Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 4h 28m at 9:23 am (-1.9 ft)
Next high tide : 3:59 pm (13.8 ft)
Sunset today : 10:36 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Aug 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:5011.37:5313.81:270.91:273.45:5510:31First Quarter1Sat
2Sun9:1310.38:5613.22:361.52:325.25:5710:28First Quarter2Sun
3Mon10:5010.210:1512.93:591.63:546.35:5910:26Waxing Gibbous3Mon
4Tue12:1510.95:241.05:206.26:0210:23Waxing Gibbous4Tue
5Wed1:1611.96:320.06:315.26:0410:21Waxing Gibbous5Wed
6Thu12:4113.72:0412.97:24-1.07:253.96:0610:18Full Moon6Thu
7Fri1:3614.42:4313.78:06-1.98:102.76:0910:16Full Moon7Fri
8Sat2:2214.93:1814.38:43-2.38:501.66:1110:13Full Moon8Sat
9Sun3:0215.23:5014.69:17-2.49:270.96:1310:11Full Moon9Sun
10Mon3:3915.14:1914.79:49-2.110:030.66:1510:08Waning Gibbous10Mon
11Tue4:1514.64:4714.610:19-1.310:380.76:1810:05Waning Gibbous11Tue
12Wed4:5013.95:1414.210:49-0.111:131.16:2010:03Waning Gibbous12Wed
13Thu5:2513.05:4113.711:191.311:491.76:2210:00Waning Gibbous13Thu
14Fri6:0211.96:0913.011:493.06:259:57Third Quarter14Fri
15Sat6:4510.76:4112.312:282.612:224.76:279:55Third Quarter15Sat
16Sun7:409.57:2211.61:153.61:016.36:299:52Third Quarter16Sun
17Mon9:058.88:2311.02:194.32:027.66:329:49Third Quarter17Mon
18Tue11:008.99:5110.93:494.43:408.26:349:46Waning Crescent18Tue
19Wed12:199.85:203.55:157.66:369:44Waning Crescent19Wed
20Thu1:0511.06:192.06:186.26:389:41Waning Crescent20Thu
21Fri12:1912.71:4112.37:020.37:064.46:419:38Waning Crescent21Fri
22Sat1:1014.02:1413.67:39-1.37:472.56:439:35New Moon22Sat
23Sun1:5615.12:4714.78:15-2.68:280.76:459:32New Moon23Sun
24Mon2:3916.03:2015.88:51-3.39:08-0.86:489:30New Moon24Mon
25Tue3:2216.43:5316.49:27-3.49:48-1.96:509:27Waxing Crescent25Tue
26Wed4:0516.34:2716.710:04-2.710:30-2.26:529:24Waxing Crescent26Wed
27Thu4:5015.65:0316.510:43-1.411:15-1.96:549:21Waxing Crescent27Thu
28Fri5:3714.45:4215.911:230.56:579:18Waxing Crescent28Fri
29Sat6:3112.96:2514.812:04-0.912:082.76:599:15First Quarter29Sat
30Sun7:3611.47:1913.61:010.41:024.87:019:12First Quarter30Sun
31Mon9:0510.48:3312.42:121.82:156.57:049:09First Quarter31Mon
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 12:41 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 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 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 Full Moon (99% 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