Sashiki tides
Today, Thursday, October 29, 2026 · local time (GMT+9) · Kumamoto, Japan- 10:51 am11.5 ft
- 10:17 pm10.9 ft
- 4:26 am0.2 ft
- 4:47 pm4.2 ft
- Tide now
- 10.7 ft ↑ rising · high 10:51 am (11.5 ft)
- Coefficient
- 88 · average coefficient
- Range today
- 11.3 ft
Today there are high tides at 10:51 am (11.5 ft) and 10:17 pm (10.9 ft) and low tides at 4:26 am and 4:47 pm. Tide coefficient 88. Right now the tide is rising toward the high tide at 10:51 am. In Sashiki 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 4:26 am 0.2 ft
- ▲ Next high tide 10:51 am 11.5 ft · coef. 88
- ▼ Low tide 4:47 pm 4.2 ft
- ▲ High tide 10:17 pm 10.9 ft · coef. 83
↑ Rising The tide is rising. 1 h 6 min to high tide at 10:51 am.
Tide coefficient 88 for the 10:51 am high tide and 83 for the 10:17 pm high tide. Average coefficient. The water rises and falls 11.3 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 | 6:32 am · 5:31 pm | Low tide 4:26 am · 0.2 ft | High tide 10:51 am · 11.5 ft | Low tide 4:47 pm · 4.2 ft | High tide 10:17 pm · 10.9 ft | Coef. 88 | 88% | Major periods 1:20 am · 1:52 pm | Medium |
| Fri 30 | 6:33 am · 5:30 pm | Low tide 5:06 am · 0.6 ft | High tide 11:35 am · 10.8 ft | Low tide 5:27 pm · 4.9 ft | High tide 10:51 pm · 10.3 ft | Coef. 77 | 80% | Major periods 2:25 am · 2:57 pm | Medium |
| Sat 31 | 6:34 am · 5:29 pm | Low tide 5:50 am · 1.3 ft | High tide 12:26 pm · 10.1 ft | Low tide 6:14 pm · 5.5 ft | High tide 11:33 pm · 9.5 ft | Coef. 65 | 69% | Major periods 3:28 am · 3:59 pm | Medium |
| Sun 1 | 6:35 am · 5:28 pm | Low tide 6:42 am · 2.1 ft | High tide 1:30 pm · 9.4 ft | Low tide 7:21 pm · 5.9 ft | — | Coef. 52 | 58% | Major periods 4:29 am · 4:57 pm | Medium |
| Mon 2 | 6:35 am · 5:27 pm | High tide 12:39 am · 8.7 ft | Low tide 7:52 am · 3.0 ft | High tide 2:54 pm · 9.1 ft | Low tide 9:00 pm · 5.8 ft | Coef. 47 | Last quarter | Major periods 5:25 am · 5:51 pm | Medium |
| Tue 3 | 6:36 am · 5:26 pm | High tide 2:33 am · 8.2 ft | Low tide 9:20 am · 3.4 ft | High tide 4:16 pm · 9.2 ft | Low tide 10:35 pm · 4.9 ft | Coef. 46 | 36% | Major periods 6:16 am · 6:40 pm | Medium |
| Wed 4 | 6:37 am · 5:26 pm | High tide 4:24 am · 8.5 ft | Low tide 10:44 am · 3.4 ft | High tide 5:17 pm · 9.7 ft | Low tide 11:38 pm · 3.8 ft | Coef. 58 | 26% | Major periods 7:03 am · 7:26 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 100, 11.8 ft range). The smallest, on October 19 (coefficient 22, 3.5 ft).
Type of tide
In Sashiki 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 August 13 (12.2 ft) and the lowest, on December 26 (-1.1 ft).
Reference levels
- Highest astronomical tide (HAT)12.8 ft
- Mean higher high water (MHHW)10.2 ft
- Mean high water (MHW)10.0 ft
- Mean sea level (MSL)6.4 ft
- Mean low water (MLW)2.8 ft
- Mean lower low water (MLLW)1.9 ft
- Lowest astronomical tide (LAT)-1.5 ft
Heights above chart datum (CD), the zero of that port's nautical charts.
Questions about the tides in Sashiki
What time is high tide today in Sashiki?
High tide today is at 10:51 am (11.5 ft) and 10:17 pm (10.9 ft). Low tide is at 4:26 am and 4:47 pm.
What time is high tide tomorrow in Sashiki?
On Friday, October 30, high tide at 11:35 am and 10:51 pm and low tide at 5:06 am and 5:27 pm.
What is today's tide coefficient?
88: 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 Sashiki?
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 Sashiki today
Tides near Sashiki
- Honmachi ▲ 10:52 am
- Ōyanomachi-noboritate ▲ 10:57 am
- Amakusa ▲ 10:50 am
- Matsubase ▲ 11:01 am
- Akune ▲ 9:48 am
- Minamishimabara ▲ 11:02 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Sashiki has no station of its own, so we use the tide at Minamata (JMA), 11 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger. Station data attribution: Source: Japan Meteorological Agency website (出典：気象庁ホームページ), tide table (潮位表) for Minamata (水俣), https://www.data.jma.go.jp/kaiyou/db/tide/suisan/suisan.php?stn=O7. Public Data License (Version 1.0) (https://www.digital.go.jp/resources/open_data/public_data_license_v1.0), compatible with CC BY 4.0. Modified by TidePlanet (気象庁「潮位表」を加工して作成): harmonic constants fitted from the hourly prediction of 2025–2026; not an official JMA product.