Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide (tomorrow) : 1:27 am (2.7 ft)
Next high tide : in 4h 42m at 7:32 pm (13.4 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:51 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Sep 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:1816.62:5316.68:25-3.38:45-2.17:049:08Full Moon1Mon
2Tue3:0416.93:3117.09:05-3.29:27-2.77:079:06Full Moon2Tue
3Wed3:4816.64:0816.99:44-2.410:09-2.67:099:03Waning Gibbous3Wed
4Thu4:3115.94:4416.410:23-1.110:51-1.87:119:00Waning Gibbous4Thu
5Fri5:1514.75:2115.411:020.611:35-0.57:138:57Waning Gibbous5Fri
6Sat6:0013.35:5914.211:422.57:168:54Third Quarter6Sat
7Sun6:5011.86:4212.812:221.112:274.47:188:51Third Quarter7Sun
8Mon7:5410.57:3711.61:162.81:226.17:208:48Third Quarter8Mon
9Tue9:219.88:5410.72:284.02:377.27:228:45Third Quarter9Tue
10Wed10:589.910:2810.74:024.44:167.37:258:42Waning Crescent10Wed
11Thu12:0310.75:243.85:366.37:278:39Waning Crescent11Thu
12Fri12:4511.66:142.86:245.07:298:36Waning Crescent12Fri
13Sat12:3012.21:1712.56:501.87:013.57:318:33Waning Crescent13Sat
14Sun1:1013.11:4613.47:210.97:342.17:348:30Waning Crescent14Sun
15Mon1:4713.92:1414.37:510.28:070.77:368:27New Moon15Mon
16Tue2:2214.62:4115.08:21-0.38:39-0.37:388:24New Moon16Tue
17Wed2:5715.03:1015.58:52-0.49:12-1.07:408:21New Moon17Wed
18Thu3:3215.13:3915.89:24-0.29:47-1.47:438:18Waxing Crescent18Thu
19Fri4:0914.94:0915.89:570.410:23-1.37:458:15Waxing Crescent19Fri
20Sat4:4714.34:4315.410:321.411:02-0.77:478:12Waxing Crescent20Sat
21Sun5:3013.45:2114.811:122.711:480.27:498:09Waxing Crescent21Sun
22Mon6:2112.46:0613.911:584.17:528:06First Quarter22Mon
23Tue7:2611.47:0712.912:431.312:575.47:548:03First Quarter23Tue
24Wed8:5010.98:2912.21:542.22:176.17:568:01First Quarter24Wed
25Thu10:1911.310:0312.33:202.53:485.77:587:58Waxing Gibbous25Thu
26Fri11:2812.511:2413.24:421.85:094.28:017:55Waxing Gibbous26Fri
27Sat12:2113.85:460.76:102.18:037:52Waxing Gibbous27Sat
28Sun12:2714.31:0515.16:37-0.37:000.18:057:49Waxing Gibbous28Sun
29Mon1:1915.31:4616.17:21-1.07:45-1.68:087:46Full Moon29Mon
30Tue2:0716.02:2316.88:02-1.38:26-2.78:107:43Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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What time does the tide turn (slack tide) in Port Chatham, AK today?

Slack tide in Port Chatham, AK is approximately 10:29 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 Chatham, AK?

Port Chatham, AK is currently in a transitional phase. Tonight's moon is 39% 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 Chatham, 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 Chatham, AK?

Tide predictions for Port Chatham, 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 Chatham, AK?

Tide data for Port Chatham, AK is sourced from NOAA Station #9455428. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455428.

What is the moon phase in Port Chatham, AK tonight?

Tonight the moon over Port Chatham, AK is First Quarter (39% illuminated). This places Port Chatham, 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