Rottnest Island
Explore the underwater wonders of this dive site in Australia. Immerse yourself in the beauty of caves and bomi walls, but stay mindful of potential currents in certain areas. Witness a vibrant marine ecosystem with schools of small reef fish, lobster, and an array of nudibranchs. With a visibility of 12m and a maximum depth of 16m, this beginner-friendly dive is perfect for divers of all levels. Located in the Rottnest Island State Reserve, Rottnest Island, City Of Cockburn, Western Australia, 6161, Australia, this site offers a memorable diving experience.
Diving Conditions Score for Rottnest Island
4.6
Below AverageChallenging conditions, for experienced divers only.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Rottnest Island
Depth
16m
Visibility
12m
Experience Level
beginner
Weather Conditions for Rottnest Island
Wave Height
1.6m
Wind Speed
25 m/s
Water Temp
19.8°C
Visibility
49.16km
Cloud Cover
100%
Wave Period
11.15s
Air Temperature
17.5°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Rottnest Island
Alpha
Dive Score Chart for Rottnest Island
Best time to dive: 15:00 with score 5.508087431693989/10. Water conditions: Waves 1.62m, Wind 13.3 m/s.Best night dive time: 0:00 with score 5.115747126436782/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Rottnest Island: 06:00
Sunset at Rottnest Island: 18:00
Optimal diving conditions at Rottnest Island 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.
Best Overall
15:00Score: 5.5/10
Waves: 1.62m (12.2s), Wind: 13.3 m/s
Safest Overall
14:00Score: 5.5/10
Waves: 1.6m (12.15s), Wind: 15.2 m/s
Best Night
0:00Score: 5.1/10
Waves: 1.44m, Wind: 25.5 m/s
Seasonal Analysis for Rottnest IslandAlpha
Historical patterns and best seasons for diving at Rottnest Island
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 Rottnest Island
Summer
Avg. Score: 8.4/10
Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.
Best Months for Rottnest Island
July
Score: 8.5
June
Score: 8.4
August
Score: 8.4
Ideal Conditions for Rottnest Island
Water Temp
20.3°C / 68.5°F
February
Visibility
12.0m / 39.4ft
May
Wave Height
3.1m / 10.2ft
February
Wave Period
8.0s
January
Seasonal Insights for Rottnest Island
Rottnest Island follows southern hemisphere patterns with February being the warmest month (20.3°C) and October the coldest (13.0°C). The calmest conditions typically occur in February with average wave heights of 3.1m and wave periods of 8.0s. The most comfortable wave conditions are in February 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 February to April, 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 21, 2026
Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.
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