Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 2h 47m at 10:43 pm (0.5 ft)
Next high tide (tomorrow) : 4:55 am (19.3 ft)
Sunset today : 11:06 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Dec 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:3414.19:3412.02:344.83:406.49:384:14First Quarter1Sat
2Sun10:2214.610:4612.63:405.14:405.09:404:13Waxing Gibbous2Sun
3Mon10:5815.411:4013.54:345.15:223.59:414:12Waxing Gibbous3Mon
4Tue11:3416.25:165.05:582.09:434:11Waxing Gibbous4Tue
5Wed12:2214.512:0417.15:584.86:340.69:454:10Waxing Gibbous5Wed
6Thu1:0415.412:4017.86:344.67:10-0.59:474:10Full Moon6Thu
7Fri1:4016.21:1018.57:104.47:40-1.49:484:09Full Moon7Fri
8Sat2:1616.81:4618.97:464.38:16-2.09:504:08Full Moon8Sat
9Sun2:5817.02:2219.18:224.38:52-2.29:514:08Full Moon9Sun
10Mon3:3417.03:0418.99:044.59:34-2.19:534:07Waning Gibbous10Mon
11Tue4:1616.73:4018.49:404.810:16-1.59:544:07Waning Gibbous11Tue
12Wed4:5816.34:2817.410:285.210:58-0.79:554:07Waning Gibbous12Wed
13Thu5:5215.85:2216.211:225.611:520.49:564:06Waning Gibbous13Thu
14Fri6:4615.56:2214.912:225.89:584:06Third Quarter14Fri
15Sat7:4015.67:4013.912:521.61:405.49:594:06Third Quarter15Sat
16Sun8:4616.09:1013.71:522.72:584.39:594:06Third Quarter16Sun
17Mon9:4016.910:2814.33:043.44:102.510:004:06Waning Crescent17Mon
18Tue10:3417.911:3415.34:103.85:100.510:014:06Waning Crescent18Tue
19Wed11:2818.95:103.86:04-1.310:024:07Waning Crescent19Wed
20Thu12:3416.412:1619.75:583.66:46-2.610:024:07New Moon20Thu
21Fri1:2817.412:5820.26:523.47:34-3.510:034:08New Moon21Fri
22Sat2:1618.01:4620.47:403.38:16-3.710:034:08New Moon22Sat
23Sun2:5818.22:2820.18:223.28:58-3.410:044:09New Moon23Sun
24Mon3:4018.13:1019.49:043.59:40-2.610:044:10Waxing Crescent24Mon
25Tue4:2217.63:5218.49:523.910:22-1.410:044:10Waxing Crescent25Tue
26Wed5:0416.84:3417.010:344.510:580.010:044:11Waxing Crescent26Wed
27Thu5:4616.05:2215.411:225.211:401.610:044:12Waxing Crescent27Thu
28Fri6:2815.26:1013.812:165.810:044:13First Quarter28Fri
29Sat7:1614.57:1012.512:283.21:106.210:044:15First Quarter29Sat
30Sun8:0414.28:2211.61:164.62:226.110:044:16First Quarter30Sun
31Mon8:5814.29:4611.42:165.83:345.310:034:17First Quarter31Mon
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 1:49 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 spring phase. Tonight's moon is 8% 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 Waxing Crescent (8% 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