Posidonia Reef
Welcome to the Posidonia Dive Site, located in the crystal-clear waters of Greece. Named after the abundant seaweed Posidonia, this dive site offers a breathtaking underwater experience. Dive enthusiasts of all levels will be enchanted by the unique rock formations that hint at ancient human activity.
As you explore this dive site, you'll be immersed in a picturesque underwater landscape, adorned with a combination of seaweed, sand, and rocks. This diverse ecosystem provides a perfect habitat for various marine species, including vibrant schools of small fish, majestic Groupers, elusive Octopus, and mesmerizing Moray Eels.
With a maximum depth of 13 meters and excellent visibility of up to 15 meters, this dive site offers an ideal environment for beginners. Whether you're just starting your underwater journey or looking for a leisurely dive, Posidonia Dive Site will captivate you with its beauty and tranquility.
Access to this remarkable dive site is conveniently available by boat, ensuring a seamless and enjoyable diving experience. So, grab your gear and get ready to embark on an unforgettable underwater adventure at the Posidonia Dive Site in Greece.
Location: Limenas Chersonisou, Chersonisos Municipal Unit, Municipality of Chersonissos, Heraklion Regional Unit, Region of Crete, 70014, Greece
Depth: 10-12 meters
Duration: 45-50 minutes
As you explore this dive site, you'll be immersed in a picturesque underwater landscape, adorned with a combination of seaweed, sand, and rocks. This diverse ecosystem provides a perfect habitat for various marine species, including vibrant schools of small fish, majestic Groupers, elusive Octopus, and mesmerizing Moray Eels.
With a maximum depth of 13 meters and excellent visibility of up to 15 meters, this dive site offers an ideal environment for beginners. Whether you're just starting your underwater journey or looking for a leisurely dive, Posidonia Dive Site will captivate you with its beauty and tranquility.
Access to this remarkable dive site is conveniently available by boat, ensuring a seamless and enjoyable diving experience. So, grab your gear and get ready to embark on an unforgettable underwater adventure at the Posidonia Dive Site in Greece.
Location: Limenas Chersonisou, Chersonisos Municipal Unit, Municipality of Chersonissos, Heraklion Regional Unit, Region of Crete, 70014, Greece
Depth: 10-12 meters
Duration: 45-50 minutes
Diving Conditions Score for Posidonia Reef
7.3
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Posidonia Reef
Depth
13m
Visibility
15m
Experience Level
beginner
Weather Conditions for Posidonia Reef
Wave Height
1.14m
Wind Speed
11.8 m/s
Water Temp
24.4°C
Visibility
36.02km
Cloud Cover
84%
Wave Period
4.95s
Air Temperature
22.4°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Posidonia Reef
Alpha
Dive Score Chart for Posidonia Reef
Best time to dive: 11:00 with score 7.282733333333333/10. Water conditions: Waves 1.16m, Wind 19.3 m/s.Best night dive time: 21:00 with score 6.8914/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Posidonia Reef: 06:00
Sunset at Posidonia Reef: 18:00
Optimal diving conditions at Posidonia Reef 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: 7.3/10
Waves: 1.16m (5s), Wind: 19.3 m/s
Best Night
21:00Score: 6.9/10
Waves: 1.08m, Wind: 10.2 m/s
Seasonal Analysis for Posidonia ReefAlpha
Historical patterns and best seasons for diving at Posidonia Reef
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 Posidonia Reef
Winter
Avg. Score: 8.3/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Posidonia Reef
December
Score: 8.8
January
Score: 8.1
February
Score: 8.0
Ideal Conditions for Posidonia Reef
Water Temp
25.3°C / 77.5°F
July
Visibility
17.4m / 57.1ft
December
Wave Height
0.6m / 2.0ft
December
Wave Period
8.0s
January
Seasonal Insights for Posidonia Reef
Posidonia Reef shows typical northern hemisphere patterns with July being the warmest month (25.3°C) and January the coldest (7.7°C). The calmest conditions typically occur in December with average wave heights of 0.6m 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). April 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 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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