Dutch Harbor tides
Today, Wednesday, October 28, 2026 · local time (AKDT) · Alaska, United States- 10:42 am3.6 ft
- 6:35 pm3.9 ft
- 2:01 am-0.9 ft
- 1:54 pm3.3 ft
- Tide now
- 3.7 ft ↑ rising · high 6:35 pm (3.9 ft)
- Coefficient
- 113 · big spring tides
- Range today
- 4.8 ft
Today there are high tides at 10:42 am (3.6 ft) and 6:35 pm (3.9 ft) and low tides at 2:01 am and 1:54 pm. Tide coefficient 113. Right now the tide is rising toward the high tide at 6:35 pm. In Dutch Harbor the tide is mixed, mainly diurnal: on many days there is only one high and one low tide. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▼ Low tide 2:01 am -0.9 ft
- ▲ High tide 10:42 am 3.6 ft · coef. 112
- ▼ Low tide 1:54 pm 3.3 ft
- ▲ Next high tide 6:35 pm 3.9 ft · coef. 113
↑ Rising The tide is rising. 1 h 32 min to high tide at 6:35 pm.
Tide coefficient 112 for the 10:42 am high tide and 113 for the 6:35 pm high tide. Big spring tides. The water rises and falls 4.8 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 | 9:59 am · 7:40 pm | Low tide 2:01 am · -0.9 ft | High tide 10:42 am · 3.6 ft | Low tide 1:54 pm · 3.3 ft | High tide 6:35 pm · 3.9 ft | Coef. 113 | 90% | Major periods 3:57 am · 4:29 pm | High |
| Thu 29 | 10:01 am · 7:38 pm | Low tide 2:58 am · -1.1 ft | High tide 11:26 am · 3.8 ft | Low tide 3:17 pm · 3.3 ft | High tide 7:45 pm · 3.9 ft | Coef. 115 | 82% | Major periods 5:01 am · 5:34 pm | High |
| Fri 30 | 10:03 am · 7:35 pm | Low tide 3:57 am · -1.2 ft | High tide 12:06 pm · 3.9 ft | Low tide 4:33 pm · 3.2 ft | High tide 8:56 pm · 3.9 ft | Coef. 112 | 72% | Major periods 6:06 am · 6:37 pm | Medium |
| Sat 31 | 10:05 am · 7:33 pm | Low tide 4:54 am · -1.1 ft | High tide 12:44 pm · 4.0 ft | Low tide 5:37 pm · 2.8 ft | High tide 10:11 pm · 3.7 ft | Coef. 103 | 62% | Major periods 7:07 am · 7:36 pm | Medium |
| Sun 1 | 9:07 am · 6:31 pm | Low tide 4:47 am · -0.9 ft | High tide 12:22 pm · 4.0 ft | Low tide 5:37 pm · 2.4 ft | High tide 10:28 pm · 3.5 ft | Coef. 88 | Last quarter | Major periods 7:03 am · 7:30 pm | Medium |
| Mon 2 | 9:09 am · 6:30 pm | Low tide 5:38 am · -0.5 ft | High tide 12:59 pm · 3.9 ft | Low tide 6:38 pm · 1.9 ft | High tide 11:47 pm · 3.2 ft | Coef. 69 | 39% | Major periods 7:55 am · 8:20 pm | Medium |
| Tue 3 | 9:11 am · 6:28 pm | Low tide 6:28 am · 0.0 ft | High tide 1:34 pm · 3.8 ft | Low tide 7:38 pm · 1.3 ft | — | Coef. 47 | 29% | Major periods 8:43 am · 9:06 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 come from October 28 to 29 (coefficient 115, 5.0 ft range). The smallest, on October 8 (coefficient 20, 2.4 ft).
Type of tide
In Dutch Harbor the tide is mixed, mainly diurnal: on many days there is only one high and one low tide. Types of tides
2026 extremes: the highest tide of the year is on December 23 (5.1 ft) and the lowest, on May 18 (-1.8 ft).
Questions about the tides in Dutch Harbor
What time is high tide today in Dutch Harbor?
High tide today is at 10:42 am (3.6 ft) and 6:35 pm (3.9 ft). Low tide is at 2:01 am and 1:54 pm.
What time is high tide tomorrow in Dutch Harbor?
On Thursday, October 29, high tide at 11:26 am and 7:45 pm and low tide at 2:58 am and 3:17 pm.
What is today's tide coefficient?
113: 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 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 Dutch Harbor?
The tide is mixed, mainly diurnal: on many days there is only one high and one low tide. 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 Dutch Harbor today
Tides near Dutch Harbor
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Dutch Harbor has no station of its own, so we use the tide at Dutch Harbor (NOAA), 0.2 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. It is a NOAA subordinate station: its times and heights come from the Unalaska reference station with the official corrections. Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)