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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 51m at 10:13 am (-3.0 ft)
Next high tide : 4:30 pm (6.9 ft)
Sunset today : 11:11 pm
Sunrise tomorrow : 6:13 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:468.26:135.812:271.19:296:10First Quarter1Thu
2Fri6:318.17:255.012:112.11:351.39:276:12First Quarter2Fri
3Sat7:278.09:134.612:593.33:001.39:266:14First Quarter3Sat
4Sun8:387.911:104.82:044.44:340.99:246:16Waxing Gibbous4Sun
5Mon9:588.03:345.05:480.29:226:18Waxing Gibbous5Mon
6Tue12:225.411:12 AM8.35:064.96:45-0.69:196:21Waxing Gibbous6Tue
7Wed1:116.012:148.66:194.27:31-1.29:176:23Waxing Gibbous7Wed
8Thu1:496.61:068.77:153.38:10-1.69:156:25Full Moon8Thu
9Fri2:237.01:518.78:012.58:44-1.69:136:27Full Moon9Fri
10Sat2:547.32:318.58:431.89:14-1.49:116:29Full Moon10Sat
11Sun3:237.53:098.19:211.39:43-0.99:096:32Waning Gibbous11Sun
12Mon3:517.63:467.69:581.110:10-0.29:076:34Waning Gibbous12Mon
13Tue4:187.74:226.910:351.110:370.79:046:36Waning Gibbous13Tue
14Wed4:457.64:586.211:121.311:041.79:026:38Waning Gibbous14Wed
15Thu5:137.55:385.511:531.711:322.79:006:40Third Quarter15Thu
16Fri5:457.36:254.812:412.38:586:42Third Quarter16Fri
17Sat6:247.07:354.212:023.71:432.78:556:45Third Quarter17Sat
18Sun7:166.810:014.112:394.73:172.98:536:47Third Quarter18Sun
19Mon8:296.711:534.51:445.44:562.38:516:49Waning Crescent19Mon
20Tue9:536.83:285.75:561.58:486:51Waning Crescent20Tue
21Wed12:335.011:02 AM7.25:005.36:380.68:466:53Waning Crescent21Wed
22Thu1:015.611:57 AM7.76:044.47:13-0.38:436:55Waning Crescent22Thu
23Fri1:276.112:448.16:533.37:44-1.08:416:58New Moon23Fri
24Sat1:536.71:288.47:362.28:15-1.48:397:00New Moon24Sat
25Sun2:217.32:108.48:181.08:46-1.58:367:02New Moon25Sun
26Mon2:507.92:528.38:590.19:18-1.28:347:04New Moon26Mon
27Tue3:218.43:357.89:41-0.59:51-0.58:317:06Waxing Crescent27Tue
28Wed3:558.74:217.210:26-0.810:260.58:297:08Waxing Crescent28Wed
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 1:21 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 3% 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 New Moon (3% 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