Ukkusissat tides
Today, Thursday, October 29, 2026 · local time (GMT-2) · Avannaata, Greenland- 12:38 am4.3 ft
- 1:36 pm7.1 ft
- 6:40 am0.4 ft
- 8:17 pm1.9 ft
- Tide now
- 4.2 ft ↑ rising · high 12:38 am (4.3 ft)
- Coefficient
- 98 · spring tides
- Range today
- 6.7 ft
Today there are high tides at 12:38 am (4.3 ft) and 1:36 pm (7.1 ft) and low tides at 6:40 am and 8:17 pm. Tide coefficient 98. Right now the tide is rising toward the high tide at 12:38 am. In Ukkusissat the tide is mixed: two high and two low tides a day, but of quite different heights. The next spring tides: from November 9 to 11.
Today's high and low tides
- ▲ Next high tide 12:38 am 4.3 ft · coef. 98
- ▼ Low tide 6:40 am 0.4 ft
- ▲ High tide 1:36 pm 7.1 ft · coef. 92
- ▼ Low tide 8:17 pm 1.9 ft
↑ Rising The tide is rising. 34 min to high tide at 12:38 am.
Tide coefficient 98 for the 12:38 am high tide and 92 for the 1:36 pm high tide. Spring tides. The water rises and falls 6.7 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 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 9:55 am · 4:26 pm | High tide 12:38 am · 4.3 ft | Low tide 6:40 am · 0.4 ft | High tide 1:36 pm · 7.1 ft | Low tide 8:17 pm · 1.9 ft | Coef. 98 | 84% | Major periods 3:02 am · 3:35 pm | High |
| Fri 30 | 10:00 am · 4:20 pm | High tide 1:27 am · 3.9 ft | Low tide 7:23 am · 0.8 ft | High tide 2:26 pm · 6.9 ft | Low tide 9:20 pm · 2.0 ft | Coef. 87 | 75% | Major periods 4:07 am · 4:38 pm | Medium |
| Sat 31 | 10:06 am · 4:15 pm | High tide 2:25 am · 3.5 ft | Low tide 8:11 am · 1.3 ft | High tide 3:20 pm · 6.6 ft | Low tide 10:35 pm · 2.0 ft | Coef. 72 | 64% | Major periods 5:09 am · 5:39 pm | Low |
| Sun 1 | 10:11 am · 4:09 pm | High tide 3:42 am · 3.2 ft | Low tide 9:09 am · 1.9 ft | High tide 4:18 pm · 6.3 ft | — | Coef. 59 | Last quarter | Major periods 6:07 am · 6:35 pm | Low |
| Mon 2 | 10:17 am · 4:04 pm | Low tide 12:07 am · 1.9 ft | High tide 5:30 am · 3.1 ft | Low tide 10:22 am · 2.4 ft | High tide 5:22 pm · 5.9 ft | Coef. 51 | 42% | Major periods 7:01 am · 7:26 pm | Medium |
| Tue 3 | 10:23 am · 3:58 pm | Low tide 1:19 am · 1.6 ft | High tide 7:28 am · 3.6 ft | Low tide 11:50 am · 2.7 ft | High tide 6:30 pm · 5.7 ft | Coef. 54 | 31% | Major periods 7:50 am · 8:13 pm | Medium |
| Wed 4 | 10:29 am · 3:52 pm | Low tide 2:05 am · 1.3 ft | High tide 8:29 am · 4.1 ft | Low tide 1:17 pm · 2.8 ft | High tide 7:34 pm · 5.5 ft | Coef. 64 | 22% | Major periods 8:35 am · 8:58 pm | Medium |
▲ 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 came from October 10 to 11 (coefficient 104, 5.7 ft range). The smallest, from October 18 to 19 (coefficient 21, 3.1 ft).
Type of tide
In Ukkusissat 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 June 17 (7.7 ft) and the lowest, on May 17 (0.1 ft).
Reference levels
- Mean higher high water (MHHW)6.0 ft
- Mean high water (MHW)5.1 ft
- Mean sea level (MSL)3.4 ft
- Mean low water (MLW)1.7 ft
- Mean lower low water (MLLW)1.2 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 Ukkusissat
What time is high tide today in Ukkusissat?
High tide today is at 12:38 am (4.3 ft) and 1:36 pm (7.1 ft). Low tide is at 6:40 am and 8:17 pm.
What time is high tide tomorrow in Ukkusissat?
On Friday, October 30, high tide at 1:27 am and 2:26 pm and low tide at 7:23 am and 9:20 pm.
What is today's tide coefficient?
98: 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 9 to 11, after the new or full moon.
How many tides a day are there in Ukkusissat?
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 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 Ukkusissat today
Tides near Ukkusissat
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Ukkusissat has no station of its own, so we use the tide at Salleq v.Salliup Qeqertanngua (DMI), 13 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). Danish Meteorological Institute (DMI), https://www.dmi.dk. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data