Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 2h 58m at 12:46 am (2.6 ft)
Next high tide : 6:55 am (15.8 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:5416.72:2715.88:04-0.28:091.66:0610:02Full Moon1Mon
2Tue2:2417.23:0216.38:36-1.18:411.56:0310:04Full Moon2Tue
3Wed2:5417.63:3616.69:08-1.69:141.66:0110:07Full Moon3Wed
4Thu3:2317.84:1016.69:40-1.99:471.95:5810:09Full Moon4Thu
5Fri3:5317.64:4516.310:12-1.710:212.55:5610:11Waning Gibbous5Fri
6Sat4:2417.25:2215.610:46-1.310:563.35:5310:14Waning Gibbous6Sat
7Sun4:5716.66:0114.811:22-0.511:344.25:5110:16Waning Gibbous7Sun
8Mon5:3315.76:4414.012:010.45:4810:18Waning Gibbous8Mon
9Tue6:1514.67:3613.312:185.112:461.35:4610:21Third Quarter9Tue
10Wed7:0813.68:3713.01:125.71:422.25:4310:23Third Quarter10Wed
11Thu8:1812.89:4413.42:205.92:482.75:4110:25Third Quarter11Thu
12Fri9:4112.610:4614.33:375.33:592.85:3910:28Third Quarter12Fri
13Sat11:0113.411:4115.84:503.85:062.35:3610:30Waning Crescent13Sat
14Sun12:0914.75:521.66:041.55:3410:32Waning Crescent14Sun
15Mon12:3017.41:0716.26:45-0.76:560.65:3210:35Waning Crescent15Mon
16Tue1:1618.92:0017.67:34-2.97:45-0.15:3010:37New Moon16Tue
17Wed2:0120.12:5118.68:21-4.68:32-0.55:2810:39New Moon17Wed
18Thu2:4620.93:4019.19:07-5.69:19-0.55:2510:41New Moon18Thu
19Fri3:3221.14:2819.19:53-5.910:05-0.15:2310:43Waxing Crescent19Fri
20Sat4:1820.65:1718.610:39-5.310:530.85:2110:46Waxing Crescent20Sat
21Sun5:0519.56:0717.611:26-4.011:441.95:1910:48Waxing Crescent21Sun
22Mon5:5417.97:0016.412:16-2.35:1710:50Waxing Crescent22Mon
23Tue6:4816.07:5815.412:393.11:10-0.45:1610:52First Quarter23Tue
24Wed7:5114.29:0114.61:424.12:101.45:1410:54First Quarter24Wed
25Thu9:0412.810:0514.32:554.63:152.85:1210:56First Quarter25Thu
26Fri10:2512.211:0514.44:144.44:233.65:1010:58First Quarter26Fri
27Sat11:3812.411:5514.85:253.55:253.95:0811:00Waxing Gibbous27Sat
28Sun12:3613.06:192.46:153.85:0711:01Waxing Gibbous28Sun
29Mon12:3715.31:2413.77:021.26:583.65:0511:03Waxing Gibbous29Mon
30Tue1:1315.92:0514.57:380.27:363.35:0411:05Waxing Gibbous30Tue
31Wed1:4716.52:4315.28:12-0.78:133.15:0211:07Full Moon31Wed
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 3:50 am — 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 transitional phase. Tonight's moon is 29% 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 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 Waxing Crescent (29% illuminated). This places Port Graham, 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