Alyangula tides
Today, Thursday, October 29, 2026 · local time (GMT+9:30) · Northern Territory, Australia- 12:21 am5.2 ft
- 10:11 am1.7 ft
- Tide now
- 1.7 ft ↓ falling · low 10:11 am (1.7 ft)
- Coefficient
- 81 · average coefficient
- Range today
- 3.5 ft
Today there is high tide at 12:21 am (5.2 ft) and low tide at 10:11 am. Tide coefficient 81. Right now the tide is falling toward the low tide at 10:11 am. In Alyangula the tide is diurnal: one high and one low tide a day most days. The next spring tides: from October 27 to 29.
Today's high and low tides
- ▲ High tide 12:21 am 5.2 ft · coef. 81
- ▼ Next low tide 10:11 am 1.7 ft
↓ Falling The tide is falling. 42 min to low tide at 10:11 am.
Tide coefficient 81 for the 12:21 am high tide. Average coefficient. The water rises and falls 3.5 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 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 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 5:51 am · 6:25 pm | High tide 12:21 am · 5.2 ft | Low tide 10:11 am · 1.7 ft | Coef. 81 | 88% | Major periods 1:25 am · 1:57 pm | Medium |
| Fri 30 | 5:51 am · 6:25 pm | High tide 12:57 am · 5.6 ft | Low tide 11:18 am · 1.4 ft | Coef. 99 | 80% | Major periods 2:30 am · 3:02 pm | Medium |
| Sat 31 | 5:50 am · 6:26 pm | High tide 1:37 am · 5.9 ft | Low tide 12:25 pm · 1.2 ft | Coef. 110 | 70% | Major periods 3:34 am · 4:05 pm | Medium |
| Sun 1 | 5:50 am · 6:26 pm | High tide 2:21 am · 5.9 ft | Low tide 1:42 pm · 1.2 ft | Coef. 112 | 59% | Major periods 4:34 am · 5:03 pm | Medium |
| Mon 2 | 5:50 am · 6:26 pm | High tide 3:11 am · 5.7 ft | Low tide 4:27 pm · 1.4 ft | Coef. 109 | Last quarter | Major periods 5:30 am · 5:56 pm | Medium |
| Tue 3 | 5:49 am · 6:27 pm | High tide 4:12 am · 5.3 ft | Low tide 5:23 pm · 1.5 ft | Coef. 100 | 36% | Major periods 6:21 am · 6:45 pm | Medium |
| Wed 4 | 5:49 am · 6:27 pm | High tide 5:35 am · 5.0 ft | Low tide 5:49 pm · 1.8 ft | Coef. 88 | 26% | Major periods 7:09 am · 7:31 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 come on October 31 (coefficient 110, 4.6 ft range). The smallest, on October 12 (coefficient 23, 0.5 ft).
Type of tide
In Alyangula the tide is diurnal: one high and one low tide a day most days. Types of tides
2026 extremes: the highest tide of the year is on January 4 (7.2 ft) and the lowest, on July 14 (0.1 ft).
Reference levels
- Highest astronomical tide (HAT)7.3 ft
- Mean higher high water (MHHW)5.0 ft
- Mean high water (MHW)4.3 ft
- Mean sea level (MSL)3.4 ft
- Mean low water (MLW)2.4 ft
- Mean lower low water (MLLW)2.0 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 Alyangula
What time is high tide today in Alyangula?
High tide today is at 12:21 am (5.2 ft). Low tide is at 10:11 am.
What time is high tide tomorrow in Alyangula?
On Friday, October 30, high tide at 12:57 am and low tide at 11:18 am.
What is today's tide coefficient?
81: 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 Alyangula?
The tide is diurnal: one high and one low tide a day most days. 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 Alyangula today
Learn more
Tides from the Groote Eylandt station (TICON-4), 0.5 mi from Alyangula. Times and heights are its predictions. 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