A small coastal pilot

울도 · Moon & Sea

Station details

SO_0563 · 37.03555°N, 125.995°E

AS THE MOON CHANGES, THE SEA RESPONDS

One coast. A changing tidal range.

Compare seven days of lunar phases with the difference between this station’s highest and lowest predicted tide heights.

Daily highest–lowest predicted height difference609cm

Highest predicted height: 678 cm
Lowest predicted height: 69 cm

09/23Waxing gibbous396 cm 09/24Waxing gibbous487 cm 09/25Waxing gibbous560 cm 09/26Full Moon609 cm 09/27Full Moon646 cm 09/28Waning gibbous681 cm 09/29Waning gibbous694 cm

Moon phase: noon KST · Tide heights: provider predictions

Bars compare daily height differences at this station within this seven-day window. They are not a continuous water-level curve or current speed. The scale changes with the window.

Refresh seven days

How are the Moon and sea connected?

The Moon and Sun’s tidal effects reinforce each other around new and full moons, generally producing larger tidal ranges. Ranges tend to be smaller around quarter moons.

Coast shape, water depth and local timing also matter. Lunar phase alone does not establish this station’s spring or neap tide dates.

NOAA · Spring and neap tides ↗ · Why local timing differs ↗

Today

Choose date

Next tide event

High tide 16:24

Sat, 26 September 2026 · 674 cm

A day of tides, at a glance

Provider prediction

● High tide○ Low tideKST · 24h

High tide04:10678 cm
Low tide10:2695 cm
High tideNEXT16:24674 cm
Low tide22:3869 cm

Markers show predicted high/low tide times, not water levels or currents between events.

View detailed table

울도 · Sat, 26 September 2026 · Tide timetable
Local time	Event	Predicted height
04:10	High tide	678 cm
10:26	Low tide	95 cm
16:24	High tide	674 cm
22:38	Low tide	69 cm

Data and limitations

Vertical datum: unverified. Heights are not water depth or a clearance measurement.

High and low tides only. No continuous water-level curve, measured current level, or tidal-current estimate is inferred.

Retrieved: Sat, 26 September 2026 15:41
Provider production time: not supplied

Refresh data ↻

BEFORE THE COAST

Before you head to the coast

A tide timetable is not a sea-condition forecast. Check the sea area, forecast time and on-site restrictions separately.

Marine wind: Data unavailable
Wave height: Data unavailable
Water current: Data unavailable
Weather warnings: Data unavailable

Current observations: wind at the port gauge, waves and currents at a separate offshore buoy. They may differ from your beach. Missing or outdated readings are withheld.

Sources · KHOA wind · KHOA buoy · KMA warnings

KMA marine forecast (Korean)KMA weather warnings (Korean)

Forecast and on-site guidance

Official pages open separately. Select your sea area and check the issue time and forecast period. This page does not transfer the port or selected date to those sites.

Local access restrictions are not checked here. Confirm with the site operator and follow posted restrictions.

Not for navigation, entering the water, or deciding when to cross tidal flats. No entry, exit or fishing-success prediction is provided.

Reading this timetable

High and low tide: The high and low points of predicted water level at this port. They do not establish when the current stops.
Tide and current: Tides describe water-level changes; currents describe horizontal flow. This timetable does not calculate current speed.
Predicted height and depth: Tidal height needs a stated reference level. The reference level is unverified here; do not read centimetres as water depth or clearance.

A prediction for a port does not apply unchanged to every nearby beach or tidal flat.

Tides and currents: NOAA (English) ↗

Tide source: KHOA high/low prediction API (Korean) ↗