Alaska tide station
Udamat Bay, Sedanka Island tide times
Today, Sunday, October 18, 2026: high tide at 1:00 PM (3.9 ft) and 6:18 PM (4.0 ft); low tide at 3:12 AM (0.7 ft) and 3:12 PM (3.8 ft). Water temperature 45.1 F at buoy UNLA2 (14 mi away).
Low tide▼
3:12AM
0.7FT MLLW
low
High tide▲
1:00PM
3.9FT MLLW
high
Low tide▼
3:12PM
3.8FT MLLW
low
High tide▲
6:18PM
4.0FT MLLW
high
Water temp°F
45.1
7.3C
buoy UNLA2, 14 mi
predicted height above MLLWnightnow (build time; your browser updates it)
As of 1:20 AM the tide is falling toward low tide at 3:12 AM (0.7 ft).
First Quarter 52% litSunrise 9:39 AMSunset 8:01 PMDaylight 10h 21mAKDT
- High tide at Udamat Bay, Sedanka Island, Alaska on is at 1:00 PM (3.9 ft above MLLW) and 6:18 PM (4.0 ft above MLLW).
- Low tide at Udamat Bay, Sedanka Island on is at 3:12 AM (0.7 ft) and 3:12 PM (3.8 ft).
- Today's tidal range at Udamat Bay, Sedanka Island is 3.3 ft (highest high 4.0 ft, lowest low 0.7 ft).
- The nearest NOAA water temperature to Udamat Bay, Sedanka Island is 45.1 F at buoy UNLA2 (14 mi away), as of .
- Sunrise 9:39 AM, sunset 8:01 PM (AKDT); moon first quarter, 52% illuminated.
- Predictions are NOAA CO-OPS tide predictions for station 9462645 (harmonic reference station), heights above MLLW.
Next 7 days at Udamat Bay, Sedanka Island
| Date | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Sunrise | Sunset | Moon |
|---|---|---|---|---|---|---|---|
| Sun Oct 18today | 3:12 AM0.7 ft | 1:00 PM3.9 ft | 3:12 PM3.8 ft | 6:18 PM4.0 ft | 9:39 AM | 8:01 PM | 52% |
| Mon Oct 19 | 4:18 AM0.8 ft | 1:18 PM4.0 ft | 5:06 PM3.5 ft | 10:06 PM3.7 ft | 9:41 AM | 7:59 PM | 63% |
| Tue Oct 20 | 5:18 AM0.9 ft | 1:18 PM4.1 ft | 6:12 PM2.9 ft | 11:30 PM3.8 ft | 9:43 AM | 7:56 PM | 73% |
| Wed Oct 21 | 6:06 AM0.9 ft | 1:06 PM4.4 ft | 6:54 PM2.2 ft | 9:45 AM | 7:54 PM | 82% | |
| Thu Oct 22 | 12:36 AM4.0 ft | 6:48 AM1.1 ft | 1:24 PM4.7 ft | 7:30 PM1.5 ft | 9:47 AM | 7:52 PM | 89% |
| Fri Oct 23 | 1:30 AM4.2 ft | 7:24 AM1.3 ft | 1:48 PM5.0 ft | 8:12 PM0.7 ft | 9:48 AM | 7:50 PM | 95% |
| Sat Oct 24 | 2:24 AM4.4 ft | 8:00 AM1.6 ft | 2:12 PM5.2 ft | 8:48 PM-0.1 ft | 9:50 AM | 7:48 PM | 98% |
Water temperature near Udamat Bay, Sedanka Island
45.1 F (7.3 C)
NDBC buoy UNLA2 (9462620 - Unalaska, AK), 14 mi away, observed 08:48 UTC October 18, 2026
Water temperature is the nearest NOAA reading to Udamat Bay, Sedanka Island, not a measurement at the tide gauge itself (this station has no water-temperature sensor). See water temperature by state for every sensor and buoy.
Tide tables
October 2026 tide table
| Date | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Sunrise | Sunset | Moon |
|---|---|---|---|---|---|---|---|
| Thu Oct 1 | 9:08 AM | 8:41 PM | 71% | ||||
| Fri Oct 2 | 9:09 AM | 8:39 PM | 61% | ||||
| Sat Oct 3 | 9:11 AM | 8:36 PM | 50% | ||||
| Sun Oct 4 | 9:13 AM | 8:34 PM | 40% | ||||
| Mon Oct 5 | 9:15 AM | 8:32 PM | 29% | ||||
| Tue Oct 6 | 9:17 AM | 8:29 PM | 20% | ||||
| Wed Oct 7 | 9:18 AM | 8:27 PM | 12% | ||||
| Thu Oct 8 | 9:20 AM | 8:24 PM | 6% | ||||
| Fri Oct 9 | 9:22 AM | 8:22 PM | 2% | ||||
| Sat Oct 10 | 9:24 AM | 8:20 PM | 0% | ||||
| Sun Oct 11 | 9:26 AM | 8:17 PM | 0% | ||||
| Mon Oct 12 | 9:28 AM | 8:15 PM | 3% | ||||
| Tue Oct 13 | 9:30 AM | 8:12 PM | 8% | ||||
| Wed Oct 14 | 9:31 AM | 8:10 PM | 14% | ||||
| Thu Oct 15 | 9:33 AM | 8:08 PM | 22% | ||||
| Fri Oct 16 | 1:12 AM0.3 ft | 5:00 PM4.6 ft | 9:35 AM | 8:05 PM | 32% | ||
| Sat Oct 17 | 2:06 AM0.5 ft | 5:30 PM4.4 ft | 9:37 AM | 8:03 PM | 42% | ||
| Sun Oct 18today | 3:12 AM0.7 ft | 1:00 PM3.9 ft | 3:12 PM3.8 ft | 6:18 PM4.0 ft | 9:39 AM | 8:01 PM | 52% |
| Mon Oct 19 | 4:18 AM0.8 ft | 1:18 PM4.0 ft | 5:06 PM3.5 ft | 10:06 PM3.7 ft | 9:41 AM | 7:59 PM | 63% |
| Tue Oct 20 | 5:18 AM0.9 ft | 1:18 PM4.1 ft | 6:12 PM2.9 ft | 11:30 PM3.8 ft | 9:43 AM | 7:56 PM | 73% |
| Wed Oct 21 | 6:06 AM0.9 ft | 1:06 PM4.4 ft | 6:54 PM2.2 ft | 9:45 AM | 7:54 PM | 82% | |
| Thu Oct 22 | 12:36 AM4.0 ft | 6:48 AM1.1 ft | 1:24 PM4.7 ft | 7:30 PM1.5 ft | 9:47 AM | 7:52 PM | 89% |
| Fri Oct 23 | 1:30 AM4.2 ft | 7:24 AM1.3 ft | 1:48 PM5.0 ft | 8:12 PM0.7 ft | 9:48 AM | 7:50 PM | 95% |
| Sat Oct 24 | 2:24 AM4.4 ft | 8:00 AM1.6 ft | 2:12 PM5.2 ft | 8:48 PM-0.1 ft | 9:50 AM | 7:48 PM | 98% |
| Sun Oct 25 | 3:18 AM4.5 ft | 8:36 AM2.0 ft | 2:42 PM5.5 ft | 9:24 PM-0.7 ft | 9:52 AM | 7:45 PM | 100% |
| Mon Oct 26 | 4:06 AM4.6 ft | 9:12 AM2.4 ft | 3:06 PM5.7 ft | 10:06 PM-1.1 ft | 9:54 AM | 7:43 PM | 99% |
| Tue Oct 27 | 5:00 AM4.5 ft | 9:48 AM2.8 ft | 3:30 PM5.8 ft | 10:54 PM-1.4 ft | 9:56 AM | 7:41 PM | 96% |
| Wed Oct 28 | 6:00 AM4.3 ft | 10:30 AM3.2 ft | 4:00 PM5.8 ft | 11:42 PM-1.3 ft | 9:58 AM | 7:39 PM | 91% |
| Thu Oct 29 | 7:00 AM4.2 ft | 11:06 AM3.5 ft | 4:36 PM5.7 ft | 10:00 AM | 7:37 PM | 84% | |
| Fri Oct 30 | 12:36 AM-1.1 ft | 8:18 AM4.0 ft | 12:00 PM3.7 ft | 5:12 PM5.4 ft | 10:02 AM | 7:35 PM | 76% |
| Sat Oct 31 | 1:36 AM-0.8 ft | 10:36 AM4.0 ft | 1:12 PM3.8 ft | 6:12 PM4.9 ft | 10:04 AM | 7:33 PM | 66% |
November 2026 tide table
| Date | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Sunrise | Sunset | Moon |
|---|---|---|---|---|---|---|---|
| Sun Nov 1 | 1:42 AM-0.3 ft | 10:30 AM4.2 ft | 1:54 PM3.7 ft | 7:12 PM4.3 ft | 9:06 AM | 6:31 PM | 55% |
| Mon Nov 2 | 2:48 AM0.1 ft | 11:06 AM4.4 ft | 3:48 PM3.1 ft | 8:54 PM4.0 ft | 9:08 AM | 6:29 PM | 45% |
| Tue Nov 3 | 3:54 AM0.5 ft | 11:24 AM4.6 ft | 5:12 PM2.3 ft | 10:30 PM3.8 ft | 9:10 AM | 6:27 PM | 34% |
| Wed Nov 4 | 4:48 AM1.0 ft | 11:42 AM4.9 ft | 6:06 PM1.5 ft | 11:54 PM3.9 ft | 9:12 AM | 6:25 PM | 25% |
| Thu Nov 5 | 5:36 AM1.4 ft | 12:06 PM5.1 ft | 6:48 PM0.7 ft | 9:14 AM | 6:23 PM | 16% | |
| Fri Nov 6 | 1:06 AM4.0 ft | 6:18 AM1.8 ft | 12:30 PM5.3 ft | 7:24 PM0.1 ft | 9:16 AM | 6:21 PM | 9% |
| Sat Nov 7 | 2:06 AM4.1 ft | 7:00 AM2.2 ft | 1:00 PM5.4 ft | 8:00 PM-0.4 ft | 9:18 AM | 6:19 PM | 4% |
| Sun Nov 8 | 2:54 AM4.2 ft | 7:30 AM2.6 ft | 1:30 PM5.5 ft | 8:36 PM-0.6 ft | 9:19 AM | 6:18 PM | 1% |
| Mon Nov 9 | 3:42 AM4.2 ft | 8:06 AM2.9 ft | 2:00 PM5.4 ft | 9:12 PM-0.7 ft | 9:21 AM | 6:16 PM | 0% |
| Tue Nov 10 | 4:24 AM4.2 ft | 8:36 AM3.2 ft | 2:24 PM5.3 ft | 9:42 PM-0.7 ft | 9:23 AM | 6:14 PM | 1% |
| Wed Nov 11 | 5:06 AM4.0 ft | 9:12 AM3.4 ft | 2:42 PM5.2 ft | 10:18 PM-0.5 ft | 9:25 AM | 6:13 PM | 5% |
| Thu Nov 12 | 5:54 AM3.9 ft | 9:42 AM3.5 ft | 2:48 PM5.0 ft | 11:00 PM-0.3 ft | 9:27 AM | 6:11 PM | 11% |
| Fri Nov 13 | 6:54 AM3.8 ft | 10:18 AM3.7 ft | 3:06 PM4.9 ft | 11:42 PM-0.1 ft | 9:29 AM | 6:09 PM | 18% |
| Sat Nov 14 | 3:30 PM4.7 ft | 9:31 AM | 6:08 PM | 27% | |||
| Sun Nov 15 | 12:24 AM0.2 ft | 10:24 AM3.9 ft | 12:18 PM3.8 ft | 4:06 PM4.3 ft | 9:33 AM | 6:06 PM | 37% |
| Mon Nov 16 | 1:18 AM0.5 ft | 10:42 AM4.0 ft | 1:54 PM3.6 ft | 4:54 PM3.9 ft | 9:35 AM | 6:05 PM | 47% |
| Tue Nov 17 | 2:06 AM0.8 ft | 10:00 AM4.1 ft | 3:30 PM3.1 ft | 8:12 PM3.4 ft | 9:37 AM | 6:03 PM | 58% |
| Wed Nov 18 | 3:00 AM1.1 ft | 10:18 AM4.4 ft | 4:36 PM2.4 ft | 9:54 PM3.3 ft | 9:38 AM | 6:02 PM | 68% |
| Thu Nov 19 | 3:54 AM1.4 ft | 10:48 AM4.7 ft | 5:24 PM1.6 ft | 11:12 PM3.5 ft | 9:40 AM | 6:00 PM | 77% |
| Fri Nov 20 | 4:42 AM1.8 ft | 11:18 AM5.0 ft | 6:06 PM0.7 ft | 9:42 AM | 5:59 PM | 86% | |
| Sat Nov 21 | 12:24 AM3.7 ft | 5:30 AM2.2 ft | 11:48 AM5.3 ft | 6:48 PM-0.1 ft | 9:44 AM | 5:58 PM | 92% |
| Sun Nov 22 | 1:24 AM4.0 ft | 6:12 AM2.5 ft | 12:18 PM5.6 ft | 7:30 PM-0.9 ft | 9:46 AM | 5:57 PM | 97% |
| Mon Nov 23 | 2:24 AM4.3 ft | 7:00 AM2.9 ft | 12:54 PM5.9 ft | 8:12 PM-1.5 ft | 9:47 AM | 5:55 PM | 100% |
| Tue Nov 24 | 3:18 AM4.4 ft | 7:42 AM3.2 ft | 1:30 PM6.1 ft | 8:54 PM-1.8 ft | 9:49 AM | 5:54 PM | 100% |
| Wed Nov 25 | 4:12 AM4.5 ft | 8:24 AM3.4 ft | 2:06 PM6.2 ft | 9:42 PM-1.9 ft | 9:51 AM | 5:53 PM | 98% |
| Thu Nov 26 | 5:06 AM4.4 ft | 9:12 AM3.5 ft | 2:48 PM6.1 ft | 10:30 PM-1.8 ft | 9:52 AM | 5:52 PM | 94% |
| Fri Nov 27 | 6:06 AM4.3 ft | 10:06 AM3.6 ft | 3:36 PM5.8 ft | 11:24 PM-1.4 ft | 9:54 AM | 5:51 PM | 88% |
| Sat Nov 28 | 7:06 AM4.3 ft | 11:06 AM3.6 ft | 4:30 PM5.3 ft | 9:56 AM | 5:50 PM | 80% | |
| Sun Nov 29 | 12:18 AM-0.8 ft | 8:00 AM4.4 ft | 12:24 PM3.4 ft | 5:48 PM4.6 ft | 9:57 AM | 5:49 PM | 71% |
| Mon Nov 30 | 1:12 AM-0.2 ft | 8:48 AM4.5 ft | 2:00 PM3.1 ft | 7:12 PM3.9 ft | 9:59 AM | 5:49 PM | 61% |
Tidal datums at Udamat Bay, Sedanka Island
Heights on this page are above mean lower low water (MLLW), the chart datum. NOAA's accepted datums for station 9462645, in feet above MLLW:
MHHW
7.18 ft
Mean higher high water
MHW
6.74 ft
Mean high water
MSL
4.96 ft
Mean sea level
MLW
3.23 ft
Mean low water
MN
3.51 ft
Mean range
GT
5.10 ft
Diurnal range
Nearby tide stations
- English Bay6.8 mi · next high 3:00 PM
- Udagak Strait7.1 mi · next high 11:12 AM
- Unalaska14 mi · next high 2:44 PM
- Dutch Harbor, Amaknak Island14 mi · next high 2:44 PM
- Kisselen Bay, Beaver Inlet17 mi · next high 11:45 AM
- Broad Bight, Akutan Island20 mi · next high 12:49 PM
Questions
What time is high tide at Udamat Bay, Sedanka Island today?
High tide at Udamat Bay, Sedanka Island, Alaska on Sunday, October 18, 2026 is at 1:00 PM (3.9 ft above MLLW) and 6:18 PM (4.0 ft above MLLW), NOAA prediction, local time.
What time is low tide at Udamat Bay, Sedanka Island today?
Low tide at Udamat Bay, Sedanka Island on Sunday, October 18, 2026 is at 3:12 AM (0.7 ft) and 3:12 PM (3.8 ft).
What is the water temperature at Udamat Bay, Sedanka Island?
The nearest NOAA water-temperature reading to Udamat Bay, Sedanka Island is 45.1 F at buoy UNLA2 (14 mi away), as of October 18, 2026.
Not for navigation. Predictions do not include weather; wind and pressure can move the real water level by a foot or more. Source: NOAA CO-OPS station 9462645.