Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 3h 27m at 6:12 pm (6.8 ft)
Next high tide (tomorrow) : 12:13 am (11.9 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 - Aug 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:2011.56:360.76:355.35:5510:30Waxing Gibbous1Sun
2Mon12:3713.72:0412.67:22-0.97:254.05:5810:28Full Moon2Mon
3Tue1:2914.82:4613.78:05-2.58:122.76:0010:25Full Moon3Tue
4Wed2:1815.73:2514.68:47-3.68:561.46:0210:23Full Moon4Wed
5Thu3:0516.34:0415.39:27-4.39:410.36:0410:20Full Moon5Thu
6Fri3:5116.54:4315.710:08-4.210:26-0.36:0710:18Waning Gibbous6Fri
7Sat4:3816.15:2215.710:49-3.411:13-0.46:0910:15Waning Gibbous7Sat
8Sun5:2715.26:0315.411:32-2.06:1110:13Waning Gibbous8Sun
9Mon6:1913.96:4714.812:04-0.112:17-0.16:1410:10Third Quarter9Mon
10Tue7:1812.47:3614.112:590.51:072.16:1610:08Third Quarter10Tue
11Wed8:3011.18:3413.22:031.32:054.16:1810:05Third Quarter11Wed
12Thu9:5910.49:4512.73:181.83:185.66:2110:02Waning Crescent12Thu
13Fri11:3210.611:0212.64:431.84:436.26:2310:00Waning Crescent13Fri
14Sat12:4411.45:581.16:005.86:259:57Waning Crescent14Sat
15Sun12:1113.01:3612.26:550.26:584.96:279:54Waning Crescent15Sun
16Mon1:0713.52:1813.07:40-0.67:433.86:309:51New Moon16Mon
17Tue1:5314.12:5313.68:17-1.28:222.96:329:49New Moon17Tue
18Wed2:3314.53:2414.08:50-1.68:572.16:349:46New Moon18Wed
19Thu3:0814.73:5214.29:21-1.79:311.56:379:43New Moon19Thu
20Fri3:4214.74:2014.39:51-1.410:041.26:399:40Waxing Crescent20Fri
21Sat4:1614.44:4614.210:20-0.810:371.36:419:38Waxing Crescent21Sat
22Sun4:4913.85:1313.910:500.211:111.66:449:35Waxing Crescent22Sun
23Mon5:2412.95:4013.411:201.511:462.16:469:32Waxing Crescent23Mon
24Tue6:0211.96:0912.911:513.06:489:29First Quarter24Tue
25Wed6:4610.86:4312.312:252.812:264.56:509:26First Quarter25Wed
26Thu7:449.87:2811.71:143.61:116.06:539:23First Quarter26Thu
27Fri9:109.28:3311.32:194.12:187.26:559:20First Quarter27Fri
28Sat10:539.59:5811.53:474.03:527.66:579:18Waxing Gibbous28Sat
29Sun12:0810.55:122.95:176.87:009:15Waxing Gibbous29Sun
30Mon12:5911.86:131.26:205.27:029:12Waxing Gibbous30Mon
31Tue12:2313.61:4013.27:01-0.77:103.37:049:09Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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

Slack tide in Port Chatham, AK is approximately 9:12 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