Useless Loop tides
Today, Thursday, October 29, 2026 · local time (GMT+8) · West Australia, Australia- 1:23 am4.2 ft
- 3:49 pm2.4 ft
- 9:46 am0.2 ft
- 6:32 pm2.3 ft
- Tide now
- 0.6 ft ↓ falling · low 9:46 am (0.2 ft)
- Coefficient
- 103 · big spring tides
- Range today
- 4.0 ft
Today there are high tides at 1:23 am (4.2 ft) and 3:49 pm (2.4 ft) and low tides at 9:46 am and 6:32 pm. Tide coefficient 103. Right now the tide is falling toward the low tide at 9:46 am. In Useless Loop 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 1:23 am 4.2 ft · coef. 103
- ▼ Next low tide 9:46 am 0.2 ft
- ▲ High tide 3:49 pm 2.4 ft · coef. 100
- ▼ Low tide 6:32 pm 2.3 ft
↓ Falling The tide is falling. 1 h 57 min to low tide at 9:46 am.
Tide coefficient 103 for the 1:23 am high tide and 100 for the 3:49 pm high tide. Big spring tides. The water rises and falls 4.0 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: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. 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 | 5:40 am · 6:41 pm | High tide 1:23 am · 4.2 ft | Low tide 9:46 am · 0.2 ft | High tide 3:49 pm · 2.4 ft | Low tide 6:32 pm · 2.3 ft | Coef. 103 | 88% | Major periods 1:31 am · 2:04 pm | Medium |
| Fri 30 | 5:39 am · 6:42 pm | High tide 2:06 am · 4.2 ft | Low tide 10:31 am · 0.3 ft | — | — | Coef. 96 | 79% | Major periods 2:36 am · 3:08 pm | Medium |
| Sat 31 | 5:38 am · 6:42 pm | High tide 2:52 am · 4.1 ft | Low tide 11:16 am · 0.5 ft | — | — | Coef. 85 | 69% | Major periods 3:40 am · 4:10 pm | Medium |
| Sun 1 | 5:37 am · 6:43 pm | High tide 3:42 am · 3.8 ft | Low tide 12:02 pm · 0.8 ft | — | — | Coef. 70 | 58% | Major periods 4:40 am · 5:08 pm | Medium |
| Mon 2 | 5:37 am · 6:44 pm | High tide 4:36 am · 3.4 ft | Low tide 12:48 pm · 1.1 ft | — | — | Coef. 55 | Last quarter | Major periods 5:35 am · 6:01 pm | Medium |
| Tue 3 | 5:36 am · 6:44 pm | High tide 5:39 am · 3.0 ft | Low tide 1:39 pm · 1.4 ft | High tide 9:22 pm · 2.5 ft | — | Coef. 43 | 36% | Major periods 6:26 am · 6:50 pm | Medium |
| Wed 4 | 5:35 am · 6:45 pm | Low tide 2:13 am · 2.2 ft | High tide 6:57 am · 2.6 ft | Low tide 2:36 pm · 1.6 ft | High tide 9:32 pm · 2.8 ft | Coef. 42 | 26% | Major periods 7:13 am · 7:36 pm | Low |
▲ high tide · ▼ low tide · heights above chart datum (LAT). 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 27 to 29 (coefficient 104, 4.0 ft range). The smallest, on October 20 (coefficient 28, 1.4 ft).
Type of tide
In Useless Loop 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 April 21 (5.6 ft) and the lowest, on November 26 (0.1 ft).
Reference levels
- Highest astronomical tide (HAT)5.7 ft
- Mean higher high water (MHHW)4.0 ft
- Mean high water (MHW)3.5 ft
- Mean sea level (MSL)2.7 ft
- Mean low water (MLW)1.8 ft
- Mean lower low water (MLLW)1.4 ft
- Lowest astronomical tide (LAT)0.0 ft
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe.
Questions about the tides in Useless Loop
What time is high tide today in Useless Loop?
High tide today is at 1:23 am (4.2 ft) and 3:49 pm (2.4 ft). Low tide is at 9:46 am and 6:32 pm.
What time is high tide tomorrow in Useless Loop?
On Friday, October 30, high tide at 2:06 am and low tide at 10:31 am.
What is today's tide coefficient?
103: big 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 Useless Loop?
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: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. 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 Useless Loop today
Learn more
Useless Loop has no station of its own, so we use the tide at Denham (Department of Transport (Western Australia)), 16 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: Department of Transport, Western Australia: Tide Stations (DOT-025), Denham (DHDEN01) water level observations of 1989–1992, https://catalogue.data.wa.gov.au/dataset/tide-stations. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: harmonic constants fitted by TidePlanet from these observations.