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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 19m at 1:31 pm (-0.6 ft)
Next high tide : 8:00 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:517.55:516.611:37-0.611:462.46:4210:43Waxing Crescent1Mon
2Tue5:297.06:226.812:08-0.16:4410:41Waxing Crescent2Tue
3Wed6:136.46:566.912:312.212:420.76:4610:39First Quarter3Wed
4Thu7:045.77:377.11:232.01:191.76:4710:37First Quarter4Thu
5Fri8:075.18:267.32:241.92:042.76:4910:34First Quarter5Fri
6Sat9:344.79:277.63:381.63:023.66:5110:32First Quarter6Sat
7Sun11:174.710:377.95:011.04:154.26:5310:30Waxing Gibbous7Sun
8Mon12:435.16:170.15:344.36:5510:28Waxing Gibbous8Mon
9Tue1:455.77:20-0.96:463.96:5710:26Waxing Gibbous9Tue
10Wed12:518.82:336.28:14-1.77:493.26:5910:24Full Moon10Wed
11Thu1:499.23:156.89:01-2.38:452.37:0110:21Full Moon11Thu
12Fri2:429.43:557.29:43-2.69:361.57:0310:19Full Moon12Fri
13Sat3:319.24:337.510:23-2.510:241.07:0510:17Waning Gibbous13Sat
14Sun4:198.85:107.711:01-1.911:120.77:0710:14Waning Gibbous14Sun
15Mon5:058.15:477.711:37-1.07:0910:12Waning Gibbous15Mon
16Tue5:527.26:247.612:000.812:130.17:1110:10Waning Gibbous16Tue
17Wed6:406.37:027.412:491.012:491.47:1210:07Third Quarter17Wed
18Thu7:355.47:437.11:431.51:272.77:1410:05Third Quarter18Thu
19Fri8:454.88:336.82:481.92:113.97:1610:03Third Quarter19Fri
20Sat10:334.59:366.74:112.23:104.87:1810:00Third Quarter20Sat
21Sun12:184.75:372.04:365.37:209:58Waning Crescent21Sun
22Mon1:205.16:431.66:005.27:229:55Waning Crescent22Mon
23Tue2:005.47:331.07:004.87:249:53Waning Crescent23Tue
24Wed12:497.32:305.88:120.57:464.17:269:50Waning Crescent24Wed
25Thu1:347.72:576.18:44-0.18:253.47:289:48New Moon25Thu
26Fri2:137.93:226.49:13-0.59:002.77:309:45New Moon26Fri
27Sat2:508.03:466.79:39-0.79:342.17:329:43New Moon27Sat
28Sun3:258.04:127.010:06-0.710:091.57:349:40New Moon28Sun
29Mon4:007.84:377.310:33-0.510:461.17:369:38Waxing Crescent29Mon
30Tue4:367.55:057.511:020.011:250.87:389:35Waxing Crescent30Tue
31Wed5:157.05:367.711:320.87:409:33Waxing Crescent31Wed
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 4:45 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 transitional phase. Tonight's moon is 39% 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 First Quarter (39% 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