What is the Ocean Viewing Index (OVI) for Hakkeijima Sea Paradise?

OVI is a 0-100 composite score combining sea color, water clarity, visibility, sea conditions, sunlight and water quality to help you decide if the sea is worth seeing today.

Hakkeijima Sea Paradise

Kanagawa, JapanAsia/Tokyo

Ocean View Index

75Good

Next tide

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Sunrise / Sunset

20:32 – 09:12

Local time

02:21

Hakkeijima Sea Paradise is Yokohama's marine theme island, where an impressive aquarium meets scenic amusement rides.

Ocean Viewing Index

Updated · Sep 8, 2026 17:21

Reference time: local noon · 11:52 (Asia/Tokyo)

Estimated

Good

Good conditions. Worth a visit.

Sub-Index Breakdown

Six dimensions feed the overall Ocean Viewing Index.

Sea Color
Clear blue-green · hue
77.5
Clarity
Very clear (below 1.5 NTU) · NTU
100
Visibility
Under 8 m · m
31.5
Sea State
Calm, glassy (0-1) · Beaufort
81.6
Lighting
Golden hour, optimal · lux
100
Water Quality
index
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Weather Forecast

7-day marine weather forecast from Open-Meteo model.

TodaySep 8

Rain

30°26°

3.3 m/s

11.5mm

WedSep 9

Heavy Rain

30°20°

4.7 m/s

36.2mm

ThuSep 10

Heavy Rain

24°20°

3.1 m/s

63.1mm

FriSep 11

Rain

23°20°

3.0 m/s

30.5mm

SatSep 12

Overcast

26°22°

2.8 m/s

SunSep 13

Light Rain

28°25°

2.4 m/s

0.6mm

MonSep 14

Rain

29°21°

2.7 m/s

19.0mm

Visibility: 11 km·Cloud: 40%

48-Hour Hourly Forecast

Hour-by-hour marine weather for the next 48 hours.

Now26°0—

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7-Day OVI Trend

Forecast ocean viewing conditions for the coming week.

Best on Sat: Viewing conditions are Excellent; aim for the golden hour just after sunrise or before sunset. Great for snorkeling and photography.

High & Low Tides Today

Times and heights of today's high and low water.

Spring TideCoefficient: 116.4 / 120Higher coefficient means larger tide range; 120 is the largest spring, 20 the smallest neap.

Time	Type	Height
No tide extremes recorded today.

48-Hour OVI Trend

Hour-by-hour ocean viewing outlook for the next 48 hours, dampened by rainfall.

Today's Tide Summary

A quick look at the day's high and low water.

Nearby Beaches

Other beaches closest to Hakkeijima Sea Paradise.

9.2 km away

Yuigahama Beach

Kanagawa, Japan

15 km away

Katase Beach

Kanagawa, Japan

35 km away

Odaiba Beach

Tokyo, Japan

359 km away

Matsushima Bay

Miyagi, Japan

Frequently asked questions

What is the Ocean Viewing Index (OVI) for Hakkeijima Sea Paradise?: OVI is a 0-100 composite score combining sea color, water clarity, visibility, sea conditions, sunlight and water quality to help you decide if the sea is worth seeing today.

Essential Information

Coordinates: 35.3397°, 139.6403°
Timezone: Asia/Tokyo
Region & Country: Kanagawa, Japan

Data sources

Tides: UHSLC / FES2022b · Weather: NOAA GFS · Sea color: NASA MODIS/VIIRS