Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 8:56 am (-1.1 ft)
Next high tide : in 3h 52m at 2:17 am (16.2 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:54 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Mar 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:2918.75:0615.710:46-0.510:492.58:026:36Waxing Crescent1Sun
2Mon5:0418.05:5614.111:310.511:314.47:596:39First Quarter2Mon
3Tue5:4617.07:0412.512:281.67:566:41First Quarter3Tue
4Wed6:4315.78:4011.612:266.21:442.57:536:44First Quarter4Wed
5Thu8:0714.710:2512.31:497.53:202.57:506:46First Quarter5Thu
6Fri9:4814.811:3614.03:337.44:461.37:476:48Waxing Gibbous6Fri
7Sat11:1116.05:005.75:47-0.47:456:51Waxing Gibbous7Sat
8Sun12:2615.91:1417.67:023.47:35-1.88:427:53Waxing Gibbous8Sun
9Mon2:0817.62:0618.87:511.18:16-2.78:397:56Full Moon9Mon
10Tue2:4519.02:5219.68:34-0.98:54-3.18:367:58Full Moon10Tue
11Wed3:2020.03:3419.89:14-2.39:30-2.78:338:00Full Moon11Wed
12Thu3:5320.44:1419.49:53-2.910:05-1.88:308:03Full Moon12Thu
13Fri4:2520.24:5418.410:31-2.710:39-0.38:278:05Waning Gibbous13Fri
14Sat4:5619.55:3217.011:08-1.811:131.58:248:08Waning Gibbous14Sat
15Sun5:2618.36:1315.211:46-0.411:493.58:218:10Waning Gibbous15Sun
16Mon5:5816.86:5813.412:271.38:188:12Third Quarter16Mon
17Tue6:3315.27:5611.712:265.41:153.18:158:15Third Quarter17Tue
18Wed7:1713.59:2610.61:137.22:214.68:128:17Third Quarter18Wed
19Thu8:2712.211:2210.82:248.54:045.28:098:20Third Quarter19Thu
20Fri10:1511.74:148.85:434.58:068:22Third Quarter20Fri
21Sat12:2911.911:46 AM12.55:507.66:333.28:038:24Waning Crescent21Sat
22Sun1:0713.212:4213.86:415.87:082.08:008:27Waning Crescent22Sun
23Mon1:3614.61:2515.27:183.97:380.97:578:29Waning Crescent23Mon
24Tue2:0315.92:0316.47:521.98:070.07:548:31New Moon24Tue
25Wed2:3017.22:4017.48:250.18:37-0.57:518:34New Moon25Wed
26Thu2:5718.33:1718.18:58-1.49:09-0.77:488:36New Moon26Thu
27Fri3:2519.23:5418.39:32-2.59:42-0.37:468:39New Moon27Fri
28Sat3:5519.74:3318.010:08-3.010:160.57:438:41Waxing Crescent28Sat
29Sun4:2719.75:1417.210:46-2.910:531.77:408:43Waxing Crescent29Sun
30Mon5:0219.25:5915.911:28-2.211:343.17:378:46Waxing Crescent30Mon
31Tue5:4218.26:5314.312:16-0.97:348:48Waxing Crescent31Tue
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 5:36 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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