Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Port Graham, AK.
Next low tide (tomorrow) : 5:13 am (1.0 ft)
Next high tide : in 5h 51m at 10:17 pm (16.0 ft)
Sunset today : 11:17 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:1917.73:2118.59:071.09:29-1.08:137:40Full Moon1Fri
2Sat3:5117.73:4818.59:371.510:00-1.08:157:37Full Moon2Sat
3Sun4:2417.24:1518.210:072.210:31-0.58:187:34Waning Gibbous3Sun
4Mon4:5816.54:4417.610:383.311:050.28:207:31Waning Gibbous4Mon
5Tue5:3515.45:1516.811:114.511:421.38:227:28Waning Gibbous5Tue
6Wed6:1714.25:5115.711:485.78:257:25Waning Gibbous6Wed
7Thu7:1013.16:3914.612:272.412:366.98:277:22Third Quarter7Thu
8Fri8:2112.37:4913.61:253.41:467.78:297:19Third Quarter8Fri
9Sat9:4612.59:2313.32:413.93:167.68:327:16Third Quarter9Sat
10Sun10:5913.710:5214.14:043.64:426.28:347:13Waning Crescent10Sun
11Mon11:5315.45:142.65:483.98:367:10Waning Crescent11Mon
12Tue12:0115.712:3817.36:091.36:401.28:397:08Waning Crescent12Tue
13Wed12:5717.41:1919.26:560.17:26-1.38:417:05Waning Crescent13Wed
14Thu1:4818.91:5920.87:41-0.78:11-3.38:447:02New Moon14Thu
15Fri2:3620.02:3921.88:24-1.08:54-4.78:466:59New Moon15Fri
16Sat3:2320.43:2022.29:06-0.89:38-5.18:486:56New Moon16Sat
17Sun4:0920.24:0121.99:49-0.110:22-4.58:516:53Waxing Crescent17Sun
18Mon4:5619.34:4420.810:331.111:08-3.28:536:51Waxing Crescent18Mon
19Tue5:4618.05:2919.211:202.711:58-1.38:566:48Waxing Crescent19Tue
20Wed6:4016.46:2017.112:124.48:586:45First Quarter20Wed
21Thu7:4314.97:2115.112:530.81:135.99:006:42First Quarter21Thu
22Fri8:5814.08:4113.52:002.72:316.89:036:40First Quarter22Fri
23Sat10:1713.910:1413.03:193.94:046.69:056:37First Quarter23Sat
24Sun11:2314.511:3413.44:414.25:245.49:086:34Waxing Gibbous24Sun
25Mon12:1115.35:424.06:173.99:106:31Waxing Gibbous25Mon
26Tue12:3014.212:4816.16:273.76:572.59:136:29Waxing Gibbous26Tue
27Wed1:1415.11:2016.97:033.37:311.29:156:26Waxing Gibbous27Wed
28Thu1:5115.91:4817.67:353.08:020.09:186:24Full Moon28Thu
29Fri2:2616.62:1718.28:062.98:33-0.89:206:21Full Moon29Fri
30Sat3:0017.12:4618.68:382.89:05-1.39:236:18Full Moon30Sat
31Sun2:3417.32:1618.78:103.08:37-1.48:255:16Full Moon31Sun
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 1:45 am — 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 Waning Crescent (28% illuminated). This places Port Graham, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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