 20 meters and a maximum depth of 20 meters, the crystal-clear waters allow for optimal exploration and vibrant underwater photography. Whether you are a beginner or an advanced diver, this dive spot caters to divers of various skill levels.
Experience the wonders of this remarkable dive site in Bunaken National Park, where nature's breathtaking beauty awaits. Plan your dive and immerse yourself in an extraordinary undersea paradise.
Diving Conditions Score for Onong’s House Reef
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Onong’s House Reef
Depth
20m
Visibility
20m
Experience Level
Weather Conditions for Onong’s House Reef
Wave Height
0.14m
Wind Speed
10 m/s
Water Temp
30.3°C
Visibility
15km
Cloud Cover
57.5%
Wave Period
3.85s
Air Temperature
20°C
Precipitation
0 mm
Dive Score Chart for Onong’s House Reef
Best time to dive: 6:00 with score 8.49/10. Water conditions: Waves 0.14m, Wind 10 m/s.Best night dive time: 0:00 with score 7.99/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Onong’s House Reef are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.
Score: 8.5/10
Waves: 0.14m (8s), Wind: 10 m/s
Score: 8.0/10
Waves: 0.14m, Wind: 10 m/s
Seasonal Analysis for Onong’s House ReefAlpha
Historical patterns and best seasons for diving at Onong’s House Reef
The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.
Monthly Dive Score Analysis - Seasonal Diving Conditions
Higher values indicate better diving conditions
Seasonal DiveScore Chart
This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.
Higher values indicate better diving conditions
Best Season for Onong’s House Reef
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Onong’s House Reef
Ideal Conditions for Onong’s House Reef
Water Temp
20.2°C / 68.4°F
June
Visibility
20.1m / 65.9ft
May
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Onong’s House Reef
Onong’s House Reef shows typical northern hemisphere patterns with June being the warmest month (20.2°C) and December the coldest (16.2°C). The calmest conditions typically occur in January with average wave heights of 0.2m and wave periods of 8.0s. The most comfortable wave conditions are in January with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.
Last updated: 1 min. ago - Jun 22, 2026