Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 11:46 am (-0.7 ft)
Next high tide : in 2h 19m at 5:27 am (15.8 ft)
Sunset today : 11:23 pm
Sunrise tomorrow : 5:00 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Dec 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:3619.25:142.35:59-1.29:374:15Waning Crescent1Sun
2Mon12:2517.312:2020.46:041.96:46-3.09:394:14New Moon2Mon
3Tue1:1718.31:0321.36:511.77:31-4.39:414:13New Moon3Tue
4Wed2:0519.01:4621.67:371.88:15-4.79:434:12New Moon4Wed
5Thu2:5319.12:2921.38:222.28:58-4.39:444:11New Moon5Thu
6Fri3:3918.83:1320.49:062.89:42-3.39:464:10Waxing Crescent6Fri
7Sat4:2518.03:5719.09:523.710:27-1.89:484:09Waxing Crescent7Sat
8Sun5:1317.04:4317.310:414.711:14-0.19:494:09Waxing Crescent8Sun
9Mon6:0515.95:3415.511:355.89:514:08First Quarter9Mon
10Tue7:0014.96:3413.712:051.712:376.59:524:07First Quarter10Tue
11Wed8:0014.47:4712.51:023.31:516.79:534:07First Quarter11Wed
12Thu9:0114.39:1012.02:044.53:106.29:554:07First Quarter12Thu
13Fri9:5514.610:2612.33:105.34:195.19:564:06Waxing Gibbous13Fri
14Sat10:3915.111:2513.04:095.65:093.79:574:06Waxing Gibbous14Sat
15Sun11:1815.84:595.65:502.39:584:06Waxing Gibbous15Sun
16Mon12:1314.011:53 AM16.65:425.56:261.09:594:06Waxing Gibbous16Mon
17Tue12:5514.912:2817.46:215.27:00-0.110:004:06Full Moon17Tue
18Wed1:3415.81:0318.16:594.97:35-1.110:014:06Full Moon18Wed
19Thu2:1216.51:3918.67:374.68:10-1.810:014:07Full Moon19Thu
20Fri2:5016.92:1618.98:154.48:47-2.210:024:07Full Moon20Fri
21Sat3:2817.12:5418.98:534.39:24-2.210:034:07Waning Gibbous21Sat
22Sun4:0717.03:3418.59:344.410:04-1.810:034:08Waning Gibbous22Sun
23Mon4:4816.74:1817.710:184.610:47-1.110:044:09Waning Gibbous23Mon
24Tue5:3216.45:0716.611:074.911:330.010:044:09Waning Gibbous24Tue
25Wed6:2016.16:0515.312:045.110:044:10Third Quarter25Wed
26Thu7:1316.07:1514.112:261.21:104.910:044:11Third Quarter26Thu
27Fri8:1016.18:3813.51:252.52:244.210:044:12Third Quarter27Fri
28Sat9:1016.710:0213.72:313.63:392.810:044:13Waning Crescent28Sat
29Sun10:0917.511:1614.63:394.34:461.010:044:14Waning Crescent29Sun
30Mon11:0518.44:454.45:44-0.710:044:15Waning Crescent30Mon
31Tue12:1815.811:57 AM19.35:434.26:34-2.110:034:17Waning Crescent31Tue
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 8:36 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 79% 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 Waning Gibbous (79% 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