Tsushima tides

Today, Thursday, October 29, 2026 · local time (GMT+9) · Nagasaki, Japan

High tides

11:00 am5.9 ft
10:39 pm5.4 ft

Low tides

4:10 am0.3 ft
4:41 pm1.5 ft

Tide now: 2.5 ft ↓ falling · low 4:41 pm (1.5 ft)
Coefficient: 93 · spring tides
Range today: 5.5 ft

Today there are high tides at 11:00 am (5.9 ft) and 10:39 pm (5.4 ft) and low tides at 4:10 am and 4:41 pm. Tide coefficient 93. Right now the tide is falling toward the low tide at 4:41 pm. In Tsushima the tide is semidiurnal: two high and two low tides a day, of similar height. The next spring tides: from October 27 to 29.

Today's high and low tides

Pick a dateDate

0 · NLLW ▼ 4:10 am0.3 ft ▲ 11:00 am5.9 ft ▼ 4:41 pm1.5 ft ▲ 10:39 pm5.4 ft Now 2:56 pm · 2.5 ft

▼ Low tide 4:10 am 0.3 ft
▲ High tide 11:00 am 5.9 ft · coef. 93
▼ Next low tide 4:41 pm 1.5 ft
▲ High tide 10:39 pm 5.4 ft · coef. 86

↓ Falling The tide is falling. 1 h 45 min to low tide at 4:41 pm.

Tide coefficient 93 for the 11:00 am high tide and 86 for the 10:39 pm high tide. Spring tides. The water rises and falls 5.5 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?

Heights above NLLW. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation.

Tides for the next 7 days

October Print Full 2026 tide table, free

Day	Sun	Tide 1	Tide 2	Tide 3	Tide 4	Coef.	Moon	Major periods	Activity
Today, Thu 29	6:40 am · 5:33 pm	Low tide 4:10 am · 0.3 ft	High tide 11:00 am · 5.9 ft	Low tide 4:41 pm · 1.5 ft	High tide 10:39 pm · 5.4 ft	Coef. 93	88%	Major periods 1:25 am · 1:57 pm	Medium
Fri 30	6:40 am · 5:32 pm	Low tide 4:55 am · 0.7 ft	High tide 11:50 am · 5.4 ft	Low tide 5:28 pm · 1.9 ft	High tide 11:24 pm · 5.0 ft	Coef. 78	80%	Major periods 2:30 am · 3:02 pm	Medium
Sat 31	6:41 am · 5:31 pm	Low tide 5:46 am · 1.1 ft	High tide 12:49 pm · 5.0 ft	Low tide 6:25 pm · 2.3 ft	—	Coef. 61	69%	Major periods 3:34 am · 4:04 pm	Medium
Sun 1	6:42 am · 5:30 pm	High tide 12:24 am · 4.5 ft	Low tide 6:49 am · 1.6 ft	High tide 2:06 pm · 4.6 ft	Low tide 7:46 pm · 2.6 ft	Coef. 53	58%	Major periods 4:34 am · 5:02 pm	Medium
Mon 2	6:43 am · 5:29 pm	High tide 1:59 am · 4.1 ft	Low tide 8:14 am · 2.0 ft	High tide 3:36 pm · 4.5 ft	Low tide 9:38 pm · 2.5 ft	Coef. 41	Last quarter	Major periods 5:30 am · 5:56 pm	Medium
Tue 3	6:44 am · 5:28 pm	High tide 3:46 am · 4.1 ft	Low tide 9:55 am · 2.1 ft	High tide 4:53 pm · 4.6 ft	Low tide 11:02 pm · 2.1 ft	Coef. 46	36%	Major periods 6:21 am · 6:45 pm	Medium
Wed 4	6:45 am · 5:27 pm	High tide 5:05 am · 4.4 ft	Low tide 11:12 am · 1.9 ft	High tide 5:50 pm · 4.8 ft	Low tide 11:53 pm · 1.7 ft	Coef. 57	26%	Major periods 7:08 am · 7:31 pm	Medium

▲ high tide · ▼ low tide · heights above NLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Tide coefficient and range in October

70 · average 21 · neap 107 · spring

The biggest tides of the month came from October 26 to 27 (coefficient 107, 6.1 ft range). The smallest, on October 19 (coefficient 21, 1.4 ft).

What is the tide coefficient?

Type of tide

In Tsushima the tide is semidiurnal: two high and two low tides a day, of similar height. Types of tides

2026 extremes: the highest tide of the year is on August 13 (6.7 ft) and the lowest, on March 21 (-0.6 ft).

Reference levels

Highest astronomical tide (HAT)6.9 ft
Mean higher high water (MHHW)5.0 ft
Mean high water (MHW)4.9 ft
Mean sea level (MSL)3.1 ft
Mean low water (MLW)1.3 ft
Mean lower low water (MLLW)1.0 ft
Lowest astronomical tide (LAT)-0.9 ft

Heights above NLLW.

Questions about the tides in Tsushima

What time is high tide today in Tsushima?

High tide today is at 11:00 am (5.9 ft) and 10:39 pm (5.4 ft). Low tide is at 4:10 am and 4:41 pm.

What time is high tide tomorrow in Tsushima?

On Friday, October 30, high tide at 11:50 am and 11:24 pm and low tide at 4:55 am and 5:28 pm.

What is today's tide coefficient?

93: spring tides. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides.

When are the next spring tides?

From October 27 to 29, after the new or full moon, with the moon near perigee, so they will be bigger than usual.

How many tides a day are there in Tsushima?

The tide is semidiurnal: two high and two low tides a day, of similar height. Each high tide comes about 50 minutes later than the day before.

What are the heights measured from?

From NLLW. That is why a low tide can be negative: that day the water drops below that zero.

Can I use these tides for navigation?

No. They are astronomical predictions for planning fishing and outings; for navigation use official publications and nautical charts.

More about Tsushima today

Tides near Tsushima

Each place with its own tide station; next to it, the time of its first high tide today.

Learn more

Tides from the Izuhara station (Japan Coast Guard), 1.0 mi from Tsushima. Times and heights are its predictions. Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Japan Coast Guard, Hydrographic and Oceanographic Department, https://www1.kaiho.mlit.go.jp/TIDE/gauge/index_eng.php. Edited by Open Waters: constituent names, units and phases converted; tidal datums derived. Licensed Government Standard Terms of Use 2.0 (https://www1.kaiho.mlit.go.jp/copyright.html). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

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