Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 5:13 am (1.0 ft)
Next high tide (tomorrow) : in 30m 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 - Jun 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:5515.06:25-1.06:272.75:0111:08Waxing Gibbous1Tue
2Wed12:4418.31:5116.07:17-2.57:212.45:0011:10Full Moon2Wed
3Thu1:3419.02:4316.98:06-3.68:102.04:5811:11Full Moon3Thu
4Fri2:2119.43:3017.48:51-4.28:571.84:5711:13Full Moon4Fri
5Sat3:0719.44:1417.59:34-4.39:421.94:5611:14Full Moon5Sat
6Sun3:5119.04:5717.310:16-3.810:262.14:5511:16Waning Gibbous6Sun
7Mon4:3418.15:3916.810:57-2.811:102.64:5411:17Waning Gibbous7Mon
8Tue5:1617.06:2016.011:38-1.611:563.34:5311:18Waning Gibbous8Tue
9Wed6:0015.67:0315.212:19-0.14:5311:20Waning Gibbous9Wed
10Thu6:4614.07:4714.512:454.01:021.44:5211:21Third Quarter10Thu
11Fri7:3912.68:3313.91:394.51:482.94:5111:22Third Quarter11Fri
12Sat8:4111.59:2313.62:394.82:394.34:5111:23Third Quarter12Sat
13Sun9:5510.910:1513.73:464.63:385.24:5011:24Third Quarter13Sun
14Mon11:1111.111:0614.14:533.94:405.84:5011:24Waning Crescent14Mon
15Tue12:1611.85:502.85:395.84:5011:25Waning Crescent15Tue
16Wed1:1012.86:381.56:315.44:4911:26Waning Crescent16Wed
17Thu12:3915.71:5613.97:210.17:184.84:4911:26Waning Crescent17Thu
18Fri1:2316.62:3914.98:01-1.28:024.14:4911:27New Moon18Fri
19Sat2:0617.53:1915.98:40-2.48:443.34:4911:27New Moon19Sat
20Sun2:4918.23:5816.69:18-3.39:262.64:4911:27New Moon20Sun
21Mon3:3218.64:3717.19:58-3.810:092.14:5011:28Waxing Crescent21Mon
22Tue4:1518.65:1717.410:38-3.810:541.84:5011:28Waxing Crescent22Tue
23Wed5:0018.25:5817.411:19-3.311:411.74:5011:28Waxing Crescent23Wed
24Thu5:4817.36:4217.212:03-2.24:5111:28Waxing Crescent24Thu
25Fri6:4116.07:2817.012:331.812:50-0.84:5111:28First Quarter25Fri
26Sat7:4214.58:2016.61:312.01:430.94:5211:27First Quarter26Sat
27Sun8:5413.39:1816.42:372.02:422.64:5311:27First Quarter27Sun
28Mon10:1512.810:2016.43:491.73:493.94:5411:27Waxing Gibbous28Mon
29Tue11:3713.111:2416.75:040.85:004.54:5411:26Waxing Gibbous29Tue
30Wed12:4813.96:11-0.36:084.54:5511:26Waxing Gibbous30Wed
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