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

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 17m at 7:42 am (-1.1 ft)
Next high tide : 2:05 pm (5.9 ft)
Sunset today : 10:23 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:435.010:397.55:260.54:344.23:559:24Waxing Gibbous1Fri
2Sat12:265.36:090.05:244.13:569:24Waxing Gibbous2Sat
3Sun1:035.66:45-0.46:083.93:579:23Full Moon3Sun
4Mon12:037.91:355.87:19-0.86:483.63:589:23Full Moon4Mon
5Tue12:408.12:066.07:50-1.17:263.33:599:22Full Moon5Tue
6Wed1:178.12:366.28:20-1.38:043.04:009:21Full Moon6Wed
7Thu1:527.93:076.38:50-1.38:422.74:019:20Waning Gibbous7Thu
8Fri2:287.73:376.59:20-1.19:232.54:029:20Waning Gibbous8Fri
9Sat3:067.34:106.79:53-0.710:082.34:039:19Waning Gibbous9Sat
10Sun3:486.74:456.810:27-0.110:582.24:059:18Waning Gibbous10Sun
11Mon4:366.15:247.111:040.711:552.04:069:17Third Quarter11Mon
12Tue5:335.46:117.311:471.64:079:16Third Quarter12Tue
13Wed6:464.97:077.51:041.712:392.54:099:15Third Quarter13Wed
14Thu8:184.68:107.92:221.21:443.34:109:13Waning Crescent14Thu
15Fri9:514.89:168.33:390.42:573.64:119:12Waning Crescent15Fri
16Sat11:065.310:208.74:47-0.64:093.64:139:11Waning Crescent16Sat
17Sun12:045.95:45-1.55:163.14:149:10New Moon17Sun
18Mon12:526.46:35-2.36:162.54:169:08New Moon18Mon
19Tue12:149.31:356.97:21-2.77:091.94:179:07New Moon19Tue
20Wed1:059.32:167.28:03-2.88:001.44:199:05New Moon20Wed
21Thu1:539.02:557.58:42-2.58:481.14:219:04Waxing Crescent21Thu
22Fri2:408.43:347.59:20-1.89:371.04:229:02Waxing Crescent22Fri
23Sat3:267.64:127.59:57-0.910:261.24:249:01Waxing Crescent23Sat
24Sun4:136.84:517.410:330.311:181.64:268:59First Quarter24Sun
25Mon5:025.95:317.211:101.44:288:57First Quarter25Mon
26Tue5:585.16:166.912:161.911:50 AM2.64:298:55First Quarter26Tue
27Wed7:134.57:096.81:282.212:373.74:318:54First Quarter27Wed
28Thu8:564.38:126.82:532.21:404.44:338:52Waxing Gibbous28Thu
29Fri10:274.59:166.94:061.82:564.84:358:50Waxing Gibbous29Fri
30Sat11:254.910:137.25:031.24:074.74:368:48Waxing Gibbous30Sat
31Sun12:055.35:470.65:044.34:388:46Waxing Gibbous31Sun
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 10:53 am — 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 5% 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 Waning Crescent (5% 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