Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 5:08 pm (5.8 ft)
Next high tide : in 3h 04m at 11:52 am (12.5 ft)
Sunset today : 11:16 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Nov 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:0213.76:2713.312:052.812:307.38:285:13First Quarter1Sun
2Mon8:1213.17:4712.21:084.21:507.68:315:10First Quarter2Mon
3Tue9:2213.39:1712.02:225.03:187.08:335:08First Quarter3Tue
4Wed10:1714.010:3012.63:345.24:265.78:365:05Waxing Gibbous4Wed
5Thu10:5814.911:2413.64:305.05:134.08:385:03Waxing Gibbous5Thu
6Fri11:3315.95:134.65:502.48:415:00Waxing Gibbous6Fri
7Sat12:0814.712:0417.05:504.16:240.98:434:58Waxing Gibbous7Sat
8Sun12:4715.812:3617.96:263.76:58-0.58:464:56Full Moon8Sun
9Mon1:2516.61:0818.87:013.47:32-1.68:484:53Full Moon9Mon
10Tue2:0317.31:4219.37:373.28:08-2.38:504:51Full Moon10Tue
11Wed2:4217.62:1719.68:143.28:45-2.68:534:49Full Moon11Wed
12Thu3:2117.52:5519.58:523.59:24-2.48:554:47Waning Gibbous12Thu
13Fri4:0317.23:3618.99:333.910:06-1.88:584:45Waning Gibbous13Fri
14Sat4:4816.64:2118.010:194.610:53-0.89:004:43Waning Gibbous14Sat
15Sun5:3915.95:1416.611:125.211:470.49:034:40Third Quarter15Sun
16Mon6:3715.46:1915.212:165.69:054:38Third Quarter16Mon
17Tue7:4115.47:4014.212:481.71:325.59:074:36Third Quarter17Tue
18Wed8:4715.89:0714.01:562.72:534.49:104:35Third Quarter18Wed
19Thu9:4816.710:2714.73:063.24:062.79:124:33Waning Crescent19Thu
20Fri10:4217.811:3215.74:123.35:070.79:144:31Waning Crescent20Fri
21Sat11:3018.95:093.25:58-1.19:174:29Waning Crescent21Sat
22Sun12:2816.812:1519.76:003.06:44-2.49:194:27New Moon22Sun
23Mon1:1717.712:5820.26:472.87:27-3.29:214:26New Moon23Mon
24Tue2:0318.21:4020.47:312.88:08-3.49:234:24New Moon24Tue
25Wed2:4618.32:2120.08:132.98:48-3.09:264:22New Moon25Wed
26Thu3:2818.03:0119.38:553.39:28-2.29:284:21Waxing Crescent26Thu
27Fri4:0917.53:4018.39:373.910:07-1.09:304:20Waxing Crescent27Fri
28Sat4:5016.64:2016.910:194.710:470.49:324:18Waxing Crescent28Sat
29Sun5:3315.75:0315.411:055.511:291.99:344:17Waxing Crescent29Sun
30Mon6:1814.95:5213.911:576.29:364:16First Quarter30Mon
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 2:30 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 18% 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 Waning Crescent (18% 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