Longas
Located in front of the Carreiros jetty, this dive site in Portugal is easily accessible either by the beach or by boat. The underwater terrain offers a varied relief with a combination of rocks and sandy passages. Divers can explore depths ranging from 3 to 20 meters, depending on the distance from the coast.
Divers of all levels will have the opportunity to observe an array of marine life at this site. Common sightings include pout, sea bream, mullet, sea bass, octopus, rockfish, conger eels, and various species of crustaceans.
This spacious dive location allows swimmers to navigate effortlessly between scattered rocks and fine white sand areas. While there may be occasional surface currents, bottom currents are practically non-existent. However, since this dive is near the coast, it's important to check sea conditions and be mindful of potential undulations.
With an average visibility of 5 meters, it is recommended to use a 7mm isothermal suit to ensure comfortable temperatures during the dive. The average water temperature is around 13ºC. The best time to experience this dive site is between June and September.
Whether you're a beginner or an experienced diver, this dive site offers an accessible and captivating underwater experience. Take advantage of the beautiful coastal location and immerse yourself in the wonders of the underwater world.
Divers of all levels will have the opportunity to observe an array of marine life at this site. Common sightings include pout, sea bream, mullet, sea bass, octopus, rockfish, conger eels, and various species of crustaceans.
This spacious dive location allows swimmers to navigate effortlessly between scattered rocks and fine white sand areas. While there may be occasional surface currents, bottom currents are practically non-existent. However, since this dive is near the coast, it's important to check sea conditions and be mindful of potential undulations.
With an average visibility of 5 meters, it is recommended to use a 7mm isothermal suit to ensure comfortable temperatures during the dive. The average water temperature is around 13ºC. The best time to experience this dive site is between June and September.
Whether you're a beginner or an experienced diver, this dive site offers an accessible and captivating underwater experience. Take advantage of the beautiful coastal location and immerse yourself in the wonders of the underwater world.
Diving Conditions Score for Longas
5.1
AverageAverage conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Longas
Depth
12m
Visibility
5m
Experience Level
beginner
Weather Conditions for Longas
Wave Height
0.72m
Wind Speed
3.5 m/s
Water Temp
16.9°C
Visibility
760m
Cloud Cover
98%
Wave Period
5.7s
Air Temperature
17.6°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Longas
Alpha
Dive Score Chart for Longas
Best time to dive: 10:00 with score 7.27/10. Water conditions: Waves 0.9m, Wind 2.4 m/s.Best night dive time: 20:00 with score 7.0110628019323675/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Longas: 06:00
Sunset at Longas: 18:00
Optimal diving conditions at Longas 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
10:00Score: 7.3/10
Waves: 0.9m (5.8s), Wind: 2.4 m/s
Best Night
20:00Score: 7.0/10
Waves: 0.82m, Wind: 3.8 m/s
Seasonal Analysis for LongasAlpha
Historical patterns and best seasons for diving at Longas
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 Longas
Winter
Avg. Score: 8.1/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Longas
January
Score: 8.4
February
Score: 8.1
December
Score: 7.7
Ideal Conditions for Longas
Water Temp
22.1°C / 71.8°F
July
Visibility
13.9m / 45.6ft
January
Wave Height
1.2m / 3.9ft
January
Wave Period
8.0s
January
Seasonal Insights for Longas
Longas shows typical northern hemisphere patterns with July being the warmest month (22.1°C) and January the coldest (7.2°C). The calmest conditions typically occur in January with average wave heights of 1.2m 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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