Osaka to Wakayama Shimotsu Ko Sea Distance Calculator

Calculate the exact nautical distance from Osaka, Japan to Wakayama Shimotsu Ko, Japan. Plan your maritime journey with our professional route calculator.

Distance
39 nm
nautical miles
Under Sail
8 hours
at 5 knots
Under Power
4 hours
at 10 knots
Best Time
Varies by area
Typical Sailing Season

Distance follows a sea-lane route. Sailing times are estimates at fixed cruising speeds and vary with vessel, weather, and currents.

Interactive Route Map

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Distance: 39 nautical miles
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This map shows the direct sea route from Osaka to Wakayama Shimotsu Ko. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a moderately indirect coastal passage: the navigable route runs 12% longer than the 35 nm direct line, its heading turning from west-southwest to south. It spans two maritime regions.

Sea distance
39 nm (72.1 km)
Direct line
34.8 nm12% longer
Great-circle bearing
212° (south-southwest)
Geographic extent
0.5° × 0.4°
Crossing
Domestic · Cross-region
From
Osaka (Japan) 34.6937, 135.5023
To
Wakayama Shimotsu Ko (Japan) 34.2000, 135.1333
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn8 hours
8 kn5 hours
10 kn4 hours
12 kn3 hours

Distance follows a sea-lane route generated from marine traffic lanes; passage times are computed at fixed cruising speeds.

Read the methodology — How we calculate sea distances

Last reviewed 2026-06-17

About Osaka to Wakayama Shimotsu Ko Route

The maritime route from Osaka to Wakayama-Shimotsu Ko is a short coastal domestic passage connecting two major commercial ports in the Pacific region. Mariners on this leg typically prepare for the western Pacific typhoon season July through October.

This route runs spanning two distinct maritime regions, connecting Osaka in Japan with Wakayama-Shimotsu Ko in Japan.

Navigation Tips

  • •On this short coastal domestic crossing in the Pacific region, prepare for the western Pacific typhoon season July through October, particularly in peak season.
  • •For a short coastal route, plan fuel and provisioning around the Pacific region — calculate consumption with our tool.
  • •Verify port-entry requirements at both ends of this domestic route spanning two distinct maritime regions before you depart.
  • •Check safety gear suited to Pacific conditions before a short coastal passage — life rafts, EPIRB, and current charts.
  • •Carry passports, vessel documents, and crew lists matched to this domestic route spanning two distinct maritime regions.

Frequently Asked Questions

How far is it from Osaka to Wakayama Shimotsu Ko by sea?

The sea distance from Osaka to Wakayama Shimotsu Ko is approximately 39 nautical miles — a short coastal passage in Pacific.

How long does it take to sail from Osaka to Wakayama Shimotsu Ko?

A short coastal spanning two distinct maritime regions crossing of 39 nautical miles typically takes 4 hours – 8 hours, depending on vessel and weather.

What's the best time to sail from Osaka to Wakayama Shimotsu Ko?

Conditions on this route vary by area and season, so there is no single best time that applies along its whole length. Always check current weather forecasts and sea conditions before departure.

Plan Your Perfect Maritime Journey

Use our advanced calculator above to customize your route, add waypoints, calculate fuel costs, and share your journey plan with crew members.

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