Coonamia tides
Today, Thursday, October 29, 2026 · local time (GMT+10:30) · South Australia, Australia- 9:06 am10.5 ft
- 10:06 pm5.9 ft
- 3:00 am3.4 ft
- 4:32 pm1.0 ft
- Tide now
- 9.7 ft ↓ falling · low 4:32 pm (1.0 ft)
- Coefficient
- 90 · spring tides
- Range today
- 9.5 ft
Today there are high tides at 9:06 am (10.5 ft) and 10:06 pm (5.9 ft) and low tides at 3:00 am and 4:32 pm. Tide coefficient 90. Right now the tide is falling toward the low tide at 4:32 pm. In Coonamia 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 3:00 am 3.4 ft
- ▲ High tide 9:06 am 10.5 ft · coef. 90
- ▼ Next low tide 4:32 pm 1.0 ft
- ▲ High tide 10:06 pm 5.9 ft · coef. 86
↓ Falling The tide is falling. 6 h 4 min to low tide at 4:32 pm.
Tide coefficient 90 for the 9:06 am high tide and 86 for the 10:06 pm high tide. Spring tides. The water rises and falls 9.5 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 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:22 am · 7:42 pm | Low tide 3:00 am · 3.4 ft | High tide 9:06 am · 10.5 ft | Low tide 4:32 pm · 1.0 ft | High tide 10:06 pm · 5.9 ft | Coef. 90 | 89% | Major periods 2:18 am · 2:51 pm | Medium |
| Fri 30 | 6:21 am · 7:43 pm | Low tide 3:02 am · 3.5 ft | High tide 9:26 am · 10.2 ft | Low tide 4:58 pm · 1.5 ft | High tide 10:20 pm · 5.4 ft | Coef. 82 | 80% | Major periods 3:23 am · 3:55 pm | Medium |
| Sat 31 | 6:20 am · 7:44 pm | Low tide 2:56 am · 3.5 ft | High tide 9:44 am · 9.8 ft | Low tide 5:22 pm · 2.2 ft | High tide 10:30 pm · 4.9 ft | Coef. 71 | 70% | Major periods 4:27 am · 4:58 pm | Medium |
| Sun 1 | 6:19 am · 7:45 pm | Low tide 2:48 am · 3.4 ft | High tide 9:59 am · 9.0 ft | Low tide 5:45 pm · 3.0 ft | High tide 10:24 pm · 4.6 ft | Coef. 59 | 59% | Major periods 5:28 am · 5:56 pm | Medium |
| Mon 2 | 6:18 am · 7:45 pm | Low tide 2:39 am · 3.5 ft | High tide 10:05 am · 8.1 ft | Low tide 6:11 pm · 3.9 ft | High tide 9:29 pm · 4.4 ft | Coef. 43 | Last quarter | Major periods 6:23 am · 6:49 pm | Medium |
| Tue 3 | 6:17 am · 7:46 pm | Low tide 2:20 am · 3.6 ft | High tide 9:45 am · 7.0 ft | — | — | Coef. 25 | 37% | Major periods 7:14 am · 7:39 pm | Medium |
| Wed 4 | 6:16 am · 7:47 pm | Low tide 1:11 am · 3.7 ft | High tide 8:27 am · 6.3 ft | Low tide 1:53 pm · 5.2 ft | High tide 6:19 pm · 5.7 ft | Coef. 35 | 27% | Major periods 8:02 am · 8:25 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 11 to 13 (coefficient 104, 9.7 ft range). The smallest, on October 20 (coefficient 20, 3.2 ft).
Type of tide
In Coonamia 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 May 18 (11.1 ft) and the lowest, on December 24 (0.2 ft).
Reference levels
- Highest astronomical tide (HAT)11.3 ft
- Mean higher high water (MHHW)8.9 ft
- Mean high water (MHW)7.7 ft
- Mean sea level (MSL)5.3 ft
- Mean low water (MLW)2.8 ft
- Mean lower low water (MLLW)1.8 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 Coonamia
What time is high tide today in Coonamia?
High tide today is at 9:06 am (10.5 ft) and 10:06 pm (5.9 ft). Low tide is at 3:00 am and 4:32 pm.
What time is high tide tomorrow in Coonamia?
On Friday, October 30, high tide at 9:26 am and 10:20 pm and low tide at 3:02 am and 4:58 pm.
What is today's tide coefficient?
90: 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 Coonamia?
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 Coonamia today
Tides near Coonamia
- Port Broughton ▲ 6:43 am
- Whyalla ▲ 8:28 am
- Port Wakefield ▲ 6:42 am
- Cowell ▲ 5:34 am
- Port Price ▲ 6:41 am
- Chinaman Wells ▲ 5:24 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Tides from the Port Pirie station (TICON-4), 2.1 mi from Coonamia. 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