Tides Today & Tomorrow in Chiachi Island (East Side), AK

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 34m at 5:05 pm (5.0 ft)
Next high tide : 11:24 pm (7.0 ft)
Sunset today : 10:58 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:047.55:527.611:36-0.65:429:42Third Quarter1Fri
2Sat6:006.66:417.612:111.212:220.45:449:40Third Quarter2Sat
3Sun7:065.87:377.61:161.31:131.65:469:38Third Quarter3Sun
4Mon8:295.28:417.62:341.32:152.65:489:36Third Quarter4Mon
5Tue10:045.19:487.73:581.03:283.35:509:34Waning Crescent5Tue
6Wed11:265.410:527.95:120.54:423.65:519:32Waning Crescent6Wed
7Thu12:295.86:13-0.25:493.45:539:30Waning Crescent7Thu
8Fri1:186.27:03-0.76:453.15:559:28Waning Crescent8Fri
9Sat12:408.31:586.57:45-1.07:322.75:579:25New Moon9Sat
10Sun1:248.42:336.78:22-1.28:132.35:599:23New Moon10Sun
11Mon2:048.33:056.98:55-1.18:502.16:019:21New Moon11Mon
12Tue2:418.23:356.99:26-0.99:261.96:039:19Waxing Crescent12Tue
13Wed3:177.84:046.99:56-0.510:021.86:059:16Waxing Crescent13Wed
14Thu3:527.44:346.910:250.010:391.96:079:14Waxing Crescent14Thu
15Fri4:286.95:046.810:550.711:192.16:099:12Waxing Crescent15Fri
16Sat5:066.35:376.711:271.56:119:09Waxing Crescent16Sat
17Sun5:495.76:156.612:032.412:022.46:139:07First Quarter17Sun
18Mon6:425.17:016.612:562.612:433.26:159:05First Quarter18Mon
19Tue7:534.77:596.62:012.81:363.96:179:02First Quarter19Tue
20Wed9:294.69:066.83:202.62:464.46:199:00First Quarter20Wed
21Thu10:554.910:137.14:381.94:024.46:208:57Waxing Gibbous21Thu
22Fri11:555.411:137.75:381.15:104.06:228:55Waxing Gibbous22Fri
23Sat12:406.06:260.16:083.36:248:52Waxing Gibbous23Sat
24Sun12:068.21:206.67:09-0.86:592.36:268:50Full Moon24Sun
25Mon12:568.71:577.27:49-1.57:461.46:288:47Full Moon25Mon
26Tue1:438.92:347.78:28-1.98:330.66:308:45Full Moon26Tue
27Wed2:299.03:128.19:07-1.99:190.06:328:42Waning Gibbous27Wed
28Thu3:168.73:518.39:46-1.510:06-0.36:348:40Waning Gibbous28Thu
29Fri4:048.24:338.410:26-0.810:57-0.36:368:37Waning Gibbous29Fri
30Sat4:557.55:178.311:090.311:520.16:388:35Waning Gibbous30Sat
31Sun5:516.66:058.011:541.56:408:32Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 8:14 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a spring phase. Tonight's moon is 80% 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 Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide predictions for Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide data for Chiachi Island (East Side), AK is sourced from NOAA Station #9459085. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9459085.

What is the moon phase in Chiachi Island (East Side), AK tonight?

Tonight the moon over Chiachi Island (East Side), AK is Waxing Gibbous (80% illuminated). This places Chiachi Island (East Side), 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