Gray Quarry
Gray Quarry is a non-profit organization dedicated to promoting scuba diving as a sport. We provide a safe and enjoyable environment for recreational diving and training. By paying dive entry fees, you contribute to the maintenance and improvement of the quarry.
At Gray Quarry, you can explore a diverse range of freshwater aquatic life. One of the unique features of our dive site is the absence of a thermocline, resulting in a constant water temperature from top to bottom. This ensures a comfortable diving experience for all.
With a visibility of 10m and a maximum depth of 18m, Gray Quarry is suitable for divers of all levels, from beginners to experts. Located in Johnson City, Washington County, Tennessee, United States, our dive site is easily accessible and offers a convenient location for diving enthusiasts.
Visit Gray Quarry for an unforgettable diving experience in the United States. Dive into our exceptional underwater world and discover the wonders that await you beneath the surface.
At Gray Quarry, you can explore a diverse range of freshwater aquatic life. One of the unique features of our dive site is the absence of a thermocline, resulting in a constant water temperature from top to bottom. This ensures a comfortable diving experience for all.
With a visibility of 10m and a maximum depth of 18m, Gray Quarry is suitable for divers of all levels, from beginners to experts. Located in Johnson City, Washington County, Tennessee, United States, our dive site is easily accessible and offers a convenient location for diving enthusiasts.
Visit Gray Quarry for an unforgettable diving experience in the United States. Dive into our exceptional underwater world and discover the wonders that await you beneath the surface.
Diving Conditions Score for Gray Quarry
6.5
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Gray Quarry
Depth
18m
Visibility
10m
Experience Level
beginner
advanced
expert
Weather Conditions for Gray Quarry
Wave Height
1m
Wind Speed
14.3 m/s
Water Temp
18°C
Visibility
33.6km
Cloud Cover
99%
Wave Period
8s
Air Temperature
26.3°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Gray Quarry
Alpha
Dive Score Chart for Gray Quarry
Best time to dive: 12:00 with score 7.590633333333333/10. Water conditions: Waves 1m, Wind 6.8 m/s.Best night dive time: 1:00 with score 7.302433333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Gray Quarry: 06:00
Sunset at Gray Quarry: 18:00
Optimal diving conditions at Gray Quarry 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
12:00Score: 7.6/10
Waves: 1m (8s), Wind: 6.8 m/s
Best Night
1:00Score: 7.3/10
Waves: 1m, Wind: 4.7 m/s
Seasonal Analysis for Gray QuarryAlpha
Historical patterns and best seasons for diving at Gray Quarry
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 Gray Quarry
Winter
Avg. Score: 9.8/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Gray Quarry
January
Score: 10.0
February
Score: 9.8
December
Score: 9.7
Ideal Conditions for Gray Quarry
Water Temp
23.6°C / 74.5°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Gray Quarry
Gray Quarry shows typical northern hemisphere patterns with June being the warmest month (23.6°C) and December the coldest (19.6°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
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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