Bireun tides
Today, Thursday, October 29, 2026 · local time (GMT+7) · Aceh, Indonesia- 11:57 am2.2 ft
- 5:52 am-2.8 ft
- 5:50 pm-2.2 ft
- Tide now
- -1.4 ft ↑ rising · high 11:57 am (2.2 ft)
- Coefficient
- 96 · spring tides
- Range today
- 5.0 ft
Bireun has no tide station nearby: this tide is calculated with a global ocean model. It is approximate (it may differ from the real tide by a few minutes and inches) and not for navigation. How we calculate it
Today there is high tide at 11:57 am (2.2 ft) and low tides at 5:52 am and 5:50 pm. Tide coefficient 96. Right now the tide is rising toward the high tide at 11:57 am. In Bireun the tide is semidiurnal: two high and two low tides a day, of similar height. The next spring tides: from November 10 to 12.
Today's high and low tides
- ▼ Low tide 5:52 am -2.8 ft
- ▲ Next high tide 11:57 am 2.2 ft · coef. 96
- ▼ Low tide 5:50 pm -2.2 ft
↑ Rising The tide is rising. 3 h 54 min to high tide at 11:57 am.
Tide coefficient 96 for the 11:57 am high tide. Spring tides. The water rises and falls 5.0 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 mean sea level. 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 | 6:18 am · 6:15 pm | Low tide 5:52 am · -2.8 ft | High tide 11:57 am · 2.2 ft | Low tide 5:50 pm · -2.2 ft | — | Coef. 96 | 87% | Major periods 1:41 am · 2:13 pm | Medium |
| Fri 30 | 6:19 am · 6:15 pm | High tide 12:08 am · 3.0 ft | Low tide 6:36 am · -2.5 ft | High tide 12:42 pm · 1.8 ft | Low tide 6:32 pm · -1.8 ft | Coef. 90 | 79% | Major periods 2:46 am · 3:18 pm | Medium |
| Sat 31 | 6:19 am · 6:15 pm | High tide 12:52 am · 2.6 ft | Low tide 7:27 am · -2.1 ft | High tide 1:37 pm · 1.4 ft | Low tide 7:22 pm · -1.2 ft | Coef. 74 | 68% | Major periods 3:50 am · 4:20 pm | Medium |
| Sun 1 | 6:19 am · 6:15 pm | High tide 1:45 am · 2.1 ft | Low tide 8:32 am · -1.6 ft | High tide 2:50 pm · 1.0 ft | Low tide 8:33 pm · -0.7 ft | Coef. 56 | 57% | Major periods 4:50 am · 5:18 pm | Medium |
| Mon 2 | 6:19 am · 6:15 pm | High tide 2:56 am · 1.6 ft | Low tide 9:59 am · -1.3 ft | High tide 4:33 pm · 1.0 ft | Low tide 10:25 pm · -0.5 ft | Coef. 42 | Last quarter | Major periods 5:45 am · 6:11 pm | Medium |
| Tue 3 | 6:19 am · 6:15 pm | High tide 4:34 am · 1.3 ft | Low tide 11:33 am · -1.3 ft | High tide 6:10 pm · 1.3 ft | — | Coef. 42 | 35% | Major periods 6:35 am · 6:59 pm | Medium |
| Wed 4 | 6:19 am · 6:14 pm | Low tide 12:15 am · -0.7 ft | High tide 6:09 am · 1.4 ft | Low tide 12:44 pm · -1.5 ft | High tide 7:13 pm · 1.7 ft | Coef. 53 | 25% | Major periods 7:22 am · 7:45 pm | Low |
▲ high tide · ▼ low tide · heights above mean sea level. 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, 6.4 ft range). The smallest, on October 19 (coefficient 20, 1.4 ft).
Type of tide
In Bireun the tide is semidiurnal: two high and two low tides a day, of similar height. Types of tides
2026 extremes: the highest tide of the year is on October 27 (3.5 ft) and the lowest, on March 20 (-3.4 ft).
Reference levels
- Mean sea level (MSL)0.0 ft
Heights above mean sea level.
Questions about the tides in Bireun
What time is high tide today in Bireun?
High tide today is at 11:57 am (2.2 ft). Low tide is at 5:52 am and 5:50 pm.
What time is high tide tomorrow in Bireun?
On Friday, October 30, high tide at 12:08 am and 12:42 pm and low tide at 6:36 am and 6:32 pm.
What is today's tide coefficient?
96: 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 November 10 to 12, after the new or full moon.
How many tides a day are there in Bireun?
The tide is semidiurnal: two high and two low tides a day, of similar height. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From mean sea level. 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 Bireun today
Tides near Bireun
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Bireun has no tide station nearby: its tide is calculated with the global EOT20 model, from the nearest model cells offshore (the first one 6.2 mi away). It may differ from the real tide by a few minutes and inches, and more with wind or storms. Heights are above mean sea level, not chart datum, so low tides are negative. Not for navigation. Model attribution: Hart-Davis et al. (2021), EOT20 global empirical ocean tide model, SEANOE, https://doi.org/10.17882/79489, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified by TidePlanet: constants interpolated from the nearest model cells offshore; heights above mean sea level.