Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide : 5:55 pm (5.5 ft)
Next high tide : in 5h 20m at 12:41 pm (11.5 ft)
Sunset today : 10:12 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Jun 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:179.710:4611.84:114.14:094.05:0211:07Third Quarter1Tue
2Wed11:269.911:2712.15:123.15:034.45:0111:09Waning Crescent2Wed
3Thu12:2210.46:002.05:514.65:0011:10Waning Crescent3Thu
4Fri12:0512.51:0911.06:410.96:334.64:5811:12Waning Crescent4Fri
5Sat12:4013.01:5111.67:170.07:134.54:5711:13Waning Crescent5Sat
6Sun1:1613.42:3112.17:53-0.87:524.34:5611:14New Moon6Sun
7Mon1:5213.83:1012.58:29-1.48:304.24:5511:16New Moon7Mon
8Tue2:3014.13:4812.79:05-1.89:084.04:5511:17New Moon8Tue
9Wed3:0814.24:2612.89:42-2.09:474.04:5411:18New Moon9Wed
10Thu3:4714.15:0512.710:20-2.010:284.14:5311:19Waxing Crescent10Thu
11Fri4:2713.85:4512.510:59-1.711:124.14:5311:20Waxing Crescent11Fri
12Sat5:1113.36:2812.411:41-1.14:5211:21Waxing Crescent12Sat
13Sun6:0012.57:1312.412:014.212:27-0.34:5211:22First Quarter13Sun
14Mon6:5811.78:0212.512:584.11:170.74:5111:23First Quarter14Mon
15Tue8:0711.08:5412.82:023.62:131.84:5111:23First Quarter15Tue
16Wed9:2510.69:4913.33:112.73:142.84:5111:24First Quarter16Wed
17Thu10:4510.810:4513.94:211.54:203.44:5111:25Waxing Gibbous17Thu
18Fri11:5811.511:4014.55:26-0.15:243.74:5111:25Waxing Gibbous18Fri
19Sat1:0212.36:24-1.66:243.64:5111:25Waxing Gibbous19Sat
20Sun12:3415.21:5913.17:18-2.97:193.24:5111:26Full Moon20Sun
21Mon1:2715.62:5013.88:07-3.78:112.84:5111:26Full Moon21Mon
22Tue2:1915.93:3814.28:55-4.19:002.54:5111:26Full Moon22Tue
23Wed3:0915.94:2314.39:40-4.09:482.34:5211:26Waning Gibbous23Wed
24Thu3:5715.55:0714.110:24-3.410:352.34:5211:26Waning Gibbous24Thu
25Fri4:4314.75:4913.711:06-2.411:232.64:5311:26Waning Gibbous25Fri
26Sat5:2913.76:3113.211:48-1.14:5411:26Waning Gibbous26Sat
27Sun6:1612.47:1312.712:123.112:300.44:5411:25Third Quarter27Sun
28Mon7:0711.27:5512.21:043.51:132.04:5511:25Third Quarter28Mon
29Tue8:0510.18:4011.82:013.81:593.64:5611:24Third Quarter29Tue
30Wed9:149.39:2711.63:043.92:524.94:5711:24Third Quarter30Wed
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 3:18 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 12% 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 Waning Crescent (12% 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