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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 36m at 9:12 am (-0.6 ft)
Next high tide : 3:28 pm (5.9 ft)
Sunset today : 10:50 pm
Sunrise tomorrow : 6:35 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:047.85:116.910:52-1.411:062.14:5610:24Waxing Crescent1Thu
2Fri4:517.35:527.011:33-0.84:5710:23Waxing Crescent2Fri
3Sat5:436.66:397.212:012.012:160.04:5810:23First Quarter3Sat
4Sun6:455.97:317.31:041.91:050.94:5910:22First Quarter4Sun
5Mon8:005.38:307.62:171.62:021.85:0010:21First Quarter5Mon
6Tue9:295.09:337.93:371.13:072.55:0110:20Waxing Gibbous6Tue
7Wed10:565.210:358.24:520.34:162.95:0210:20Waxing Gibbous7Wed
8Thu12:075.55:56-0.65:233.05:0310:19Waxing Gibbous8Thu
9Fri1:056.06:51-1.46:252.85:0410:18Full Moon9Fri
10Sat12:288.81:546.47:40-1.97:202.55:0610:17Full Moon10Sat
11Sun1:188.92:376.78:23-2.28:102.25:0710:16Full Moon11Sun
12Mon2:058.93:176.99:03-2.28:562.05:0810:15Full Moon12Mon
13Tue2:488.63:557.09:40-1.99:391.95:1010:13Waning Gibbous13Tue
14Wed3:298.14:317.010:16-1.410:221.95:1110:12Waning Gibbous14Wed
15Thu4:107.55:066.910:50-0.711:062.15:1310:11Waning Gibbous15Thu
16Fri4:516.85:426.811:240.211:522.35:1410:10Waning Gibbous16Fri
17Sat5:336.16:196.711:591.15:1610:08Third Quarter17Sat
18Sun6:215.47:006.612:432.612:362.05:1710:07Third Quarter18Sun
19Mon7:194.87:486.61:432.81:192.95:1910:05Third Quarter19Mon
20Tue8:394.48:456.62:582.72:133.65:2110:04Third Quarter20Tue
21Wed10:154.49:456.84:182.33:184.15:2210:02Waning Crescent21Wed
22Thu11:324.710:417.25:221.74:274.25:2410:01Waning Crescent22Thu
23Fri12:265.16:120.95:284.05:269:59Waning Crescent23Fri
24Sat1:085.56:530.16:213.65:279:57Waning Crescent24Sat
25Sun12:208.01:436.07:30-0.67:083.05:299:56New Moon25Sun
26Mon1:048.32:176.48:05-1.27:522.45:319:54New Moon26Mon
27Tue1:468.52:516.88:40-1.78:351.85:339:52New Moon27Tue
28Wed2:278.53:257.29:14-1.89:181.35:359:50Waxing Crescent28Wed
29Thu3:108.44:017.59:50-1.710:030.95:369:48Waxing Crescent29Thu
30Fri3:548.04:387.710:27-1.210:510.85:389:46Waxing Crescent30Fri
31Sat4:417.45:197.811:07-0.511:440.85:409:44Waxing Crescent31Sat
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 12:20 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 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 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 Full Moon (99% 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