Ichinomiya tides
Today, Thursday, October 29, 2026 · local time (GMT+9) · Chiba, Japan- 6:50 am4.9 ft
- 5:24 pm5.4 ft
- 11:54 am3.1 ft
- Tide now
- 4.2 ft ↓ falling · low 11:54 am (3.1 ft)
- Coefficient
- 97 · spring tides
- Range today
- 2.3 ft
Today there are high tides at 6:50 am (4.9 ft) and 5:24 pm (5.4 ft) and low tide at 11:54 am. Tide coefficient 97. Right now the tide is falling toward the low tide at 11:54 am. In Ichinomiya 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
- ▲ High tide 6:50 am 4.9 ft · coef. 97
- ▼ Next low tide 11:54 am 3.1 ft
- ▲ High tide 5:24 pm 5.4 ft · coef. 92
↓ Falling The tide is falling. 2 h 58 min to low tide at 11:54 am.
Tide coefficient 97 for the 6:50 am high tide and 92 for the 5:24 pm high tide. Spring tides. The water rises and falls 2.3 ft between the highest high and the lowest low: an average 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
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 5:57 am · 4:47 pm | High tide 6:50 am · 4.9 ft | Low tide 11:54 am · 3.1 ft | High tide 5:24 pm · 5.4 ft | — | Coef. 97 | 88% | Major periods 12:39 am · 1:11 pm | Medium |
| Fri 30 | 5:58 am · 4:46 pm | Low tide 12:39 am · 0.1 ft | High tide 7:44 am · 4.6 ft | Low tide 12:28 pm · 3.3 ft | High tide 5:58 pm · 5.2 ft | Coef. 83 | 80% | Major periods 1:43 am · 2:16 pm | Medium |
| Sat 31 | 5:59 am · 4:45 pm | Low tide 1:30 am · 0.4 ft | High tide 8:46 am · 4.3 ft | Low tide 1:06 pm · 3.5 ft | High tide 6:36 pm · 4.9 ft | Coef. 67 | 69% | Major periods 2:47 am · 3:18 pm | Medium |
| Sun 1 | 6:00 am · 4:44 pm | Low tide 2:28 am · 0.8 ft | High tide 10:04 am · 4.1 ft | Low tide 2:06 pm · 3.7 ft | High tide 7:28 pm · 4.4 ft | Coef. 50 | 58% | Major periods 3:48 am · 4:16 pm | Medium |
| Mon 2 | 6:01 am · 4:43 pm | Low tide 3:40 am · 1.3 ft | High tide 11:37 am · 4.0 ft | Low tide 4:25 pm · 3.6 ft | High tide 9:11 pm · 4.0 ft | Coef. 39 | Last quarter | Major periods 4:44 am · 5:10 pm | Medium |
| Tue 3 | 6:01 am · 4:42 pm | Low tide 5:01 am · 1.6 ft | High tide 12:43 pm · 4.1 ft | Low tide 6:37 pm · 3.1 ft | High tide 11:41 pm · 3.9 ft | Coef. 44 | 36% | Major periods 5:35 am · 5:59 pm | Medium |
| Wed 4 | 6:02 am · 4:41 pm | Low tide 6:18 am · 1.9 ft | High tide 1:23 pm · 4.3 ft | Low tide 7:36 pm · 2.5 ft | — | Coef. 51 | 26% | Major periods 6:22 am · 6:45 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
The biggest tides of the month came from October 26 to 27 (coefficient 109, 5.3 ft range). The smallest, on October 19 (coefficient 24, 2.3 ft).
Type of tide
In Ichinomiya 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 October 28 (5.4 ft) and the lowest, on May 18 (-0.6 ft).
Reference levels
- Highest astronomical tide (HAT)5.7 ft
- Mean higher high water (MHHW)4.6 ft
- Mean high water (MHW)4.4 ft
- Mean sea level (MSL)3.0 ft
- Mean low water (MLW)1.8 ft
- Mean lower low water (MLLW)0.8 ft
- Lowest astronomical tide (LAT)-0.6 ft
Heights above NLLW.
Questions about the tides in Ichinomiya
What time is high tide today in Ichinomiya?
High tide today is at 6:50 am (4.9 ft) and 5:24 pm (5.4 ft). Low tide is at 11:54 am.
What time is high tide tomorrow in Ichinomiya?
On Friday, October 30, high tide at 7:44 am and 5:58 pm and low tide at 12:39 am and 12:28 pm.
What is today's tide coefficient?
97: 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 Ichinomiya?
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 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 Ichinomiya today
Tides near Ichinomiya
- Ushigome ▲ 7:09 am
- Ichihara ▲ 7:11 am
- Sodegaura ▲ 7:08 am
- Asahi ▲ 6:38 am
- Futtsu ▲ 7:13 am
- Maihama ▲ 7:17 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Ichinomiya has no station of its own, so we use the tide at Katsuura (TICON-4), 18 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: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data