Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 3h 03m at 6:13 am (1.7 ft)
Next high tide : 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 - Apr 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:1218.07:2114.912:012.412:42-0.87:318:50Third Quarter1Mon
2Tue7:0716.48:3413.712:564.01:450.77:288:53Third Quarter2Tue
3Wed8:1814.99:5913.52:065.23:021.87:258:55Third Quarter3Wed
4Thu9:4814.211:1814.23:325.64:272.07:228:57Third Quarter4Thu
5Fri11:1814.55:014.75:421.47:199:00Waning Crescent5Fri
6Sat12:1915.412:2815.56:112.96:380.77:169:02Waning Crescent6Sat
7Sun1:0716.71:2316.57:041.07:230.07:139:05Waning Crescent7Sun
8Mon1:4817.82:1017.37:48-0.68:03-0.37:109:07New Moon8Mon
9Tue2:2518.62:5117.98:28-1.98:39-0.37:079:09New Moon9Tue
10Wed2:5919.03:3018.09:04-2.59:140.07:049:12New Moon10Wed
11Thu3:3119.14:0717.89:40-2.79:480.67:019:14New Moon11Thu
12Fri4:0218.74:4317.210:14-2.310:221.56:589:16Waxing Crescent12Fri
13Sat4:3318.15:1916.210:49-1.510:572.66:569:19Waxing Crescent13Sat
14Sun5:0417.15:5715.111:25-0.411:333.96:539:21Waxing Crescent14Sun
15Mon5:3715.96:3913.812:030.96:509:24Waxing Crescent15Mon
16Tue6:1514.57:3012.612:135.212:472.36:479:26First Quarter16Tue
17Wed7:0213.28:3411.81:026.41:413.56:449:28First Quarter17Wed
18Thu8:0712.19:5011.72:077.12:504.36:419:31First Quarter18Thu
19Fri9:3211.610:5912.43:297.14:064.36:389:33First Quarter19Fri
20Sat10:5612.111:5013.64:516.15:133.76:369:36Waxing Gibbous20Sat
21Sun12:0113.35:524.46:052.86:339:38Waxing Gibbous21Sun
22Mon12:3215.012:5414.76:392.36:491.86:309:40Waxing Gibbous22Mon
23Tue1:0916.61:4016.17:200.17:300.96:279:43Waxing Gibbous23Tue
24Wed1:4618.02:2517.48:00-1.98:100.26:249:45Full Moon24Wed
25Thu2:2419.33:0918.38:40-3.58:51-0.26:229:48Full Moon25Thu
26Fri3:0320.23:5318.79:22-4.59:33-0.26:199:50Full Moon26Fri
27Sat3:4320.64:3818.610:04-4.910:160.36:169:52Waning Gibbous27Sat
28Sun4:2520.35:2618.010:49-4.511:021.16:149:55Waning Gibbous28Sun
29Mon5:1119.46:1717.011:37-3.511:532.36:119:57Waning Gibbous29Mon
30Tue6:0118.07:1515.812:30-2.06:0810:00Third Quarter30Tue
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 9:29 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 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