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 2h 15m 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 - Sep 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:5911.67:3614.51:233.31:187.07:049:09Third Quarter1Wed
2Thu9:3411.08:5613.92:373.92:408.07:079:06Third Quarter2Thu
3Fri11:1411.810:3214.34:093.64:217.87:099:03Waning Crescent3Fri
4Sat12:2013.45:312.25:436.27:119:00Waning Crescent4Sat
5Sun1:0815.46:300.36:433.87:148:57Waning Crescent5Sun
6Mon12:5417.51:4917.47:17-1.57:331.27:168:54Waning Crescent6Mon
7Tue1:4619.12:2819.28:00-2.88:18-1.17:188:51New Moon7Tue
8Wed2:3520.33:0520.68:40-3.59:02-2.97:208:48New Moon8Wed
9Thu3:2220.93:4321.59:20-3.59:45-3.97:238:45New Moon9Thu
10Fri4:0820.74:2021.610:00-2.610:28-3.97:258:42Waxing Crescent10Fri
11Sat4:5319.74:5821.010:40-1.111:13-3.17:278:39Waxing Crescent11Sat
12Sun5:4018.15:3819.711:220.97:298:36Waxing Crescent12Sun
13Mon6:3116.26:2117.912:00-1.512:073.17:328:33First Quarter13Mon
14Tue7:3114.27:1115.912:530.612:585.47:348:30First Quarter14Tue
15Wed8:4912.68:1914.11:582.52:057.27:368:27First Quarter15Wed
16Thu10:3012.29:5613.13:263.83:398.07:398:25First Quarter16Thu
17Fri11:5412.911:3013.45:073.85:227.37:418:22Waxing Gibbous17Fri
18Sat12:4814.06:143.06:265.87:438:19Waxing Gibbous18Sat
19Sun12:3314.31:2515.06:572.27:084.27:458:16Waxing Gibbous19Sun
20Mon1:1715.41:5416.07:301.47:412.77:488:13Waxing Gibbous20Mon
21Tue1:5316.32:2116.97:580.98:121.37:508:10Full Moon21Tue
22Wed2:2717.02:4517.78:250.58:420.27:528:07Full Moon22Wed
23Thu2:5917.53:1018.38:530.49:12-0.67:548:04Full Moon23Thu
24Fri3:3117.83:3618.69:210.79:43-1.07:578:01Full Moon24Fri
25Sat4:0417.64:0118.69:501.310:14-0.97:597:58Waning Gibbous25Sat
26Sun4:3717.04:2918.310:202.210:46-0.58:017:55Waning Gibbous26Sun
27Mon5:1316.14:5817.710:523.411:220.38:047:52Waning Gibbous27Mon
28Tue5:5214.95:3116.811:264.88:067:49Waning Gibbous28Tue
29Wed6:4013.66:1215.712:041.412:076.18:087:46Third Quarter29Wed
30Thu7:4512.47:1114.612:572.51:057.48:107:43Third Quarter30Thu
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 9:51 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