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Arari

This dive site showcases remarkable topography, including the captivating West Root and the Horse Mackerel Root. Its convenient proximity to the harbor, just a 5-minute boat ride away, makes it accessible even for those who may not be comfortable with longer rides. One of the most notable attractions here is the abundance of stingrays, especially during early summer when encounters with these majestic creatures can reach near 100% frequency. Witnessing groups of stingrays rather than isolated individuals adds to the allure. As autumn arrives, visibility improves, unveiling an even more captivating dynamic topography. Kampachi and sunfish gracefully circle around, while the offshore roots become home to the famous "school of large, motionless snappers." Divers who frequent this site often express their astonishment, unable to believe they are exploring the depths of the beautiful Izu region.

This dive site offers an array of photography opportunities, catering to both macro and wide-angle enthusiasts. The walls are adorned with seahorses, lionfish, and other intricate small fish, perfect for capturing stunning shots. Notably, the early summer brings a truly remarkable and widely renowned sight: flying rays. As autumn takes hold, massive schools of fish create an awe-inspiring spectacle akin to a living wall. Regardless of the season, this site never fails to exhibit its unique allure, ensuring that each dive yields new discoveries and exhilarating experiences.

Enjoy optimal visibility of 10m and explore the depths up to a maximum of 21m. Divers of all levels, from beginners to advanced and expert, can indulge in the wonders of this site. Located in Arari, Nishiizu, Kamo County, Shizuoka Prefecture, Japan, this dive site offers a captivating underwater adventure in the beautiful Japanese waters.

Diving Conditions Score for Arari

5.8
Average

Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Arari

Depth

21m

Visibility

10m

Experience Level

beginner
advanced
expert

Weather Conditions for Arari

Wave Height

2.22m

Wind Speed

18.3 m/s

Water Temp

23.1°C

Visibility

660m

Cloud Cover

88%

Wave Period

6.3s

Air Temperature

24.3°C

Precipitation

0.4 mm

Detailed 7-Day Diving Forecast for Arari
Alpha

Dive Score Chart for Arari

Best time to dive: 15:00 with score 5.7325333333333335/10. Water conditions: Waves 2.04m, Wind 6.7 m/s.Best night dive time: 23:00 with score 6.320933333333333/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Arari: 06:00
Sunset at Arari: 18:00

Optimal diving conditions at Arari 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
23:00

Score: 6.3/10
Waves: 1.34m (6.4s), Wind: 5.4 m/s

🌞
Safest Overall
15:00

Score: 5.7/10
Waves: 2.04m (6.1s), Wind: 6.7 m/s

🌞
Best Day
15:00

Score: 5.7/10
Waves: 2.04m, Wind: 6.7 m/s

Seasonal Analysis for Arari
Alpha

Historical patterns and best seasons for diving at Arari

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 Arari

Winter

Avg. Score: 8.6/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for Arari

January
Score: 8.9
February
Score: 8.4
December
Score: 8.4

Ideal Conditions for Arari

Water Temp

Thermometer Emoji

26.2°C / 79.2°F

August

Visibility

Telescope Emoji

14.7m / 48.2ft

November

Wave Height

Wave Emoji

1.2m / 3.9ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Arari

Arari shows typical northern hemisphere patterns with August being the warmest month (26.2°C) and January the coldest (2.9°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). February 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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 21, 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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