Bintulu tides
Today, Thursday, October 29, 2026 · local time (GMT+8) · Sarawak, Malaysia- 9:35 pm7.4 ft
- 10:15 am1.4 ft
- Tide now
- 1.7 ft ↑ rising · high 9:35 pm (7.4 ft)
- Coefficient
- 111 · big spring tides
- Range today
- 6.0 ft
Today there is high tide at 9:35 pm (7.4 ft) and low tide at 10:15 am. Tide coefficient 111. Right now the tide is rising toward the high tide at 9:35 pm. In Bintulu 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
- ▼ Low tide 10:15 am 1.4 ft
- ▲ Next high tide 9:35 pm 7.4 ft · coef. 111
↑ Rising The tide is rising. 10 h 8 min to high tide at 9:35 pm.
Tide coefficient 111 for the 9:35 pm high tide. Big spring tides. The water rises and falls 6.0 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 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:11 am · 6:12 pm | Low tide 10:15 am · 1.4 ft | High tide 9:35 pm · 7.4 ft | Coef. 111 | 88% | Major periods 1:33 am · 2:05 pm | Medium |
| Fri 30 | 6:11 am · 6:12 pm | Low tide 11:10 am · 1.2 ft | High tide 10:16 pm · 7.7 ft | Coef. 115 | 79% | Major periods 2:38 am · 3:10 pm | Medium |
| Sat 31 | 6:11 am · 6:12 pm | Low tide 12:05 pm · 1.3 ft | High tide 10:54 pm · 7.8 ft | Coef. 112 | 69% | Major periods 3:41 am · 4:12 pm | Medium |
| Sun 1 | 6:11 am · 6:12 pm | Low tide 1:01 pm · 1.6 ft | High tide 11:29 pm · 7.6 ft | Coef. 104 | 58% | Major periods 4:42 am · 5:10 pm | Medium |
| Mon 2 | 6:11 am · 6:12 pm | Low tide 1:59 pm · 2.1 ft | High tide 11:57 pm · 7.3 ft | Coef. 89 | Last quarter | Major periods 5:37 am · 6:03 pm | Medium |
| Tue 3 | 6:11 am · 6:11 pm | Low tide 3:01 pm · 2.6 ft | — | Coef. 85 | 36% | Major periods 6:28 am · 6:52 pm | Medium |
| Wed 4 | 6:11 am · 6:11 pm | High tide 12:11 am · 6.9 ft | Low tide 4:04 pm · 3.3 ft | Coef. 70 | 26% | Major periods 7:15 am · 7:38 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 30 (coefficient 115, 6.5 ft range). The smallest, on October 10 (coefficient 20, 1.9 ft).
Type of tide
In Bintulu 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 November 28 (7.9 ft) and the lowest, on June 16 (-0.1 ft).
Reference levels
- Highest astronomical tide (HAT)8.2 ft
- Mean higher high water (MHHW)6.5 ft
- Mean high water (MHW)6.1 ft
- Mean sea level (MSL)4.8 ft
- Mean low water (MLW)4.1 ft
- Mean lower low water (MLLW)2.4 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 Bintulu
What time is high tide today in Bintulu?
High tide today is at 9:35 pm (7.4 ft). Low tide is at 10:15 am.
What time is high tide tomorrow in Bintulu?
On Friday, October 30, high tide at 10:16 pm and low tide at 11:10 am.
What is today's tide coefficient?
111: 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 Bintulu?
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 Bintulu today
Learn more
Tides from the Bintulu station (TICON-4), 4.2 mi from Bintulu. 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