Tides Today & Tomorrow in Nuka Passage, AK

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Nuka Passage, AK.
Next low tide : in 1h 22m at 11:36 am (2.3 ft)
Next high tide : 5:55 pm (11.1 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9455308
Common Questions About Tides

Nuka Passage, AK Tides - Apr 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:399.29:559.12:443.83:221.15:276:45Waxing Gibbous1Wed
2Thu9:419.510:319.73:462.94:070.95:246:47Waxing Gibbous2Thu
3Fri10:309.811:0010.34:311.94:440.85:216:50Waxing Gibbous3Fri
4Sat11:1110.011:2510.85:081.15:150.85:186:52Full Moon4Sat
5Sun11:4710.211:4911.25:410.35:440.95:156:55Full Moon5Sun
6Mon12:2010.36:11-0.26:111.25:126:57Full Moon6Mon
7Tue12:1411.512:5210.26:41-0.66:381.55:096:59Full Moon7Tue
8Wed12:3911.71:2510.07:12-0.77:061.95:067:02Full Moon8Wed
9Thu1:0711.82:009.67:44-0.77:352.35:037:04Waning Gibbous9Thu
10Fri1:3611.62:379.18:20-0.58:062.85:007:06Waning Gibbous10Fri
11Sat2:0711.33:198.58:59-0.18:423.44:587:09Waning Gibbous11Sat
12Sun2:4410.94:107.99:440.39:253.94:557:11Waning Gibbous12Sun
13Mon3:2810.35:167.510:390.710:234.24:527:14Third Quarter13Mon
14Tue4:289.76:367.611:441.011:434.34:497:16Third Quarter14Tue
15Wed5:489.27:478.212:581.14:467:18Third Quarter15Wed
16Thu7:199.18:419.21:183.82:060.84:437:21Waning Crescent16Thu
17Fri8:379.59:2610.32:382.63:030.54:407:23Waning Crescent17Fri
18Sat9:4210.110:0811.53:391.03:530.34:377:26Waning Crescent18Sat
19Sun10:3910.610:4812.64:31-0.54:380.24:357:28Waning Crescent19Sun
20Mon11:3211.111:2913.55:18-1.85:220.34:327:30New Moon20Mon
21Tue12:2111.26:04-2.76:040.64:297:33New Moon21Tue
22Wed12:0913.91:0911.16:49-3.26:471.04:267:35New Moon22Wed
23Thu12:5114.01:5810.77:35-3.17:301.64:237:38Waxing Crescent23Thu
24Fri1:3413.52:4810.08:23-2.68:162.24:217:40Waxing Crescent24Fri
25Sat2:1912.73:439.39:13-1.79:072.94:187:42Waxing Crescent25Sat
26Sun3:0911.54:448.710:06-0.710:063.54:157:45First Quarter26Sun
27Mon4:0510.35:558.311:060.211:183.94:127:47First Quarter27Mon
28Tue5:149.17:108.412:121.04:107:50First Quarter28Tue
29Wed6:408.38:128.712:503.91:221.54:077:52First Quarter29Wed
30Thu8:048.18:599.22:153.22:241.74:047:54Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455308)

Common Questions About Nuka Passage, AK Tides

Show All
What time does the tide turn (slack tide) in Nuka Passage, AK today?

Slack tide in Nuka Passage, AK is approximately 2:45 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Nuka Passage, AK?

Nuka Passage, AK is currently in a transitional phase. Tonight's moon is 38% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Nuka Passage, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Nuka Passage, AK?

Tide predictions for Nuka Passage, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Nuka Passage, AK?

Tide data for Nuka Passage, AK is sourced from NOAA Station #9455308. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455308.

What is the moon phase in Nuka Passage, AK tonight?

Tonight the moon over Nuka Passage, AK is First Quarter (38% illuminated). This places Nuka Passage, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA