Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 4h 34m at 6:19 am (-0.6 ft)
Next high tide : 1:03 pm (13.8 ft)
Sunset today : 11:14 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:4511.810:0211.41:578.02:454.16:0510:02Third Quarter1Mon
2Tue9:1511.211:0512.23:267.84:034.26:0310:05Third Quarter2Tue
3Wed10:4411.611:4913.44:506.65:073.76:0010:07Waning Crescent3Wed
4Thu11:5012.65:484.75:553.05:5810:10Waning Crescent4Thu
5Fri12:2414.712:4213.96:322.56:362.35:5510:12Waning Crescent5Fri
6Sat12:5716.21:2915.27:110.37:161.85:5310:14Waning Crescent6Sat
7Sun1:3017.62:1416.47:49-1.77:551.45:5010:17New Moon7Sun
8Mon2:0518.82:5817.28:28-3.38:351.45:4810:19New Moon8Mon
9Tue2:4219.73:4217.69:09-4.49:161.65:4510:21New Moon9Tue
10Wed3:2220.14:2817.59:51-4.89:592.15:4310:24Waxing Crescent10Wed
11Thu4:0419.95:1716.910:36-4.510:442.95:4110:26Waxing Crescent11Thu
12Fri4:5019.16:0916.011:24-3.611:353.85:3810:28Waxing Crescent12Fri
13Sat5:4017.87:0815.112:18-2.25:3610:31Waxing Crescent13Sat
14Sun6:4016.28:1514.412:344.71:19-0.75:3410:33First Quarter14Sun
15Mon7:5214.69:2514.31:455.32:270.75:3110:35First Quarter15Mon
16Tue9:1613.510:3214.73:085.13:391.65:2910:37First Quarter16Tue
17Wed10:4213.311:2815.54:324.04:472.05:2710:40Waxing Gibbous17Wed
18Thu11:5513.75:402.35:452.35:2510:42Waxing Gibbous18Thu
19Fri12:1516.312:5414.36:340.66:342.55:2310:44Waxing Gibbous19Fri
20Sat12:5517.01:4415.07:18-0.77:162.75:2110:46Waxing Gibbous20Sat
21Sun1:3117.42:2815.57:57-1.77:562.95:1910:48Full Moon21Sun
22Mon2:0617.73:0915.88:34-2.28:343.25:1710:50Full Moon22Mon
23Tue2:3917.73:4715.99:09-2.49:103.55:1510:52Full Moon23Tue
24Wed3:1317.54:2515.79:44-2.29:473.95:1310:54Full Moon24Wed
25Thu3:4717.15:0215.210:19-1.610:244.55:1210:56Waning Gibbous25Thu
26Fri4:2216.55:4214.610:56-0.911:035.15:1010:58Waning Gibbous26Fri
27Sat4:5915.66:2413.811:340.011:455.75:0811:00Waning Gibbous27Sat
28Sun5:3914.67:1013.112:161.05:0711:02Waning Gibbous28Sun
29Mon6:2513.57:5912.712:336.31:021.95:0511:04Third Quarter29Mon
30Tue7:2012.48:5212.71:316.51:532.85:0411:06Third Quarter30Tue
31Wed8:2911.69:4413.12:376.32:493.55:0211:07Third Quarter31Wed
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 9:41 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 10% 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 (10% 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