Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 4h 08m at 7:35 pm (5.8 ft)
Next high tide (tomorrow) : 1:36 am (15.7 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:53 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jul 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:0512.310:1416.23:462.43:434.14:5711:25Third Quarter1Wed
2Thu11:2712.711:1316.94:561.14:524.84:5811:24Waning Crescent2Thu
3Fri12:4013.76:02-0.56:004.94:5911:24Waning Crescent3Fri
4Sat12:1217.71:4314.97:01-2.07:024.45:0011:23Waning Crescent4Sat
5Sun1:1018.52:3816.17:54-3.47:583.75:0111:22New Moon5Sun
6Mon2:0619.23:2817.08:44-4.38:502.85:0311:21New Moon6Mon
7Tue2:5919.64:1317.59:31-4.79:392.25:0411:20New Moon7Tue
8Wed3:4919.64:5717.710:15-4.510:261.95:0611:18Waxing Crescent8Wed
9Thu4:3719.05:3817.610:58-3.811:131.95:0711:17Waxing Crescent9Thu
10Fri5:2317.96:1917.111:39-2.55:0911:16Waxing Crescent10Fri
11Sat6:0916.46:5816.412:012.212:20-0.85:1011:15Waxing Crescent11Sat
12Sun6:5714.67:3815.612:502.71:011.15:1211:13First Quarter12Sun
13Mon7:5012.98:1914.81:423.31:443.05:1411:12First Quarter13Mon
14Tue8:5311.59:0414.12:403.82:314.95:1611:10First Quarter14Tue
15Wed10:1010.89:5513.73:474.03:286.45:1711:08First Quarter15Wed
16Thu11:3510.810:5213.74:593.74:377.35:1911:07Waxing Gibbous16Thu
17Fri12:4711.66:053.05:467.55:2111:05Waxing Gibbous17Fri
18Sat1:4112.56:572.06:457.05:2311:03Waxing Gibbous18Sat
19Sun12:4414.72:2413.67:400.87:336.25:2511:01Waxing Gibbous19Sun
20Mon1:3215.63:0114.68:18-0.38:155.35:2710:59Full Moon20Mon
21Tue2:1616.53:3515.48:53-1.48:554.25:2910:57Full Moon21Tue
22Wed2:5717.34:0816.29:27-2.29:333.35:3110:55Full Moon22Wed
23Thu3:3617.84:4016.710:01-2.710:112.55:3310:53Full Moon23Thu
24Fri4:1517.95:1217.110:35-2.810:502.05:3510:51Waning Gibbous24Fri
25Sat4:5517.65:4517.311:10-2.311:311.65:3810:49Waning Gibbous25Sat
26Sun5:3716.96:1917.311:46-1.35:4010:47Waning Gibbous26Sun
27Mon6:2315.76:5617.112:151.512:250.25:4210:45Third Quarter27Mon
28Tue7:1614.37:3816.71:051.61:092.15:4410:43Third Quarter28Tue
29Wed8:2212.98:3016.32:031.82:014.05:4610:40Third Quarter29Wed
30Thu9:4512.09:3315.93:131.93:085.75:4910:38Third Quarter30Thu
31Fri11:2012.210:4816.04:331.54:296.65:5110:36Waning Crescent31Fri
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 10:35 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 96% 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 (96% 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