Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 5h 36m at 9:31 am (-1.5 ft)
Next high tide : 4:14 pm (15.4 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:56 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Aug 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:2318.95:0918.510:36-3.510:560.25:5210:34Waning Gibbous1Wed
2Thu5:0518.45:4418.611:13-2.611:400.05:5510:32Waning Gibbous2Thu
3Fri5:5117.36:2118.411:52-1.15:5710:29Waning Gibbous3Fri
4Sat6:4115.87:0117.812:270.212:340.95:5910:27Third Quarter4Sat
5Sun7:4014.07:4817.01:210.71:223.16:0110:24Third Quarter5Sun
6Mon8:5512.68:4716.12:251.42:215.26:0410:22Third Quarter6Mon
7Tue10:3011.910:0215.53:431.83:386.76:0610:19Waning Crescent7Tue
8Wed12:0412.65:101.55:097.06:0810:17Waning Crescent8Wed
9Thu1:1413.86:260.46:276.16:1110:14Waning Crescent9Thu
10Fri12:3816.42:0615.27:23-0.87:274.76:1310:11Waning Crescent10Fri
11Sat1:3717.42:4816.48:09-1.98:153.26:1510:09New Moon11Sat
12Sun2:2618.23:2417.38:49-2.68:562.06:1810:06New Moon12Sun
13Mon3:0918.63:5717.89:24-2.89:351.06:2010:03New Moon13Mon
14Tue3:4818.64:2718.19:57-2.610:110.56:2210:01New Moon14Tue
15Wed4:2418.24:5618.010:28-1.810:460.56:259:58Waxing Crescent15Wed
16Thu4:5917.35:2317.610:58-0.611:210.86:279:55Waxing Crescent16Thu
17Fri5:3516.25:4916.911:290.911:561.56:299:52Waxing Crescent17Fri
18Sat6:1114.76:1716.111:592.76:329:50Waxing Crescent18Sat
19Sun6:5213.26:4715.112:342.512:314.66:349:47First Quarter19Sun
20Mon7:4311.77:2414.11:173.61:086.46:369:44First Quarter20Mon
21Tue8:5910.58:1713.22:144.62:018.06:389:41First Quarter21Tue
22Wed10:5410.39:3912.73:395.13:319.06:419:39First Quarter22Wed
23Thu12:2511.35:214.45:138.76:439:36Waxing Gibbous23Thu
24Fri1:1512.76:272.96:237.36:459:33Waxing Gibbous24Fri
25Sat12:2214.61:5214.37:111.17:125.56:489:30Waxing Gibbous25Sat
26Sun1:1416.22:2415.97:48-0.77:543.46:509:27Full Moon26Sun
27Mon2:0017.82:5617.48:23-2.18:341.46:529:24Full Moon27Mon
28Tue2:4319.03:2718.88:58-3.19:13-0.46:559:21Full Moon28Tue
29Wed3:2519.83:5919.89:33-3.49:52-1.76:579:18Full Moon29Wed
30Thu4:0719.94:3220.310:09-3.010:33-2.46:599:16Waning Gibbous30Thu
31Fri4:5119.35:0720.310:46-1.811:16-2.37:029:13Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455437)

Common Questions About Port Graham, AK Tides

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What time does the tide turn (slack tide) in Port Graham, AK today?

Slack tide in Port Graham, AK is approximately 12:52 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 Port Graham, AK?

Port Graham, AK is currently in a spring phase. Tonight's moon is 99% 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 near their weekly maximum.

What datum are Port Graham, 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 Port Graham, AK?

Tide predictions for Port Graham, 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 Port Graham, AK?

Tide data for Port Graham, AK is sourced from NOAA Station #9455437. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455437.

What is the moon phase in Port Graham, AK tonight?

Tonight the moon over Port Graham, AK is Full Moon (99% illuminated). This places Port Graham, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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