Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 5:57 pm (6.1 ft)
Next high tide : in 5h 38m at 12:46 pm (12.2 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 4:52 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jan 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:4017.24:2816.810:223.510:400.010:034:19Waning Gibbous1Tue
2Wed5:1616.95:1015.711:043.711:161.110:024:20Waning Gibbous2Wed
3Thu5:5216.65:5814.511:523.910:024:22Third Quarter3Thu
4Fri6:3416.37:0413.312:042.512:524.110:014:23Third Quarter4Fri
5Sat7:2816.18:2212.612:584.01:583.810:004:25Third Quarter5Sat
6Sun8:3416.39:5212.91:585.13:163.09:594:27Third Quarter6Sun
7Mon9:4016.811:1014.03:165.74:281.59:584:28Waning Crescent7Mon
8Tue10:4617.84:345.45:34-0.49:574:30Waning Crescent8Tue
9Wed12:1015.611:46 AM19.15:344.46:28-2.39:564:32Waning Crescent9Wed
10Thu1:0417.212:4620.36:343.07:16-3.89:554:34New Moon10Thu
11Fri1:5218.71:3421.17:221.78:04-4.79:544:36New Moon11Fri
12Sat2:4019.72:2821.48:100.78:46-4.99:534:38New Moon12Sat
13Sun3:2220.33:1021.18:580.19:28-4.39:514:40Waxing Crescent13Sun
14Mon4:0420.33:5820.19:460.010:10-3.19:504:42Waxing Crescent14Mon
15Tue4:4019.74:4018.510:280.510:46-1.39:484:45Waxing Crescent15Tue
16Wed5:2218.85:2816.611:161.411:280.89:474:47Waxing Crescent16Wed
17Thu6:0417.66:2214.612:102.69:454:49First Quarter17Thu
18Fri6:4616.37:2212.812:163.01:043.79:434:51First Quarter18Fri
19Sat7:4015.28:4011.61:045.12:164.59:424:54First Quarter19Sat
20Sun8:4014.410:1611.42:046.83:404.69:404:56First Quarter20Sun
21Mon9:4614.111:3412.13:227.74:523.99:384:58Waxing Gibbous21Mon
22Tue10:5214.54:407.65:462.89:365:01Waxing Gibbous22Tue
23Wed12:2213.211:46 AM15.35:406.96:281.69:345:03Waxing Gibbous23Wed
24Thu1:0414.412:3416.36:285.87:040.49:325:06Waxing Gibbous24Thu
25Fri1:4015.51:1017.27:044.67:34-0.79:305:08Full Moon25Fri
26Sat2:1016.51:4618.07:403.58:04-1.59:285:11Full Moon26Sat
27Sun2:4017.42:2218.58:162.58:40-2.09:265:13Full Moon27Sun
28Mon3:1018.02:5818.78:521.79:10-2.19:245:16Full Moon28Mon
29Tue3:4018.43:3418.49:281.29:40-1.79:225:18Waning Gibbous29Tue
30Wed4:1018.54:1617.810:041.110:16-0.89:205:21Waning Gibbous30Wed
31Thu4:4018.44:5216.710:401.210:520.59:185:23Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455437)

Common Questions About Port Graham, AK Tides

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

Slack tide in Port Graham, AK is approximately 3:21 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 85% 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 Gibbous (85% 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