SAIL ROCK - GMI
The dive site is located in the 22, Thames-Coromandel District, Waikato area of New Zealand. It is known for its strong currents on the northern side of the rock and is often exposed to wind and swell. Dives at this location range in depth from 7 to 20 meters and offer easy navigation.
This dive site is particularly suitable for advanced divers, with a maximum depth of 19 meters. The visibility underwater is around 8 meters, allowing divers to encounter a diverse range of marine life, including porcupine fish and other common species found in New Zealand. The site's bottom is comprised of kelp and rocky reefs, with sandy areas appearing between 18 and 20 meters.
This dive site is particularly suitable for advanced divers, with a maximum depth of 19 meters. The visibility underwater is around 8 meters, allowing divers to encounter a diverse range of marine life, including porcupine fish and other common species found in New Zealand. The site's bottom is comprised of kelp and rocky reefs, with sandy areas appearing between 18 and 20 meters.
Diving Conditions Score for SAIL ROCK - GMI
5.4
AverageAverage conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for SAIL ROCK - GMI
Depth
19m
Visibility
8m
Experience Level
advanced
Weather Conditions for SAIL ROCK - GMI
Wave Height
0.62m
Wind Speed
21.8 m/s
Water Temp
16.5°C
Visibility
47.9km
Cloud Cover
3%
Wave Period
10s
Air Temperature
13.9°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for SAIL ROCK - GMI
Alpha
Dive Score Chart for SAIL ROCK - GMI
Best time to dive: 16:00 with score 7.699239837398374/10. Water conditions: Waves 0.64m, Wind 11.5 m/s.Best night dive time: 3:00 with score 7.06620655737705/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at SAIL ROCK - GMI: 06:00
Sunset at SAIL ROCK - GMI: 18:00
Optimal diving conditions at SAIL ROCK - GMI 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
16:00Score: 7.7/10
Waves: 0.64m (10.25s), Wind: 11.5 m/s
Best Night
3:00Score: 7.1/10
Waves: 0.48m, Wind: 26 m/s
Seasonal Analysis for SAIL ROCK - GMIAlpha
Historical patterns and best seasons for diving at SAIL ROCK - GMI
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 SAIL ROCK - GMI
Summer
Avg. Score: 7.9/10
Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.
Best Months for SAIL ROCK - GMI
July
Score: 8.0
June
Score: 7.8
August
Score: 7.8
Ideal Conditions for SAIL ROCK - GMI
Water Temp
18.3°C / 64.9°F
March
Visibility
11.9m / 39.0ft
May
Wave Height
1.8m / 5.9ft
December
Wave Period
8.0s
January
Seasonal Insights for SAIL ROCK - GMI
SAIL ROCK - GMI follows southern hemisphere patterns with March being the warmest month (18.3°C) and October the coldest (12.2°C). The calmest conditions typically occur in December with average wave heights of 1.8m and wave periods of 8.0s. The most comfortable wave conditions are in December 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 December to February, 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 18, 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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