Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 5:57 pm (6.1 ft)
Next high tide : in 2h 08m at 12:46 pm (12.2 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 4:52 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Oct 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:4018.43:4119.29:260.69:49-1.78:147:38Full Moon1Mon
2Tue4:1417.94:0918.89:571.410:22-1.18:167:35Waning Gibbous2Tue
3Wed4:4917.14:3818.010:302.510:56-0.28:197:33Waning Gibbous3Wed
4Thu5:2416.15:0817.011:033.811:311.08:217:30Waning Gibbous4Thu
5Fri6:0314.85:4115.811:385.28:237:27Waning Gibbous5Fri
6Sat6:4913.46:2114.512:112.412:196.68:267:24Third Quarter6Sat
7Sun7:4912.37:1513.21:003.71:147.88:287:21Third Quarter7Sun
8Mon9:1011.88:3512.42:054.72:338.48:307:18Third Quarter8Mon
9Tue10:3312.310:1012.53:275.04:077.88:337:15Third Quarter9Tue
10Wed11:3213.511:2613.64:444.55:216.28:357:12Waning Crescent10Wed
11Thu12:1515.05:423.46:134.18:377:09Waning Crescent11Thu
12Fri12:2315.112:5216.76:272.26:551.88:407:06Waning Crescent12Fri
13Sat1:1116.71:2818.47:081.07:36-0.58:427:04Waning Crescent13Sat
14Sun1:5618.22:0419.97:480.28:16-2.58:457:01New Moon14Sun
15Mon2:4019.32:4121.18:27-0.38:57-3.98:476:58New Moon15Mon
16Tue3:2419.83:2021.79:08-0.39:38-4.58:496:55New Moon16Tue
17Wed4:0919.84:0021.79:500.210:22-4.38:526:52Waxing Crescent17Wed
18Thu4:5619.24:4320.910:341.211:09-3.38:546:50Waxing Crescent18Thu
19Fri5:4618.05:3019.511:212.58:576:47Waxing Crescent19Fri
20Sat6:4216.66:2417.712:00-1.712:164.08:596:44First Quarter20Sat
21Sun7:4815.47:3115.812:580.11:215.49:016:41First Quarter21Sun
22Mon9:0514.78:5614.42:081.82:426.09:046:38First Quarter22Mon
23Tue10:2314.910:2914.13:282.84:135.59:066:36First Quarter23Tue
24Wed11:2915.711:4614.74:483.15:304.09:096:33Waxing Gibbous24Wed
25Thu12:2016.65:502.86:262.49:116:30Waxing Gibbous25Thu
26Fri12:4415.51:0117.56:382.57:100.99:146:28Waxing Gibbous26Fri
27Sat1:3116.31:3618.27:182.37:47-0.39:166:25Full Moon27Sat
28Sun2:1217.02:0818.67:532.38:21-1.19:196:23Full Moon28Sun
29Mon2:4817.42:3818.98:262.48:54-1.59:216:20Full Moon29Mon
30Tue3:2317.53:0818.98:592.69:26-1.69:246:17Full Moon30Tue
31Wed3:5717.43:3818.69:323.09:59-1.39:266:15Full Moon31Wed
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 3:21 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 85% 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 (85% 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