Blow Hole
Ideal for beginners, as well as those looking to refresh their skills, conduct gear tests or undergo training. With an average depth of 5 meters, this dive site boasts a sandy bottom surrounded by captivating rock formations and enchanting kelp forests. It is easily accessible by boat, offering convenience for divers of all levels.
Divers exploring this site will be treated to breathtaking underwater sights, including a variety of nudibranchs and an abundance of shy sharks. Additionally, this site serves as a breeding ground for spotted gully sharks, making it a truly remarkable destination. On rare occasions, lucky divers have even spotted pineapple fish.
Highly regarded by the Walker Bay Dive Academy, this dive site in South Africa provides an excellent opportunity to explore the captivating underwater world. With a visibility of 10 meters and a maximum depth of 13 meters, divers of all skill levels can enjoy this unforgettable experience.
Located close to New Harbour, Stil Street, Overstrand Ward 4, Hermanus, Overstrand Local Municipality, Overberg District Municipality, Western Cape, 7200, South Africa, this dive site offers a convenient and unforgettable diving adventure.
Divers exploring this site will be treated to breathtaking underwater sights, including a variety of nudibranchs and an abundance of shy sharks. Additionally, this site serves as a breeding ground for spotted gully sharks, making it a truly remarkable destination. On rare occasions, lucky divers have even spotted pineapple fish.
Highly regarded by the Walker Bay Dive Academy, this dive site in South Africa provides an excellent opportunity to explore the captivating underwater world. With a visibility of 10 meters and a maximum depth of 13 meters, divers of all skill levels can enjoy this unforgettable experience.
Located close to New Harbour, Stil Street, Overstrand Ward 4, Hermanus, Overstrand Local Municipality, Overberg District Municipality, Western Cape, 7200, South Africa, this dive site offers a convenient and unforgettable diving adventure.
Diving Conditions Score for Blow Hole
5.3
AverageAverage conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Blow Hole
Depth
13m
Visibility
10m
Experience Level
beginner
Weather Conditions for Blow Hole
Wave Height
1.96m
Wind Speed
5.9 m/s
Water Temp
15.3°C
Visibility
40.36km
Cloud Cover
98%
Wave Period
10.2s
Air Temperature
18.2°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Blow Hole
Alpha
Dive Score Chart for Blow Hole
Best time to dive: 11:00 with score 6.5633333333333335/10. Water conditions: Waves 1.96m, Wind 1.5 m/s.Best night dive time: 0:00 with score 5.801800000000001/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Blow Hole: 06:00
Sunset at Blow Hole: 18:00
Optimal diving conditions at Blow Hole 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
11:00Score: 6.6/10
Waves: 1.96m (10.2s), Wind: 1.5 m/s
Best Night
0:00Score: 5.8/10
Waves: 1.92m, Wind: 4.1 m/s
Seasonal Analysis for Blow HoleAlpha
Historical patterns and best seasons for diving at Blow Hole
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 Blow Hole
Summer
Avg. Score: 8.5/10
Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.
Best Months for Blow Hole
July
Score: 8.7
June
Score: 8.5
August
Score: 8.4
Ideal Conditions for Blow Hole
Water Temp
18.7°C / 65.7°F
March
Visibility
12.0m / 39.4ft
May
Wave Height
1.6m / 5.2ft
February
Wave Period
8.0s
January
Seasonal Insights for Blow Hole
Blow Hole follows southern hemisphere patterns with March being the warmest month (18.7°C) and September the coldest (12.1°C). The calmest conditions typically occur in February with average wave heights of 1.6m 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 - Jul 6, 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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