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Sand Key Lighthouse

Sand Key, located in Monroe County, Florida, United States, is an exquisite dive site nestled within a Sanctuary Preservation area. Once a thriving island, Sand Key has encountered natural forces such as erosion and hurricanes, resulting in its transformation into a picturesque patch of sand surrounded by an enchanting coral reef. This unique combination of sand and coral makes Sand Key a truly remarkable destination for divers and snorkelers.

The diverse marine life found at Sand Key reflects the vibrant Caribbean ecosystem. As you explore the depths, be prepared to encounter an array of captivating creatures, including nurse and reef sharks, majestic eagle rays, graceful sea turtles, and mesmerizing stingrays. Additionally, the waters of Sand Key are teeming with a colorful assortment of fish species, such as snapper, angelfish, grunts, parrotfish, and grouper.

With a visibility of 11m and a maximum depth of 10m, Sand Key offers an immersive experience for divers of all levels, making it an ideal location for beginners to embark on their underwater adventures. Whether you are captivated by the allure of the coral reef or fascinated by the allure of the marine inhabitants, Sand Key promises an unforgettable diving experience.

Embark on a journey to Sand Key, where the tranquility of the water, the beauty of the coral, and the diversity of marine life converge to create a truly remarkable dive and snorkel spot. Explore this hidden gem in the United States and immerse yourself in the captivating underwater world of Sand Key.

Diving Conditions Score for Sand Key Lighthouse

7.2
Good

Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Sand Key Lighthouse

Depth

10m

Visibility

11m

Experience Level

beginner

Weather Conditions for Sand Key Lighthouse

Wave Height

0.42m

Wind Speed

12.4 m/s

Water Temp

29.9°C

Visibility

19km

Cloud Cover

29%

Wave Period

4.55s

Air Temperature

28.8°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Sand Key Lighthouse
Alpha

Dive Score Chart for Sand Key Lighthouse

Best time to dive: 6:00 with score 7.70948205128205/10. Water conditions: Waves 0.42m, Wind 14.5 m/s.Best night dive time: 23:00 with score 7.721010101010101/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Sand Key Lighthouse: 06:00
Sunset at Sand Key Lighthouse: 18:00

Optimal diving conditions at Sand Key Lighthouse 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
23:00

Score: 7.7/10
Waves: 0.42m (4.95s), Wind: 2.6 m/s

🌞
Safest Overall
8:00

Score: 7.7/10
Waves: 0.42m (4.6s), Wind: 8.4 m/s

🌞
Best Day
6:00

Score: 7.7/10
Waves: 0.42m, Wind: 14.5 m/s

Seasonal Analysis for Sand Key Lighthouse
Alpha

Historical patterns and best seasons for diving at Sand Key Lighthouse

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 Sand Key Lighthouse

Winter

Avg. Score: 8.7/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for Sand Key Lighthouse

December
Score: 8.8
January
Score: 8.7
February
Score: 8.7

Ideal Conditions for Sand Key Lighthouse

Water Temp

Thermometer Emoji

27.5°C / 81.5°F

June

Visibility

Telescope Emoji

11.6m / 38.1ft

October

Wave Height

Wave Emoji

2.4m / 7.9ft

September

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Sand Key Lighthouse

Sand Key Lighthouse shows typical northern hemisphere patterns with July being the warmest month (28.4°C) and January the coldest (17.9°C). The calmest conditions typically occur in September with average wave heights of 2.4m and wave periods of 8.0s. The most comfortable wave conditions are in September 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). February is usually the driest month with 0.1mm of precipitation. For beginners, the best time to visit would be during September to November, 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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 20, 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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