What is the Ocean Viewing Index (OVI) for Otaru Coast?

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.

When is the best time to visit Otaru Coast for sea views?

Start with the current and 7-day OVI forecast for Otaru Coast, then choose a daylight period that also fits your plan. If you want tide pools, exposed shore, or a tide-dependent walk, check the local high and low tide times as well.

Should I use tide times or OVI for a visit to Otaru Coast?

Use tide times when your visit depends on water level, such as a sandbar, tide pool, or exposed rocks. Use OVI to compare likely sightseeing conditions including sea appearance, visibility, sea state, and lighting. For a coastal trip, read both together.

Otaru Coast Tides & Ocean Viewing Index

Hokkaido, JapanAsia/Tokyo

Ocean View Index

90Excellent

Next tide

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Sunrise / Sunset

20:58 – 07:41

Local time

07:19

Otaru Canal and harbor in Hokkaido, a romantic port town where craftsmen hand-blow fine glassware.

Ocean Viewing Index

Updated · Oct 23, 2026 21:54

Reference time: local noon · 11:20 (Asia/Tokyo)

Estimated

Excellent

Excellent viewing conditions. Highly recommended!

Sub-Index Breakdown

Six dimensions feed the overall Ocean Viewing Index.

Sea Color
Vivid turquoise / azure · hue
82.9
Clarity
Very clear (below 1.5 NTU) · NTU
100
Visibility
15+ m horizontal · m
100
Sea State
Calm, glassy (0-1) · Beaufort
86.1
Lighting
Golden hour, optimal · lux
90.2
Water Quality
index
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Weather Forecast

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

TodayOct 23

Overcast

14°8°

4.5 m/s

SatOct 24

Light Rain

17°12°

4.2 m/s

0.6mm

SunOct 25

Overcast

14°8°

5.0 m/s

MonOct 26

Light Rain

11°7°

2.6 m/s

0.1mm

TueOct 27

Rain

13°3°

5.0 m/s

13.2mm

WedOct 28

Light Rain

6°3°

7.7 m/s

3.3mm

ThuOct 29

Light Rain

14°6°

3.6 m/s

2.4mm

Visibility: 47 km·Cloud: 54%

48-Hour Hourly Forecast

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

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7-Day OVI Trend

Forecast ocean viewing conditions for the coming week.

Best today: 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.

Mixed TideCoefficient: 77.6 / 120Higher coefficient means larger tide range; 120 is the largest spring, 20 the smallest neap.

Time	Type	Height
No tide extremes recorded today.

Fishing & Surf Forecast

Solunar feeding times and today's surf rating.

70Very Good18Very PoorView full forecast

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.

Best Months to Visit

Average Ocean Viewing Index by month over the past year.

Jan

Feb

Mar

Apr

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Jun

Jul

Aug

Sep

Oct

Nov

Dec

Based on historical climatology (Pitarch 2021)

Nearby Beaches

Other beaches closest to Otaru Coast.

536 km away

Matsushima Bay

Miyagi, Japan

847 km away

Odaiba Beach

Tokyo, Japan

881 km away

Hakkeijima Sea Paradise

Kanagawa, Japan

885 km away

Yuigahama Beach

Kanagawa, Japan

Frequently asked questions

What is the Ocean Viewing Index (OVI) for Otaru Coast?: 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.
When is the best time to visit Otaru Coast for sea views?: Start with the current and 7-day OVI forecast for Otaru Coast, then choose a daylight period that also fits your plan. If you want tide pools, exposed shore, or a tide-dependent walk, check the local high and low tide times as well.
Should I use tide times or OVI for a visit to Otaru Coast?: Use tide times when your visit depends on water level, such as a sandbar, tide pool, or exposed rocks. Use OVI to compare likely sightseeing conditions including sea appearance, visibility, sea state, and lighting. For a coastal trip, read both together.

Essential Information

Coordinates: 43.1907°, 140.9947°
Timezone: Asia/Tokyo
Region & Country: Hokkaido, Japan

Data sources

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