Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 3h 25m at 6:49 pm (6.1 ft)
Next high tide (tomorrow) : 12:54 am (15.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:52 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Oct 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:1512.18:3913.82:103.42:318.08:137:40Third Quarter1Fri
2Sat10:4312.910:1914.13:383.44:097.28:157:37Third Quarter2Sat
3Sun11:4614.611:3915.44:582.45:285.18:177:34Waning Crescent3Sun
4Mon12:3416.55:591.16:262.58:207:31Waning Crescent4Mon
5Tue12:4017.11:1518.46:48-0.27:15-0.28:227:28Waning Crescent5Tue
6Wed1:3318.71:5420.17:32-1.18:00-2.48:247:25New Moon6Wed
7Thu2:2219.82:3221.38:14-1.58:43-4.08:277:22New Moon7Thu
8Fri3:0820.33:1121.98:55-1.29:25-4.78:297:19New Moon8Fri
9Sat3:5420.23:4921.79:36-0.510:07-4.48:317:17Waxing Crescent9Sat
10Sun4:3919.34:2820.910:170.810:50-3.38:347:14Waxing Crescent10Sun
11Mon5:2518.05:0819.410:592.511:36-1.58:367:11Waxing Crescent11Mon
12Tue6:1516.35:5117.511:444.38:397:08Waxing Crescent12Tue
13Wed7:1214.66:4115.412:260.612:376.18:417:05First Quarter13Wed
14Thu8:2313.37:4813.61:252.61:447.48:437:02First Quarter14Thu
15Fri9:4812.89:2012.52:414.13:147.98:466:59First Quarter15Fri
16Sat11:0713.210:5512.64:124.64:537.18:486:57First Quarter16Sat
17Sun12:0014.15:254.35:575.68:506:54Waxing Gibbous17Sun
18Mon12:0113.412:3815.16:123.86:394.08:536:51Waxing Gibbous18Mon
19Tue12:4814.41:0816.16:483.27:122.48:556:48Waxing Gibbous19Tue
20Wed1:2715.41:3517.07:192.87:440.98:586:45Waxing Gibbous20Wed
21Thu2:0316.32:0217.97:492.58:14-0.39:006:43Full Moon21Thu
22Fri2:3717.02:3018.58:192.48:46-1.29:036:40Full Moon22Fri
23Sat3:1217.42:5818.98:512.59:18-1.79:056:37Full Moon23Sat
24Sun3:4717.53:2819.19:242.89:51-1.79:076:34Full Moon24Sun
25Mon4:2317.24:0018.89:573.410:27-1.49:106:32Waning Gibbous25Mon
26Tue5:0216.54:3518.310:334.211:05-0.79:126:29Waning Gibbous26Tue
27Wed5:4415.65:1417.411:135.211:500.39:156:26Waning Gibbous27Wed
28Thu6:3414.66:0116.212:016.19:176:24Third Quarter28Thu
29Fri7:3613.97:0414.912:431.41:046.99:206:21Third Quarter29Fri
30Sat8:4913.88:2813.91:482.42:247.09:226:19Third Quarter30Sat
31Sun10:0214.410:0113.93:032.93:515.99:256:16Third Quarter31Sun
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 9:51 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 91% 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 (91% 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