Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 8:10 pm (2.3 ft)
Next high tide : in 5h 50m at 2:40 pm (17.1 ft)
Sunset today : 10:08 pm
Sunrise tomorrow : 6:16 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:2412.37:2211.612:153.74:068:01First Quarter1Thu
2Fri6:4311.48:3211.912:497.61:284.24:048:04First Quarter2Fri
3Sat8:1311.29:2412.82:196.92:384.24:018:06First Quarter3Sat
4Sun9:2711.910:0313.93:275.43:323.83:588:09Waxing Gibbous4Sun
5Mon10:2312.910:3715.14:143.64:153.33:568:11Waxing Gibbous5Mon
6Tue11:0914.111:0816.34:531.74:542.83:538:13Waxing Gibbous6Tue
7Wed11:5215.211:4117.55:29-0.15:312.43:518:16Waxing Gibbous7Wed
8Thu12:3416.16:05-1.76:092.23:488:18Full Moon8Thu
9Fri12:1618.41:1616.86:42-3.06:482.13:468:20Full Moon9Fri
10Sat12:5219.11:5817.07:21-3.87:282.33:448:23Full Moon10Sat
11Sun1:3119.42:4216.88:02-4.08:102.73:418:25Waning Gibbous11Sun
12Mon2:1319.13:2916.38:46-3.78:553.33:398:27Waning Gibbous12Mon
13Tue2:5818.44:2115.69:33-2.89:464.13:378:30Waning Gibbous13Tue
14Wed3:4917.25:1814.810:27-1.610:464.73:348:32Third Quarter14Wed
15Thu4:4915.76:2214.511:26-0.311:575.03:328:34Third Quarter15Thu
16Fri6:0114.37:2914.612:330.83:308:36Third Quarter16Fri
17Sat7:2513.58:3215.21:174.51:421.73:288:39Third Quarter17Sat
18Sun8:4913.49:2616.02:363.22:492.13:268:41Waning Crescent18Sun
19Mon10:0114.010:1416.93:421.43:472.43:238:43Waning Crescent19Mon
20Tue11:0114.710:5717.74:36-0.34:382.53:218:45Waning Crescent20Tue
21Wed11:5315.411:3818.15:23-1.75:242.73:198:47Waning Crescent21Wed
22Thu12:3916.06:05-2.66:072.83:188:49New Moon22Thu
23Fri12:1618.31:2216.26:45-3.06:473.13:168:51New Moon23Fri
24Sat12:5418.22:0316.27:23-3.07:273.43:148:53New Moon24Sat
25Sun1:3217.82:4215.98:01-2.58:063.83:128:55Waxing Crescent25Sun
26Mon2:0917.23:2215.38:39-1.88:464.43:108:57Waxing Crescent26Mon
27Tue2:4716.34:0314.69:18-0.89:275.03:098:59Waxing Crescent27Tue
28Wed3:2615.34:4613.89:580.210:135.63:079:01Waxing Crescent28Wed
29Thu4:0914.15:3113.210:411.411:056.13:059:03First Quarter29Thu
30Fri4:5912.96:2012.911:282.43:049:05First Quarter30Fri
31Sat6:0011.87:1112.912:056.212:193.43:029:06First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455437)

Common Questions About Port Graham, AK Tides

Show All
What time does the tide turn (slack tide) in Port Graham, AK today?

Slack tide in Port Graham, AK is approximately 5:25 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 1% 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 New Moon (1% 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