Cavernas
This dive site in Portugal, near Arneiros das Bicas in Sesimbra, is a thrilling and challenging experience for adventurous divers. With its intricate maze-like structure, the dive offers a real orientation challenge. The area features a sandy bottom, with large rocks that have eroded over time, creating numerous holes ranging from 10 meters to more without an exit.
Divers can expect a visibility of 9 meters and a maximum depth of 21 meters. This dive is suitable for beginners, providing an opportunity to test their skills and push their limits.
The marine life at this site is abundant and diverse. Divers can observe large schools of juvenile fish from various species, adding to the allure of the underwater world. Additionally, common marine species such as octopus, cuttlefish, sea bream, and mullets can also be spotted during the dive.
Embark on this exciting underwater adventure and explore the captivating maze of holes in the beautiful waters of Portugal.
Divers can expect a visibility of 9 meters and a maximum depth of 21 meters. This dive is suitable for beginners, providing an opportunity to test their skills and push their limits.
The marine life at this site is abundant and diverse. Divers can observe large schools of juvenile fish from various species, adding to the allure of the underwater world. Additionally, common marine species such as octopus, cuttlefish, sea bream, and mullets can also be spotted during the dive.
Embark on this exciting underwater adventure and explore the captivating maze of holes in the beautiful waters of Portugal.
Diving Conditions Score for Cavernas
5.9
AverageAverage conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Cavernas
Depth
21m
Visibility
9m
Experience Level
beginner
Weather Conditions for Cavernas
Wave Height
1.24m
Wind Speed
12 m/s
Water Temp
17°C
Visibility
20.3km
Cloud Cover
15%
Wave Period
6.75s
Air Temperature
23.8°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Cavernas
Alpha
Dive Score Chart for Cavernas
Best time to dive: 6:00 with score 7.036297435897437/10. Water conditions: Waves 0.94m, Wind 9.8 m/s.Best night dive time: 23:00 with score 6.715483870967742/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Cavernas: 06:00
Sunset at Cavernas: 18:00
Optimal diving conditions at Cavernas 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
6:00Score: 7.0/10
Waves: 0.94m (6.5s), Wind: 9.8 m/s
Best Night
23:00Score: 6.7/10
Waves: 1.16m, Wind: 5.4 m/s
Seasonal Analysis for CavernasAlpha
Historical patterns and best seasons for diving at Cavernas
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 Cavernas
Winter
Avg. Score: 8.2/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Cavernas
January
Score: 8.7
February
Score: 8.2
December
Score: 7.7
Ideal Conditions for Cavernas
Water Temp
22.7°C / 72.9°F
July
Visibility
15.3m / 50.2ft
January
Wave Height
0.9m / 3.0ft
January
Wave Period
8.0s
January
Seasonal Insights for Cavernas
Cavernas shows typical northern hemisphere patterns with July being the warmest month (22.7°C) and January the coldest (8.2°C). The calmest conditions typically occur in January with average wave heights of 0.9m 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 16, 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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