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

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 19m at 11:00 am (-1.1 ft)
Next high tide : 5:08 pm (7.8 ft)
Sunset today : 10:12 pm
Sunrise tomorrow : 7:09 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:504.89:468.04:220.73:344.64:418:43Waning Crescent1Sun
2Mon11:485.410:468.65:21-0.34:424.34:438:41Waning Crescent2Mon
3Tue12:345.96:12-1.45:423.64:458:39New Moon3Tue
4Wed1:156.46:57-2.26:372.84:478:37New Moon4Wed
5Thu12:349.41:546.97:40-2.77:291.94:498:35New Moon5Thu
6Fri1:249.42:337.38:21-2.88:191.24:518:32Waxing Crescent6Fri
7Sat2:139.13:127.69:01-2.59:090.74:538:30Waxing Crescent7Sat
8Sun3:038.53:527.89:40-1.710:020.54:558:28Waxing Crescent8Sun
9Mon3:547.64:337.910:19-0.610:580.64:578:26Waxing Crescent9Mon
10Tue4:486.65:167.811:000.711:590.94:598:24First Quarter10Tue
11Wed5:505.66:047.611:432.15:008:21First Quarter11Wed
12Thu7:104.97:017.41:131.212:353.45:028:19First Quarter12Thu
13Fri8:564.78:087.22:391.31:424.45:048:17Waxing Gibbous13Fri
14Sat10:304.99:197.33:591.13:074.95:068:15Waxing Gibbous14Sat
15Sun11:335.310:227.45:030.64:254.95:088:12Waxing Gibbous15Sun
16Mon12:175.75:530.25:244.55:108:10Waxing Gibbous16Mon
17Tue12:516.06:33-0.26:093.95:128:08Full Moon17Tue
18Wed1:206.27:07-0.46:473.35:148:05Full Moon18Wed
19Thu12:368.01:456.47:36-0.67:212.75:168:03Full Moon19Thu
20Fri1:118.02:106.68:03-0.77:542.35:188:00Full Moon20Fri
21Sat1:447.82:336.88:28-0.58:271.95:207:58Waning Gibbous21Sat
22Sun2:177.52:586.98:53-0.29:011.75:227:55Waning Gibbous22Sun
23Mon2:507.13:237.09:180.49:381.65:247:53Waning Gibbous23Mon
24Tue3:256.63:507.19:451.110:171.65:267:50Waning Gibbous24Tue
25Wed4:046.04:217.210:142.011:031.85:287:48Third Quarter25Wed
26Thu4:505.44:587.210:463.011:582.05:307:45Third Quarter26Thu
27Fri5:494.85:467.111:253.95:327:43Third Quarter27Fri
28Sat7:194.56:517.21:092.112:234.75:347:40Third Quarter28Sat
29Sun9:194.68:117.42:371.71:505.25:357:38Waning Crescent29Sun
30Mon10:395.19:297.83:590.93:214.95:377:35Waning Crescent30Mon
31Tue11:285.710:358.45:01-0.14:364.15:397:33Waning Crescent31Tue
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 2:04 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 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 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 Crescent (12% 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