Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 9:31 am (-1.5 ft)
Next high tide : in 5h 07m at 2:57 am (16.6 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:55 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jan 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:2314.89:3211.41:455.83:094.810:034:18Third Quarter1Tue
2Wed9:1714.510:5511.72:477.14:224.210:034:19Waning Crescent2Wed
3Thu10:1314.73:577.85:213.210:024:20Waning Crescent3Thu
4Fri12:0012.511:07 AM15.25:027.86:072.110:014:22Waning Crescent4Fri
5Sat12:4913.611:55 AM15.95:557.36:471.010:014:24Waning Crescent5Sat
6Sun1:2914.612:3916.76:406.57:23-0.110:004:25New Moon6Sun
7Mon2:0515.51:2117.67:205.67:57-1.19:594:27New Moon7Mon
8Tue2:3916.32:0018.27:584.78:31-1.89:584:29New Moon8Tue
9Wed3:1216.92:3818.68:364.09:04-2.39:574:31New Moon9Wed
10Thu3:4417.43:1618.69:133.39:38-2.29:564:33Waxing Crescent10Thu
11Fri4:1617.63:5518.19:522.910:12-1.79:554:35Waxing Crescent11Fri
12Sat4:4917.74:3617.310:332.710:48-0.69:544:37Waxing Crescent12Sat
13Sun5:2317.65:2316.011:182.711:270.99:524:39Waxing Crescent13Sun
14Mon6:0117.46:1714.512:092.89:514:41First Quarter14Mon
15Tue6:4517.07:2513.212:122.71:092.99:494:43First Quarter15Tue
16Wed7:3816.78:5112.41:064.62:212.89:484:45First Quarter16Wed
17Thu8:4316.510:2712.72:146.23:422.19:464:47Waxing Gibbous17Thu
18Fri9:5716.711:4713.93:377.04:590.89:454:50Waxing Gibbous18Fri
19Sat11:0917.54:576.76:02-0.89:434:52Waxing Gibbous19Sat
20Sun12:4815.412:1318.56:045.56:55-2.39:414:54Full Moon20Sun
21Mon1:3816.91:0919.56:594.17:41-3.49:404:57Full Moon21Mon
22Tue2:2118.01:5920.17:482.78:22-3.99:384:59Full Moon22Tue
23Wed3:0018.82:4420.28:321.79:01-3.99:365:01Full Moon23Wed
24Thu3:3719.23:2619.79:151.09:38-3.19:345:04Waning Gibbous24Thu
25Fri4:1219.14:0718.79:560.910:13-1.99:325:06Waning Gibbous25Fri
26Sat4:4518.64:4717.210:361.310:47-0.19:305:09Waning Gibbous26Sat
27Sun5:1717.85:2715.511:172.011:221.99:285:11Waning Gibbous27Sun
28Mon5:4916.86:1213.612:013.09:265:14Third Quarter28Mon
29Tue6:2215.77:0611.912:504.09:245:16Third Quarter29Tue
30Wed7:0214.78:2310.712:376.11:524.99:225:19Third Quarter30Wed
31Thu7:5413.810:1310.51:317.83:175.29:195:21Third Quarter31Thu
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 6:14 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 100% 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 (100% 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