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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 35m at 8:13 pm (2.7 ft)
Next high tide (tomorrow) : 2:09 am (9.1 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 7:01 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:457.21:397.57:501.28:04-0.17:266:10Full Moon1Sun
2Mon2:077.42:107.38:200.88:280.47:246:12Waning Gibbous2Mon
3Tue2:297.62:436.98:520.68:530.97:216:14Waning Gibbous3Tue
4Wed2:547.73:166.49:250.69:191.77:196:17Waning Gibbous4Wed
5Thu3:207.83:535.910:020.89:462.57:166:19Waning Gibbous5Thu
6Fri3:517.74:365.310:451.110:163.37:146:21Third Quarter6Fri
7Sat4:287.65:334.711:391.610:544.17:116:23Third Quarter7Sat
8Sun5:177.37:034.312:491.97:096:25Third Quarter8Sun
9Mon6:247.19:094.42:201.77:066:27Third Quarter9Mon
10Tue7:527.110:235.01:305.23:450.97:036:29Waning Crescent10Tue
11Wed9:187.411:085.83:134.74:450.07:016:31Waning Crescent11Wed
12Thu10:287.811:456.64:313.55:32-0.86:586:33Waning Crescent12Thu
13Fri11:278.25:322.06:14-1.46:566:35New Moon13Fri
14Sat12:207.512:198.56:240.56:52-1.56:536:37New Moon14Sat
15Sun12:558.21:098.47:11-0.87:30-1.36:506:39New Moon15Sun
16Mon1:318.81:568.17:57-1.78:06-0.76:486:41New Moon16Mon
17Tue2:079.12:437.68:42-2.08:430.16:456:43Waxing Crescent17Tue
18Wed2:449.23:317.09:28-1.89:211.26:436:45Waxing Crescent18Wed
19Thu3:238.94:216.210:16-1.110:002.46:406:48Waxing Crescent19Thu
20Fri4:058.45:195.411:09-0.110:423.56:376:50First Quarter20Fri
21Sat4:527.76:354.812:110.96:356:52First Quarter21Sat
22Sun5:507.08:304.71:381.76:326:54First Quarter22Sun
23Mon7:096.59:595.012:545.23:131.86:296:56First Quarter23Mon
24Tue8:436.310:505.42:585.24:201.56:276:58Waxing Gibbous24Tue
25Wed9:586.411:255.84:204.45:071.16:247:00Waxing Gibbous25Wed
26Thu10:536.611:526.35:123.45:430.86:217:02Waxing Gibbous26Thu
27Fri11:376.85:532.46:120.66:197:04Waxing Gibbous27Fri
28Sat12:156.712:156.96:271.56:380.66:167:06Full Moon28Sat
29Sun12:377.112:506.96:580.77:020.86:147:08Full Moon29Sun
30Mon1:007.51:236.97:280.17:271.06:117:10Full Moon30Mon
31Tue1:237.81:576.87:58-0.37:531.46:087:12Full Moon31Tue
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 11:11 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 1% 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 (1% 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