Jadrina
The Jadrina divesite, also known as Nikolai Grotto, is a fascinating diving spot located south of Rabac on the east coast of Istria, Croatia. This popular spot offers divers a chance to explore a huge cave at a depth of 24 meters, situated at the base of a stunning wall.
Divers will be treated to a vibrant underwater landscape with alternating yellow and red gorgonian fans, shimmering soft corals, crustacean anemones, and abundant feather stars. The colorful marine life adds to the allure of this dive site, making it a must-visit for divers of all experience levels.
With a maximum depth of 23 meters and visibility reaching up to 14 meters, Jadrina provides ample opportunities for underwater exploration and photography. Whether you're a beginner, advanced diver, or an expert, this site caters to all skill levels.
Located in close proximity to Drenje, Općina Raša, Istria County, Croatia, Jadrina is easily accessible for divers seeking an unforgettable underwater adventure in Croatia.
Divers will be treated to a vibrant underwater landscape with alternating yellow and red gorgonian fans, shimmering soft corals, crustacean anemones, and abundant feather stars. The colorful marine life adds to the allure of this dive site, making it a must-visit for divers of all experience levels.
With a maximum depth of 23 meters and visibility reaching up to 14 meters, Jadrina provides ample opportunities for underwater exploration and photography. Whether you're a beginner, advanced diver, or an expert, this site caters to all skill levels.
Located in close proximity to Drenje, Općina Raša, Istria County, Croatia, Jadrina is easily accessible for divers seeking an unforgettable underwater adventure in Croatia.
Diving Conditions Score for Jadrina
6.1
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Jadrina
Depth
23m
Visibility
14m
Experience Level
beginner
advanced
expert
Weather Conditions for Jadrina
Wave Height
1m
Wind Speed
10 m/s
Water Temp
18°C
Visibility
15km
Cloud Cover
57.5%
Wave Period
8s
Air Temperature
20°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Jadrina
Alpha
Dive Score Chart for Jadrina
Best time to dive: 6:00 with score 7.113333333333333/10. Water conditions: Waves 1m, Wind 10 m/s.Best night dive time: 0:00 with score 6.613333333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Jadrina: 06:00
Sunset at Jadrina: 18:00
Optimal diving conditions at Jadrina 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: 7.1/10
Waves: 1m (8s), Wind: 10 m/s
Best Night
0:00Score: 6.6/10
Waves: 1m, Wind: 10 m/s
Seasonal Analysis for JadrinaAlpha
Historical patterns and best seasons for diving at Jadrina
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 Jadrina
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 Jadrina
January
Score: 8.9
February
Score: 8.7
December
Score: 8.4
Ideal Conditions for Jadrina
Water Temp
26.6°C / 79.9°F
July
Visibility
16.6m / 54.5ft
January
Wave Height
0.6m / 2.0ft
January
Wave Period
8.0s
January
Seasonal Insights for Jadrina
Jadrina shows typical northern hemisphere patterns with July being the warmest month (26.6°C) and January the coldest (2.9°C). The calmest conditions typically occur in January with average wave heights of 0.6m 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.
50 Dive sites near Jadrina in
Maman
Uvala Slana
Cavern Bay
Timos Caves
Kamenjak
Hrid Kamenjak
Hrid Piramida
Črni Mol
Plovanov Stol
Plic Tenki
Kačjak
Punta Šilo
Rt. Družinin
Vanjsko Silo
Tunnel von Prvic
Leuchturm
Peltastis (Wreck)
Sika Tanki
Sveti Marak
Silent Beach
100 Steps Vrbnik
Vrbnik Cave
Canyon
Zuckerhut, Grgur
Secret Beach
Aquarium Grgur
Prst
Rt Kosaca
Green Lantern
Maman Right
Velo Kolo
Kron Diving
Ćuf
Malo Kolo
KRK - CAMPING ’KRK’
Gonar
Lun, Pag
Kalifront
Nanos, wreck
Toni House Reef
PLAVNIK - II wall
Malibu Bay
Hausriff Cres
House Reef Biser (Mošćenička Draga)
Mali Cutin
Uvala Zakenj
Veli Cutin
3 Zinnen
Sveti Blaz
Lina (Wreck)
Got feedback?
Help us improve this dive site by giving us feedback.