Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 3h 44m at 5:08 pm (5.8 ft)
Next high tide : 11:23 pm (16.7 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 - Jul 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:4215.93:0914.58:26-0.68:235.24:5711:25Full Moon1Fri
2Sat2:2216.43:4515.19:01-1.29:024.74:5811:24Full Moon2Sat
3Sun3:0216.84:2115.59:36-1.79:404.35:0011:23Full Moon3Sun
4Mon3:4117.14:5515.710:11-2.010:193.95:0111:22Full Moon4Mon
5Tue4:1917.05:3015.710:46-2.010:583.75:0211:21Waning Gibbous5Tue
6Wed4:5816.66:0415.711:22-1.611:393.65:0411:20Waning Gibbous6Wed
7Thu5:3915.96:4015.611:59-0.95:0511:19Waning Gibbous7Thu
8Fri6:2414.97:1815.612:243.512:380.25:0711:18Third Quarter8Fri
9Sat7:1713.88:0115.61:153.41:221.65:0811:16Third Quarter9Sat
10Sun8:2112.88:4915.72:133.12:143.15:1011:15Third Quarter10Sun
11Mon9:3912.29:4616.03:192.53:154.45:1211:14Third Quarter11Mon
12Tue11:0412.310:4816.44:321.64:275.35:1311:12Waning Crescent12Tue
13Wed12:2313.25:420.25:405.55:1511:11Waning Crescent13Wed
14Thu1:2914.56:45-1.46:464.95:1711:09Waning Crescent14Thu
15Fri12:5518.12:2515.87:41-2.87:443.95:1911:07New Moon15Fri
16Sat1:5319.03:1416.98:31-4.08:372.85:2111:06New Moon16Sat
17Sun2:4719.73:5917.79:18-4.79:271.95:2311:04New Moon17Sun
18Mon3:3819.94:4218.110:02-4.710:141.35:2411:02Waxing Crescent18Mon
19Tue4:2519.55:2218.110:44-4.111:001.15:2611:00Waxing Crescent19Tue
20Wed5:1118.56:0117.711:25-2.911:461.45:2910:58Waxing Crescent20Wed
21Thu5:5717.06:3917.112:04-1.25:3110:56Waxing Crescent21Thu
22Fri6:4315.37:1716.212:331.912:440.85:3310:54First Quarter22Fri
23Sat7:3413.57:5715.21:232.71:252.95:3510:52First Quarter23Sat
24Sun8:3411.98:4014.32:183.42:114.95:3710:50First Quarter24Sun
25Mon9:5010.99:3213.73:233.93:076.65:3910:48First Quarter25Mon
26Tue11:2110.810:3413.44:394.04:187.75:4110:46Waxing Gibbous26Tue
27Wed12:4011.45:543.45:367.95:4310:43Waxing Gibbous27Wed
28Thu1:3612.56:512.46:397.35:4610:41Waxing Gibbous28Thu
29Fri12:3714.42:1813.57:351.37:286.45:4810:39Waxing Gibbous29Fri
30Sat1:2715.42:5314.68:120.18:095.35:5010:37Full Moon30Sat
31Sun2:1016.43:2615.58:46-1.08:474.15:5210:34Full Moon31Sun
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 8:15 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