Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Port Graham, AK.
Next low tide (tomorrow) : in 16m at 8:56 pm (4.7 ft)
Next high tide : 2:57 am (16.6 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:55 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Feb 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:0713.311:4511.42:529.04:504.59:175:24Waning Crescent1Fri
2Sat10:2913.74:279.05:503.29:155:26Waning Crescent2Sat
3Sun12:3712.711:35 AM14.75:378.06:321.79:135:29Waning Crescent3Sun
4Mon1:1414.112:2516.06:256.67:070.19:105:31Waning Crescent4Mon
5Tue1:4615.41:0817.27:055.07:39-1.29:085:34New Moon5Tue
6Wed2:1616.61:4818.37:433.58:10-2.39:055:36New Moon6Wed
7Thu2:4517.72:2619.18:192.08:42-2.99:035:39New Moon7Thu
8Fri3:1418.53:0419.38:550.89:14-2.99:015:41New Moon8Fri
9Sat3:4419.13:4319.09:330.09:48-2.28:585:44Waxing Crescent9Sat
10Sun4:1519.44:2418.110:12-0.310:23-0.98:565:47Waxing Crescent10Sun
11Mon4:4719.25:0916.710:54-0.211:000.98:535:49Waxing Crescent11Mon
12Tue5:2318.76:0014.911:420.511:433.18:505:52First Quarter12Tue
13Wed6:0517.77:0513.112:391.48:485:54First Quarter13Wed
14Thu6:5816.68:3611.912:355.31:512.38:455:57First Quarter14Thu
15Fri8:1115.510:2612.21:487.13:242.58:435:59Waxing Gibbous15Fri
16Sat9:4415.311:4813.63:257.84:541.58:406:02Waxing Gibbous16Sat
17Sun11:1016.14:586.95:59-0.18:376:04Waxing Gibbous17Sun
18Mon12:4315.212:1617.36:055.16:48-1.58:356:07Waxing Gibbous18Mon
19Tue1:2616.71:0818.56:563.27:28-2.58:326:09Full Moon19Tue
20Wed2:0318.01:5319.27:391.58:05-3.08:296:12Full Moon20Wed
21Thu2:3618.92:3319.58:180.28:38-2.98:266:14Full Moon21Thu
22Fri3:0719.33:1019.28:55-0.69:10-2.38:246:17Full Moon22Fri
23Sat3:3619.33:4618.49:30-0.89:41-1.18:216:19Waning Gibbous23Sat
24Sun4:0418.94:2117.210:05-0.410:120.58:186:22Waning Gibbous24Sun
25Mon4:3018.14:5715.710:390.410:422.38:156:24Waning Gibbous25Mon
26Tue4:5717.15:3514.011:151.611:134.38:136:27Waning Gibbous26Tue
27Wed5:2615.96:2112.211:553.011:476.28:106:29Third Quarter27Wed
28Thu5:5914.67:2610.712:464.48:076:32Third Quarter28Thu
29Fri6:4613.49:2110.012:327.92:045.48:046:34Third Quarter29Fri
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 11:56 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 100% 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 Full Moon (100% 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