Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide : 6:12 pm (6.8 ft)
Next high tide : in 1h 41m at 1:11 pm (10.4 ft)
Sunset today : 10:48 pm
Sunrise tomorrow : 5:38 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - May 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:189.811:3711.04:246.44:513.46:0510:02First Quarter1Sat
2Sun11:3210.35:355.15:452.96:0210:05Waxing Gibbous2Sun
3Mon12:1711.712:2411.06:193.66:232.46:0010:07Waxing Gibbous3Mon
4Tue12:4812.41:0511.86:542.16:562.05:5710:09Waxing Gibbous4Tue
5Wed1:1613.21:4312.57:250.77:281.75:5510:12Waxing Gibbous5Wed
6Thu1:4313.92:1913.17:56-0.68:001.55:5210:14Full Moon6Thu
7Fri2:1114.52:5513.58:28-1.58:321.65:5010:16Full Moon7Fri
8Sat2:4014.93:3113.79:00-2.29:061.95:4710:19Full Moon8Sat
9Sun3:1015.04:0913.69:34-2.49:412.45:4510:21Full Moon9Sun
10Mon3:4214.94:4813.210:10-2.310:183.25:4210:23Waning Gibbous10Mon
11Tue4:1714.65:3212.610:49-1.810:584.05:4010:26Waning Gibbous11Tue
12Wed4:5614.06:2211.911:34-1.011:474.95:3810:28Waning Gibbous12Wed
13Thu5:4313.17:2311.312:260.05:3610:30Third Quarter13Thu
14Fri6:4312.18:3311.112:475.61:300.95:3310:32Third Quarter14Fri
15Sat8:0211.39:4411.52:035.72:421.45:3110:35Third Quarter15Sat
16Sun9:3111.110:4612.43:274.93:561.45:2910:37Third Quarter16Sun
17Mon10:5311.611:3813.54:443.25:011.15:2710:39Waning Crescent17Mon
18Tue12:0112.55:461.15:560.85:2510:41Waning Crescent18Tue
19Wed12:2314.612:5913.46:37-1.06:450.55:2310:43Waning Crescent19Wed
20Thu1:0615.61:5114.17:24-2.87:310.55:2110:45New Moon20Thu
21Fri1:4716.22:4014.68:08-3.98:150.75:1910:47New Moon21Fri
22Sat2:2716.43:2614.78:51-4.48:581.25:1710:49New Moon22Sat
23Sun3:0816.24:1114.49:33-4.29:401.95:1510:52New Moon23Sun
24Mon3:4815.74:5613.810:15-3.410:232.85:1310:53Waxing Crescent24Mon
25Tue4:2914.75:4213.010:58-2.211:083.95:1210:55Waxing Crescent25Tue
26Wed5:1113.66:3112.111:43-0.711:584.95:1010:57Waxing Crescent26Wed
27Thu5:5712.37:2611.412:320.85:0810:59First Quarter27Thu
28Fri6:5111.08:2510.912:555.71:272.15:0711:01First Quarter28Fri
29Sat7:5810.19:2710.72:046.02:283.15:0511:03First Quarter29Sat
30Sun9:179.510:2311.03:225.83:323.75:0411:05First Quarter30Sun
31Mon10:349.611:0911.54:364.94:323.95:0311:06Waxing Gibbous31Mon
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 3:41 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 spring phase. Tonight's moon is 87% 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 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 Waxing Gibbous (87% illuminated). This places Port Chatham, 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