Sullivan tides
Today, Wednesday, October 28, 2026 · local time (EDT) · Maine, United States- 12:23 am11.4 ft
- 12:34 pm12.7 ft
- 6:24 am0.1 ft
- 7:02 pm-1.1 ft
- Tide now
- -1.1 ft ↓ falling · low 7:02 pm (-1.1 ft)
- Coefficient
- 85 · average coefficient
- Range today
- 13.8 ft
Today there are high tides at 12:23 am (11.4 ft) and 12:34 pm (12.7 ft) and low tides at 6:24 am and 7:02 pm. Tide coefficient 85. Right now the tide is falling toward the low tide at 7:02 pm. In Sullivan the tide is semidiurnal: two high and two low tides a day, of similar height. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▲ High tide 12:23 am 11.4 ft · coef. 85
- ▼ Low tide 6:24 am 0.1 ft
- ▲ High tide 12:34 pm 12.7 ft · coef. 84
- ▼ Next low tide 7:02 pm -1.1 ft
↓ Falling The tide is falling. 8 min to low tide at 7:02 pm.
Tide coefficient 85 for the 12:23 am high tide and 84 for the 12:34 pm high tide. Average coefficient. The water rises and falls 13.8 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 lower low water (MLLW), the zero of US nautical charts. 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, Wed 28 | 7:05 am · 5:27 pm | High tide 12:23 am · 11.4 ft | Low tide 6:24 am · 0.1 ft | High tide 12:34 pm · 12.7 ft | Low tide 7:02 pm · -1.1 ft | Coef. 85 | 91% | Major periods 1:06 am · 1:38 pm | High |
| Thu 29 | 7:06 am · 5:26 pm | High tide 1:12 am · 11.2 ft | Low tide 7:14 am · 0.3 ft | High tide 1:25 pm · 12.6 ft | Low tide 7:54 pm · -0.9 ft | Coef. 83 | 84% | Major periods 2:10 am · 2:43 pm | Medium |
| Fri 30 | 7:08 am · 5:25 pm | High tide 2:05 am · 10.9 ft | Low tide 8:08 am · 0.6 ft | High tide 2:19 pm · 12.2 ft | Low tide 8:52 pm · -0.5 ft | Coef. 79 | 74% | Major periods 3:15 am · 3:46 pm | Medium |
| Sat 31 | 7:09 am · 5:23 pm | High tide 3:04 am · 10.5 ft | Low tide 9:07 am · 0.9 ft | High tide 3:20 pm · 11.8 ft | Low tide 9:54 pm · -0.1 ft | Coef. 74 | 63% | Major periods 4:17 am · 4:47 pm | Medium |
| Sun 1 | 6:10 am · 4:22 pm | High tide 3:07 am · 10.3 ft | Low tide 9:13 am · 1.2 ft | High tide 3:26 pm · 11.3 ft | Low tide 9:59 pm · 0.2 ft | Coef. 70 | Last quarter | Major periods 4:15 am · 4:42 pm | Medium |
| Mon 2 | 6:12 am · 4:20 pm | High tide 4:15 am · 10.2 ft | Low tide 10:23 am · 1.2 ft | High tide 4:36 pm · 11.0 ft | Low tide 11:05 pm · 0.3 ft | Coef. 67 | 41% | Major periods 5:08 am · 5:33 pm | Medium |
| Tue 3 | 6:13 am · 4:19 pm | High tide 5:22 am · 10.3 ft | Low tide 11:33 am · 1.1 ft | High tide 5:45 pm · 10.9 ft | — | Coef. 67 | 30% | Major periods 5:57 am · 6:20 pm | Medium |
▲ high tide · ▼ low tide · heights above MLLW. 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 29 (coefficient 85, 13.8 ft range). The smallest, from October 18 to 19 (coefficient 48, 7.0 ft).
Type of tide
In Sullivan 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 June 15 (13.2 ft) and the lowest, on December 25 (-1.7 ft).
Reference levels
- Highest astronomical tide (HAT)13.7 ft
- Mean higher high water (MHHW)11.4 ft
- Mean high water (MHW)10.9 ft
- Mean sea level (MSL)5.7 ft
- Mean low water (MLW)0.4 ft
- Mean lower low water (MLLW)0.0 ft
- Lowest astronomical tide (LAT)-2.2 ft
Heights above mean lower low water (MLLW), the zero of US nautical charts.
Questions about the tides in Sullivan
What time is high tide today in Sullivan?
High tide today is at 12:23 am (11.4 ft) and 12:34 pm (12.7 ft). Low tide is at 6:24 am and 7:02 pm.
What time is high tide tomorrow in Sullivan?
On Thursday, October 29, high tide at 1:12 am and 1:25 pm and low tide at 7:14 am and 7:54 pm.
What is today's tide coefficient?
85: 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 26 to 28, 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 Sullivan?
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 lower low water (MLLW), the zero of US nautical charts. 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 Sullivan today
Tides near Sullivan
- Hancock ▲ 12:37 am
- Gouldsboro ▲ 12:22 am
- Steuben ▲ 12:33 am
- Southwest Harbor ▲ 12:23 am
- Tremont ▲ 12:27 am
- Blue Hill ▲ 12:32 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Sullivan has no station of its own, so we use the tide at Bar Harbor (NOAA), 8.9 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: Slackwater database (https://github.com/openwatersio/slackwater-database)