Jeju City tides
Today, Thursday, October 29, 2026 · local time (GMT+9) · Jeju, South Korea- 12:57 pm8.3 ft
- 6:07 am0.2 ft
- 7:10 pm2.7 ft
- Tide now
- 0.5 ft ↑ rising · high 12:57 pm (8.3 ft)
- Coefficient
- 89 · average coefficient
- Range today
- 8.1 ft
Today there is high tide at 12:57 pm (8.3 ft) and low tides at 6:07 am and 7:10 pm. Tide coefficient 89. Right now the tide is rising toward the high tide at 12:57 pm. In Jeju City the tide is mixed: two high and two low tides a day, but of quite different heights. The next spring tides: from October 27 to 29.
Today's high and low tides
- ▼ Low tide 6:07 am 0.2 ft
- ▲ Next high tide 12:57 pm 8.3 ft · coef. 89
- ▼ Low tide 7:10 pm 2.7 ft
↑ Rising The tide is rising. 5 h 57 min to high tide at 12:57 pm.
Tide coefficient 89 for the 12:57 pm high tide. Average coefficient. The water rises and falls 8.1 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 chart datum (CD), the zero of that port's nautical charts. 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
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:50 am · 5:45 pm | Low tide 6:07 am · 0.2 ft | High tide 12:57 pm · 8.3 ft | Low tide 7:10 pm · 2.7 ft | — | Coef. 89 | 88% | Major periods 1:37 am · 2:09 pm | Medium |
| Fri 30 | 6:51 am · 5:44 pm | High tide 12:29 am · 6.1 ft | Low tide 6:50 am · 0.5 ft | High tide 1:50 pm · 7.9 ft | Low tide 8:06 pm · 3.2 ft | Coef. 83 | 80% | Major periods 2:41 am · 3:13 pm | Medium |
| Sat 31 | 6:51 am · 5:43 pm | High tide 1:13 am · 5.7 ft | Low tide 7:40 am · 1.0 ft | High tide 2:53 pm · 7.4 ft | Low tide 9:18 pm · 3.6 ft | Coef. 68 | 69% | Major periods 3:45 am · 4:16 pm | Medium |
| Sun 1 | 6:52 am · 5:42 pm | High tide 2:12 am · 5.2 ft | Low tide 8:43 am · 1.6 ft | High tide 4:10 pm · 6.9 ft | Low tide 10:52 pm · 3.6 ft | Coef. 53 | 58% | Major periods 4:45 am · 5:14 pm | Medium |
| Mon 2 | 6:53 am · 5:41 pm | High tide 3:44 am · 4.9 ft | Low tide 10:09 am · 2.2 ft | High tide 5:34 pm · 6.7 ft | — | Coef. 44 | Last quarter | Major periods 5:41 am · 6:07 pm | Medium |
| Tue 3 | 6:54 am · 5:40 pm | Low tide 12:22 am · 3.3 ft | High tide 5:42 am · 5.0 ft | Low tide 11:49 am · 2.4 ft | High tide 6:46 pm · 6.7 ft | Coef. 50 | 36% | Major periods 6:32 am · 6:56 pm | Medium |
| Wed 4 | 6:55 am · 5:40 pm | Low tide 1:23 am · 2.8 ft | High tide 7:12 am · 5.6 ft | Low tide 1:12 pm · 2.4 ft | High tide 7:41 pm · 6.7 ft | Coef. 61 | 26% | Major periods 7:19 am · 7:42 pm | Medium |
▲ high tide · ▼ low tide · heights above chart datum (CD). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 27 (coefficient 104, 8.3 ft range). The smallest, on October 19 (coefficient 24, 3.1 ft).
Type of tide
In Jeju City the tide is mixed: two high and two low tides a day, but of quite different heights. Types of tides
2026 extremes: the highest tide of the year is on December 25 (8.9 ft) and the lowest, on December 25 (-0.3 ft).
Reference levels
- Highest astronomical tide (HAT)9.0 ft
- Mean higher high water (MHHW)7.2 ft
- Mean high water (MHW)6.7 ft
- Mean sea level (MSL)4.4 ft
- Mean low water (MLW)2.0 ft
- Mean lower low water (MLLW)1.5 ft
- Lowest astronomical tide (LAT)-0.3 ft
Heights above chart datum (CD), the zero of that port's nautical charts.
Questions about the tides in Jeju City
What time is high tide today in Jeju City?
High tide today is at 12:57 pm (8.3 ft). Low tide is at 6:07 am and 7:10 pm.
What time is high tide tomorrow in Jeju City?
On Friday, October 30, high tide at 12:29 am and 1:50 pm and low tide at 6:50 am and 8:06 pm.
What is today's tide coefficient?
89: average coefficient. 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 Jeju City?
The tide is mixed: two high and two low tides a day, but of quite different heights. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From chart datum (CD), the zero of that port's nautical charts. 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 Jeju City today
Tides near Jeju City
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Tides from the Jeju station (KHOA), 1.7 mi from Jeju City. Times and heights are its predictions. Station data attribution: Korea Hydrographic and Oceanographic Agency (해양수산부 국립해양조사원), harmonic constants of the TideBED reference ports (예측조위(타이드베드) 기준항 조화상수, 2025-08-12), station Jeju (제주, DT_0004), https://www.data.go.kr/data/15145395/fileData.do. Free, no restrictions on use (이용허락범위 제한 없음). Modified by TidePlanet: M2, S2, K1 and O1 from KHOA, the other constituents of those bands inferred from them.