Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 5h 51m at 9:31 am (-1.5 ft)
Next high tide : 4:14 pm (15.4 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:56 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Apr 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:4219.93:0819.38:45-3.18:58-1.97:308:51Full Moon1Sat
2Sun3:1720.53:5019.29:25-4.09:35-1.27:278:53Full Moon2Sun
3Mon3:5120.54:3118.510:04-4.010:110.17:248:56Waning Gibbous3Mon
4Tue4:2419.95:1217.310:42-3.210:481.77:218:58Waning Gibbous4Tue
5Wed4:5718.75:5415.811:21-1.811:263.47:189:00Waning Gibbous5Wed
6Thu5:3117.26:4114.012:020.17:159:03Waning Gibbous6Thu
7Fri6:0815.47:3712.312:065.312:502.07:129:05Third Quarter7Fri
8Sat6:5413.68:5611.212:556.91:503.77:099:08Third Quarter8Sat
9Sun8:0012.110:3611.12:048.13:174.77:069:10Third Quarter9Sun
10Mon9:4111.311:4811.93:458.34:554.57:039:12Third Quarter10Mon
11Tue11:1711.85:247.25:573.77:019:15Waning Crescent11Tue
12Wed12:3213.012:1912.86:195.56:362.86:589:17Waning Crescent12Wed
13Thu1:0314.21:0414.06:573.67:082.06:559:19Waning Crescent13Thu
14Fri1:3015.51:4315.27:301.77:391.46:529:22Waning Crescent14Fri
15Sat1:5716.72:2016.28:020.08:091.06:499:24New Moon15Sat
16Sun2:2417.72:5716.98:35-1.58:410.96:469:27New Moon16Sun
17Mon2:5318.53:3417.39:08-2.69:151.16:439:29New Moon17Mon
18Tue3:2319.04:1317.29:43-3.19:501.76:419:31New Moon18Tue
19Wed3:5619.14:5316.710:20-3.210:262.56:389:34Waxing Crescent19Wed
20Thu4:3118.85:3715.811:01-2.711:073.66:359:36Waxing Crescent20Thu
21Fri5:1118.06:2814.611:46-1.711:544.86:329:39Waxing Crescent21Fri
22Sat5:5716.87:3113.512:40-0.46:299:41First Quarter22Sat
23Sun6:5715.38:4613.012:535.91:460.86:279:43First Quarter23Sun
24Mon8:1614.010:0613.42:116.43:041.66:249:46First Quarter24Mon
25Tue9:5113.511:1414.53:425.94:231.66:219:48First Quarter25Tue
26Wed11:1714.15:064.25:291.26:189:51Waxing Gibbous26Wed
27Thu12:0615.912:2515.26:101.96:230.86:169:53Waxing Gibbous27Thu
28Fri12:5117.31:2016.27:00-0.37:090.56:139:55Waxing Gibbous28Fri
29Sat1:3018.42:1017.07:45-2.17:510.56:109:58Full Moon29Sat
30Sun2:0819.22:5517.58:26-3.38:310.86:0810:00Full Moon30Sun
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 12:52 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 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