Boulders Beach
Divers exploring Simonstown Boulders will be treated to a diverse marine ecosystem. The underwater landscape is adorned with kelp forests, home to a variety of fascinating sea creatures such as Jackass Penguins, Seals, Cape Urchins, Star Fish, Pyjama Catsharks, nudibranchs, and vibrant coral life.
True to its name, Simonstown Boulders features a captivating underwater terrain filled with numerous boulders waiting to be explored. Divers will also encounter a few caves and overhangs that create small hollows, providing shelter for the reef fish that call this site home. It is worth noting that this dive site is situated in a penguin reserve, adding an extra element of excitement to the experience.
With a visibility of 6 meters and a maximum depth of 8 meters, Simonstown Boulders offers optimal conditions for divers to explore and appreciate the wonders of the underwater world. Whether you are a beginner diver or a seasoned enthusiast, this dive site is a must-visit when exploring the captivating waters of South Africa.
Diving Conditions Score for Boulders Beach
Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Boulders Beach
Depth
8m
Visibility
6m
Experience Level
Weather Conditions for Boulders Beach
Wave Height
1.42m
Wind Speed
5.3 m/s
Water Temp
14°C
Visibility
39.28km
Cloud Cover
0%
Wave Period
9.45s
Air Temperature
14.2°C
Precipitation
0 mm
Dive Score Chart for Boulders Beach
Best time to dive: 12:00 with score 7.2440206185567/10. Water conditions: Waves 1.26m, Wind 1.7 m/s.Best night dive time: 18:00 with score 6.711533333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Boulders Beach 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: 7.2/10
Waves: 1.26m (9.7s), Wind: 1.7 m/s
Score: 6.7/10
Waves: 1.16m, Wind: 3 m/s
Seasonal Analysis for Boulders BeachAlpha
Historical patterns and best seasons for diving at Boulders Beach
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 Boulders Beach
Summer
Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.
Best Months for Boulders Beach
Ideal Conditions for Boulders Beach
Water Temp
17.6°C / 63.7°F
March
Visibility
12.0m / 39.4ft
June
Wave Height
2.0m / 6.6ft
February
Wave Period
8.0s
January
Seasonal Insights for Boulders Beach
Boulders Beach follows southern hemisphere patterns with March being the warmest month (17.6°C) and September the coldest (12.6°C). The calmest conditions typically occur in February with average wave heights of 2.0m 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 20, 2026