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

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 42m at 10:26 am (-1.9 ft)
Next high tide : 4:34 pm (7.7 ft)
Sunset today : 10:14 pm
Sunrise tomorrow : 7:07 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:446.33:497.49:462.010:291.35:407:31Waning Gibbous1Fri
2Sat4:245.74:207.210:143.011:141.85:427:29Third Quarter2Sat
3Sun5:105.04:576.910:454.05:447:26Third Quarter3Sun
4Mon6:154.55:466.712:102.411:22 AM4.95:467:24Third Quarter4Mon
5Tue8:244.36:566.51:302.812:245.65:487:21Third Quarter5Tue
6Wed10:254.68:246.63:152.62:085.95:507:18Waning Crescent6Wed
7Thu11:085.19:386.94:261.93:435.45:527:16Waning Crescent7Thu
8Fri11:375.610:357.45:121.04:464.55:547:13Waning Crescent8Fri
9Sat12:036.15:480.25:343.45:567:11Waning Crescent9Sat
10Sun12:296.76:20-0.46:162.25:587:08New Moon10Sun
11Mon12:078.212:567.36:51-0.86:561.16:007:05New Moon11Mon
12Tue12:508.31:247.87:22-0.97:370.06:027:03New Moon12Tue
13Wed1:328.21:548.37:54-0.68:18-0.76:047:00Waxing Crescent13Wed
14Thu2:157.92:278.78:270.09:02-1.06:066:57Waxing Crescent14Thu
15Fri3:017.43:028.89:020.99:49-0.96:076:55Waxing Crescent15Fri
16Sat3:506.73:428.79:392.010:41-0.46:096:52Waxing Crescent16Sat
17Sun4:475.94:298.410:213.211:430.36:116:49First Quarter17Sun
18Mon5:595.35:267.911:124.36:136:47First Quarter18Mon
19Tue7:425.06:427.41:021.012:235.26:156:44First Quarter19Tue
20Wed9:295.28:177.22:401.12:105.46:176:42Waxing Gibbous20Wed
21Thu10:345.89:417.44:000.83:514.76:196:39Waxing Gibbous21Thu
22Fri11:186.410:457.64:580.34:583.56:216:36Waxing Gibbous22Fri
23Sat11:536.911:377.85:420.05:482.46:236:34Waxing Gibbous23Sat
24Sun12:247.36:19-0.26:301.46:256:31Full Moon24Sun
25Mon12:217.812:517.76:51-0.17:070.66:276:28Full Moon25Mon
26Tue1:007.71:177.97:190.37:400.16:296:26Full Moon26Tue
27Wed1:377.51:418.07:460.98:12-0.26:316:23Full Moon27Wed
28Thu2:127.12:068.18:121.68:45-0.16:336:20Waning Gibbous28Thu
29Fri2:476.72:318.08:382.49:180.26:356:18Waning Gibbous29Fri
30Sat3:226.32:597.89:053.29:540.76:376:15Waning Gibbous30Sat
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 1:30 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 6% 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 (6% 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