Diomede tides
Today, Wednesday, October 28, 2026 · local time (AKDT) · Alaska, United States- 12:22 am0.9 ft
- 12:39 pm1.1 ft
- 6:22 am0.0 ft
- 6:56 pm-0.1 ft
- Tide now
- 0.2 ft ↑ rising · high 1:04 am (0.9 ft)
- Coefficient
- 86 · average coefficient
- Range today
- 1.1 ft
Today there are high tides at 12:22 am (0.9 ft) and 12:39 pm (1.1 ft) and low tides at 6:22 am and 6:56 pm. Tide coefficient 86. Right now the tide is rising toward the high tide at 1:04 am. In Diomede the tide is mixed: two high and two low tides a day, but of quite different heights. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▲ High tide 12:22 am 0.9 ft · coef. 83
- ▼ Low tide 6:22 am 0.0 ft
- ▲ High tide 12:39 pm 1.1 ft · coef. 86
- ▼ Low tide 6:56 pm -0.1 ft
↑ Rising The tide is rising. 4 h 8 min to high tide at 1:04 am.
Tide coefficient 83 for the 12:22 am high tide and 86 for the 12:39 pm high tide. Average coefficient. The water rises and falls 1.1 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 | 10:57 am · 7:01 pm | High tide 12:22 am · 0.9 ft | Low tide 6:22 am · 0.0 ft | High tide 12:39 pm · 1.1 ft | Low tide 6:56 pm · -0.1 ft | Coef. 86 | 90% | Major periods 4:07 am · 4:39 pm | High |
| Thu 29 | 11:00 am · 6:58 pm | High tide 1:04 am · 0.9 ft | Low tide 7:01 am · 0.0 ft | High tide 1:13 pm · 1.1 ft | Low tide 7:34 pm · -0.1 ft | Coef. 90 | 82% | Major periods 5:11 am · 5:44 pm | High |
| Fri 30 | 11:04 am · 6:54 pm | High tide 1:49 am · 1.0 ft | Low tide 7:42 am · 0.0 ft | High tide 1:50 pm · 1.1 ft | Low tide 8:17 pm · -0.2 ft | Coef. 90 | 72% | Major periods 6:16 am · 6:47 pm | Medium |
| Sat 31 | 11:07 am · 6:50 pm | High tide 2:37 am · 1.0 ft | Low tide 8:29 am · 0.1 ft | High tide 2:30 pm · 1.0 ft | Low tide 9:06 pm · -0.2 ft | Coef. 88 | 62% | Major periods 7:17 am · 7:46 pm | Medium |
| Sun 1 | 10:11 am · 5:47 pm | High tide 2:31 am · 0.9 ft | Low tide 8:23 am · 0.2 ft | High tide 2:16 pm · 1.0 ft | Low tide 8:56 pm · -0.2 ft | Coef. 84 | Last quarter | Major periods 7:13 am · 7:40 pm | Medium |
| Mon 2 | 10:14 am · 5:43 pm | High tide 3:28 am · 0.9 ft | Low tide 9:19 am · 0.2 ft | High tide 3:07 pm · 0.9 ft | Low tide 9:49 pm · -0.2 ft | Coef. 76 | 39% | Major periods 8:05 am · 8:30 pm | Medium |
| Tue 3 | 10:18 am · 5:40 pm | High tide 4:29 am · 0.9 ft | Low tide 10:18 am · 0.3 ft | High tide 4:04 pm · 0.9 ft | Low tide 10:47 pm · -0.1 ft | Coef. 68 | 29% | Major periods 8:53 am · 9:16 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 12 to 14 (coefficient 92, 1.2 ft range). The smallest, on October 21 (coefficient 36, 0.6 ft).
Type of tide
In Diomede 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 20 (1.1 ft) and the lowest, on December 28 (-0.4 ft).
Reference levels
- Highest astronomical tide (HAT)1.2 ft
- Mean higher high water (MHHW)1.0 ft
- Mean high water (MHW)0.8 ft
- Mean sea level (MSL)0.5 ft
- Mean low water (MLW)0.1 ft
- Mean lower low water (MLLW)0.0 ft
- Lowest astronomical tide (LAT)-0.4 ft
Heights above mean lower low water (MLLW), the zero of US nautical charts.
Questions about the tides in Diomede
What time is high tide today in Diomede?
High tide today is at 12:22 am (0.9 ft) and 12:39 pm (1.1 ft). Low tide is at 6:22 am and 6:56 pm.
What time is high tide tomorrow in Diomede?
On Thursday, October 29, high tide at 1:04 am and 1:13 pm and low tide at 7:01 am and 7:34 pm.
What is today's tide coefficient?
86: 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 Diomede?
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 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 Diomede today
Tides near Diomede
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Diomede has no station of its own, so we use the tide at Tin City (NOAA), 31 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)