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 1h 35m 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 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:2010.75:433.55:446.27:059:07Waxing Gibbous1Fri
2Sat1:0311.76:302.36:335.07:079:04Waxing Gibbous2Sat
3Sun12:3812.61:3812.77:071.17:133.67:109:01Waxing Gibbous3Sun
4Mon1:2013.62:1013.67:40-0.17:502.27:128:59Full Moon4Mon
5Tue1:5914.52:4114.58:13-1.18:250.97:148:56Full Moon5Tue
6Wed2:3715.23:1215.28:45-1.79:01-0.27:168:53Full Moon6Wed
7Thu3:1515.73:4415.79:19-1.99:38-0.97:198:50Full Moon7Thu
8Fri3:5315.74:1615.99:54-1.610:16-1.27:218:47Waning Gibbous8Fri
9Sat4:3315.34:5015.810:30-0.810:57-1.07:238:44Waning Gibbous9Sat
10Sun5:1714.55:2815.311:100.411:42-0.37:258:41Waning Gibbous10Sun
11Mon6:0513.56:1114.611:542.07:288:38Third Quarter11Mon
12Tue7:0412.37:0413.712:350.612:473.77:308:35Third Quarter12Tue
13Wed8:2011.38:1312.81:391.61:545.27:328:32Third Quarter13Wed
14Thu9:5211.19:4012.52:592.13:195.87:348:29Third Quarter14Thu
15Fri11:1611.811:0513.04:261.84:485.27:378:26Waning Crescent15Fri
16Sat12:2012.95:390.85:583.77:398:23Waning Crescent16Sat
17Sun12:1314.01:0914.16:35-0.46:532.07:418:20Waning Crescent17Sun
18Mon1:0914.91:5115.17:21-1.37:390.47:438:17New Moon18Mon
19Tue1:5615.72:2915.88:02-1.98:20-0.87:468:14New Moon19Tue
20Wed2:3916.13:0416.28:39-2.08:59-1.57:488:11New Moon20Wed
21Thu3:1916.13:3716.29:14-1.69:36-1.67:508:08New Moon21Thu
22Fri3:5815.74:0815.99:49-0.810:12-1.27:538:05Waxing Crescent22Fri
23Sat4:3515.04:3915.210:240.510:48-0.47:558:02Waxing Crescent23Sat
24Sun5:1313.95:1014.310:582.011:260.87:577:59Waxing Crescent24Sun
25Mon5:5312.85:4313.311:353.67:597:56Waxing Crescent25Mon
26Tue6:3911.56:2112.212:062.112:165.28:027:53First Quarter26Tue
27Wed7:3910.57:1111.112:553.51:096.78:047:50First Quarter27Wed
28Thu9:029.98:2410.42:004.62:237.68:067:48First Quarter28Thu
29Fri10:3510.19:5810.43:284.93:577.58:087:45First Quarter29Fri
30Sat11:4110.911:1611.14:534.35:166.58:117:42Waxing Gibbous30Sat
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 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