Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port Graham, AK.
Next low tide (tomorrow) : 12:55 am (3.5 ft)
Next high tide : in 5h 06m at 7:01 pm (15.4 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:01 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:1116.11:2915.77:151.17:250.76:0510:02Waning Crescent1Mon
2Tue1:4617.52:1317.07:54-1.08:040.06:0310:05New Moon2Tue
3Wed2:2018.82:5718.08:32-2.88:43-0.46:0010:07New Moon3Wed
4Thu2:5719.83:4018.59:12-4.29:23-0.35:5810:09New Moon4Thu
5Fri3:3520.44:2518.59:53-4.810:050.25:5510:12Waxing Crescent5Fri
6Sat4:1420.35:1218.010:37-4.710:491.25:5210:14Waxing Crescent6Sat
7Sun4:5719.66:0217.011:23-3.911:372.45:5010:17Waxing Crescent7Sun
8Mon5:4418.36:5915.812:15-2.55:4810:19Waxing Crescent8Mon
9Tue6:3916.78:0514.812:323.81:14-0.95:4510:21First Quarter9Tue
10Wed7:4715.09:1914.31:394.82:220.55:4310:24First Quarter10Wed
11Thu9:1013.810:3414.62:595.23:381.55:4010:26First Quarter11Thu
12Fri10:3813.611:3715.44:274.54:531.75:3810:28Waxing Gibbous12Fri
13Sat11:5414.15:413.05:551.65:3610:30Waxing Gibbous13Sat
14Sun12:2816.312:5414.96:371.36:451.45:3310:33Waxing Gibbous14Sun
15Mon1:1017.11:4415.67:22-0.27:271.35:3110:35Waxing Gibbous15Mon
16Tue1:4717.72:2716.28:02-1.48:051.35:2910:37Full Moon16Tue
17Wed2:2118.03:0716.68:38-2.28:411.55:2710:39Full Moon17Wed
18Thu2:5318.23:4416.79:12-2.59:171.95:2510:42Full Moon18Thu
19Fri3:2518.04:2116.59:46-2.59:522.55:2310:44Full Moon19Fri
20Sat3:5617.64:5716.010:20-2.010:273.25:2110:46Waning Gibbous20Sat
21Sun4:2917.05:3515.310:55-1.311:054.15:1910:48Waning Gibbous21Sun
22Mon5:0316.16:1614.411:32-0.311:455.05:1710:50Waning Gibbous22Mon
23Tue5:4015.07:0113.512:120.85:1510:52Waning Gibbous23Tue
24Wed6:2213.87:5412.812:305.912:571.95:1310:54Third Quarter24Wed
25Thu7:1612.68:5312.51:266.61:512.95:1110:56Third Quarter25Thu
26Fri8:2511.89:5412.82:336.72:543.55:1010:58Third Quarter26Fri
27Sat9:4511.610:5013.63:486.14:003.65:0811:00Third Quarter27Sat
28Sun11:0112.211:3714.84:564.65:023.35:0611:02Waning Crescent28Sun
29Mon12:0513.35:522.75:562.75:0511:04Waning Crescent29Mon
30Tue12:2016.21:0014.76:400.56:452.15:0311:05Waning Crescent30Tue
31Wed1:0217.71:5116.17:25-1.67:311.55:0211:07Waning Crescent31Wed
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 9:58 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 transitional phase. Tonight's moon is 70% 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 shifting between spring and neap.

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 Gibbous (70% illuminated). This places Port Graham, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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