Los Sombréros
Divers can anticipate encountering an array of captivating marine life at Sombrero. This includes white tip sharks, expansive schools of fish, and the occasional presence of devil rays during certain seasons. The hawksbill turtle population particularly favors this island, adding to the diverse species that can be observed underwater. Explorers will also encounter canyons, evidence of the island's volcanic nature.
The opportunities for marine encounters at Sombrero are plentiful. Schools of fish of various types can be observed, sometimes in large formations. Devil rays are particularly fond of this site and can be spotted in groups of over 200 individuals during specific times of the year. White tip sharks also leave their mark in the area, often seen resting on the sandy ocean floor near the canyons or sometimes concealed beneath rocks with narrow crevices. A knowledgeable instructor or divemaster can guide you to these hidden spots, allowing you to witness these fascinating creatures. Other notable sightings include moray eels, octopuses, lobsters, and occasionally, magnificent manta rays. The real treat, however, lies in encountering the beloved hawksbill turtle population. And on rare occasions, lucky divers may even have the chance to swim alongside majestic whale sharks.
With a visibility of 12m and a maximum depth of 19m, Sombrero caters to divers of varying skill levels. Whether you're a beginner or an advanced diver, this dive site in Costa Rica's Provincia Guanacaste promises an unforgettable underwater adventure.
Diving Conditions Score for Los Sombréros
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Los Sombréros
Depth
19m
Visibility
12m
Experience Level
Weather Conditions for Los Sombréros
Wave Height
1.12m
Wind Speed
14.7 m/s
Water Temp
29.9°C
Visibility
23.04km
Cloud Cover
82%
Wave Period
11.35s
Air Temperature
29.2°C
Precipitation
0.2 mm
Dive Score Chart for Los Sombréros
Best time to dive: 16:00 with score 8.066366666666667/10. Water conditions: Waves 1.06m, Wind 5.9 m/s.Best night dive time: 3:00 with score 7.758260746460747/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Los Sombréros 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.
Score: 8.1/10
Waves: 1.06m (12.5s), Wind: 5.9 m/s
Score: 7.8/10
Waves: 1.14m, Wind: 2.4 m/s
Seasonal Analysis for Los SombrérosAlpha
Historical patterns and best seasons for diving at Los Sombréros
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 Los Sombréros
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Los Sombréros
Ideal Conditions for Los Sombréros
Water Temp
26.9°C / 80.4°F
March
Visibility
11.1m / 36.4ft
December
Wave Height
1.4m / 4.6ft
November
Wave Period
8.0s
January
Seasonal Insights for Los Sombréros
Los Sombréros shows typical northern hemisphere patterns with April being the warmest month (27.1°C) and November the coldest (21.8°C). The calmest conditions typically occur in November with average wave heights of 1.4m and wave periods of 8.0s. The most comfortable wave conditions are in November 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 November to January, 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 18, 2026