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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:08 pm (-0.7 ft)
Next high tide : in 2h 56m at 5:11 am (7.2 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:225.08:436.22:482.62:435.18:418:09First Quarter1Tue
2Wed10:485.210:076.24:082.74:135.08:438:07First Quarter2Wed
3Thu11:465.711:206.45:202.35:324.38:458:04Waxing Gibbous3Thu
4Fri12:286.36:131.86:293.28:478:01Waxing Gibbous4Fri
5Sat12:186.91:047.06:561.27:162.08:497:59Waxing Gibbous5Sat
6Sun1:097.31:387.67:350.87:580.88:517:56Full Moon6Sun
7Mon1:557.72:138.38:130.58:40-0.38:537:54Full Moon7Mon
8Tue2:407.92:488.88:510.49:22-1.28:557:51Full Moon8Tue
9Wed3:248.03:269.29:290.610:04-1.78:577:49Full Moon9Wed
10Thu4:097.94:059.310:081.010:49-1.88:597:46Waning Gibbous10Thu
11Fri4:577.64:479.210:501.611:37-1.59:017:43Waning Gibbous11Fri
12Sat5:487.15:338.911:352.39:037:41Waning Gibbous12Sat
13Sun6:456.66:268.312:29-0.812:273.19:057:38Third Quarter13Sun
14Mon7:526.27:297.61:280.01:293.99:077:36Third Quarter14Mon
15Tue9:126.18:467.02:370.82:504.39:097:33Third Quarter15Tue
16Wed10:346.310:156.73:571.34:294.09:117:31Third Quarter16Wed
17Thu11:386.711:346.85:131.45:503.19:147:29Waning Crescent17Thu
18Fri12:287.26:131.36:502.19:167:26Waning Crescent18Fri
19Sat12:387.01:097.67:011.27:371.29:187:24Waning Crescent19Sat
20Sun1:307.11:448.07:421.38:180.49:207:21New Moon20Sun
21Mon2:147.22:168.28:181.58:54-0.19:227:19New Moon21Mon
22Tue2:547.32:468.48:511.79:27-0.49:247:17New Moon22Tue
23Wed3:307.23:158.49:222.19:59-0.59:267:14New Moon23Wed
24Thu4:057.13:448.49:522.510:31-0.39:287:12Waxing Crescent24Thu
25Fri4:406.94:148.210:243.011:050.09:307:10Waxing Crescent25Fri
26Sat5:166.64:457.910:573.511:410.49:327:07Waxing Crescent26Sat
27Sun5:556.25:207.511:324.09:347:05Waxing Crescent27Sun
28Mon6:395.96:017.112:201.012:134.59:367:03First Quarter28Mon
29Tue7:315.66:506.61:051.51:044.99:397:01First Quarter29Tue
30Wed8:355.57:536.11:592.02:105.19:416:58First Quarter30Wed
31Thu9:455.79:135.93:012.33:344.99:436:56First Quarter31Thu
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 8:39 am — 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 transitional phase. Tonight's moon is 79% 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 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 Waning Gibbous (79% illuminated). This places Chiachi Island (East Side), 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