Unalaska Tides Today
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Unalaska runs a mean tidal range of about 2.8 ft. This month the highest water, 4.6 ft, comes on the afternoon of Nov 25, and the lowest, a -1.3 ft minus tide, on the morning of Nov 26.
| Low tide | 6:32 AM | -0.1 ft |
| High tide | 1:36 PM | 3.9 ft |
| Low tide | 7:52 PM | 1.4 ft |
Today on the water at Unalaska
Today at Unalaska: high tide at 1:36 PM (3.9 ft), low tide at 6:32 AM (-0.1 ft) and 7:52 PM (1.4 ft). The National Weather Service forecast for Tuesday is rain showers likely with NW winds 10 to 15 mph, 43°F. Wind that strong can hold water in or push it out, so the real tide may run above or below these predictions. In effect now: Small Craft Advisory. The water at the gauge reads 44°F. Sunrise is at 9:08 AM and sunset at 6:30 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Rain Showers Likely | SW 5 to 10 mph | 37°F |
| Tuesday | Rain Showers Likely | NW 10 to 15 mph | 43°F |
Forecast: National Weather Service point forecast for this location.
Where Unalaska is
Unalaska sits at 53.8792° N, 166.5403° W on the Aleutian Islands, at Unalaska, AK. The station here is a live gauge in NOAA's National Water Level Observation Network, the reference network the rest of the coast's tide predictions are tied to. It has been in NOAA's records since 1955. The nearest weather station is Unalaska, AK, a shore station reporting wind and, at most sites, water temperature, right at this station.
The tide at Unalaska
Unalaska has a mixed tide: two highs and two lows a day, but of unequal size, so one low each day drains noticeably lower than the other. This month's predictions average 1.6 high tides a day here. The mean range from lower low to higher high is 3.6 ft, and 2.4 ft between the average high and the average low, a moderate tide. On an average day the higher high tops the lower high by 0.3 ft and the lower low sits 0.9 ft below the other low. For the water around it: Aleutian tides are mixed, with two unequal highs a day and strong currents through the passes.
About this station
- High tide reaches Unalaska about 2.8 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 6.7 ft on Jan 27, 1960.
- Lowest on record: -3.0 ft on Jan 2, 2022.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Unalaska from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 3.6 ft above it and mean sea level 2.1 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 0.3 ft below MLLW here, so a water level on this page converts to NAVD88 by adding that amount. Source: NOAA CO-OPS station 9462620, a National Water Level Observation Network gauge, established 1955. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them. The observed line is the gauge's own six-minute water level feed.
Tide stations near Unalaska
- Udagak Strait: 14.0 mi, tides about 219 min earlier
- Anderson Bay: 18.3 mi, tides about 14 min later
- Raven Bay: 31.1 mi, tides about 206 min earlier
- Otter Point: 62.9 mi, tides about 34 min earlier
- Scotch Cap: 80.9 mi, tides about 130 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Unalaska this month: Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28, Nov 29, Nov 30. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Unalaska this month: Nov 1, Nov 2, Nov 3, Nov 7, Nov 8, Nov 10, Nov 11, Nov 12, Nov 22, Nov 23, Nov 24, Nov 26 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Unalaska, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 8:44–10:44 AM 9:09–11:09 PM | 1:28–3:28 AM 3:39–5:39 PM | 50 |
| Wed Nov 4 🌗 | 9:32–11:32 AM 9:57–11:57 PM | 2:55–4:55 AM 3:49–5:49 PM | 63 |
| Thu Nov 5 🌘 | 10:17–12:17 PM 10:42–12:42 AM | 4:19–6:19 AM 3:58–5:58 PM | 75 |
| Fri Nov 6 🌘 | 11:02–1:02 PM 11:27–1:27 AM | 5:42–7:42 AM 4:07–6:07 PM | 85 |
| Sat Nov 7 🌘 | 11:47–1:47 PM 12:12–2:12 AM | 7:03–9:03 AM 4:18–6:18 PM | 93 |
| Sun Nov 8 🌘 | 12:34–2:34 PM 12:59–2:59 AM | 8:24–10:24 AM 4:33–6:33 PM | 97 |
| Mon Nov 9 🌑 | 1:22–3:22 PM 1:47–3:47 AM | 9:44–11:44 AM 4:53–6:53 PM | 99 |
Predictions & observations: NOAA CO-OPS station 9462620. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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