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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 37m at 9:12 am (-0.6 ft)
Next high tide : 3:28 pm (5.9 ft)
Sunset today : 10:50 pm
Sunrise tomorrow : 6:35 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:336.66:057.911:490.55:429:42First Quarter1Sun
2Mon6:345.86:577.812:441.012:371.65:449:40First Quarter2Mon
3Tue7:495.27:597.71:551.11:342.65:469:38First Quarter3Tue
4Wed9:245.09:107.73:191.02:453.45:489:36Waxing Gibbous4Wed
5Thu10:545.210:227.94:410.64:053.75:499:34Waxing Gibbous5Thu
6Fri12:035.75:47-0.15:203.45:519:32Waxing Gibbous6Fri
7Sat12:556.26:42-0.76:232.95:539:30Waxing Gibbous7Sat
8Sun12:228.31:386.67:27-1.17:162.35:559:28Full Moon8Sun
9Mon1:118.52:157.08:06-1.38:011.85:579:25Full Moon9Mon
10Tue1:548.42:487.28:41-1.38:421.45:599:23Full Moon10Tue
11Wed2:348.23:207.39:13-1.09:201.26:019:21Full Moon11Wed
12Thu3:127.93:507.49:44-0.69:571.26:039:19Waning Gibbous12Thu
13Fri3:487.44:207.310:140.110:341.36:059:16Waning Gibbous13Fri
14Sat4:256.84:517.210:440.911:141.66:079:14Waning Gibbous14Sat
15Sun5:036.25:247.111:151.711:572.06:099:12Waning Gibbous15Sun
16Mon5:455.66:026.911:492.66:119:09Third Quarter16Mon
17Tue6:355.06:476.712:472.412:293.46:139:07Third Quarter17Tue
18Wed7:464.57:456.61:512.71:204.26:159:05Third Quarter18Wed
19Thu9:274.48:556.63:142.72:314.66:179:02Third Quarter19Thu
20Fri10:564.710:056.94:352.23:524.66:189:00Waning Crescent20Fri
21Sat11:525.211:057.35:341.45:034.26:208:57Waning Crescent21Sat
22Sun12:325.86:190.66:003.46:228:55Waning Crescent22Sun
23Mon1:076.46:58-0.26:492.46:248:52New Moon23Mon
24Tue12:458.21:417.07:34-0.87:351.46:268:50New Moon24Tue
25Wed1:308.52:157.68:10-1.28:180.56:288:47New Moon25Wed
26Thu2:148.62:498.18:46-1.39:02-0.26:308:45New Moon26Thu
27Fri2:588.43:268.49:22-1.09:47-0.66:328:42Waxing Crescent27Fri
28Sat3:448.04:058.610:01-0.410:35-0.66:348:40Waxing Crescent28Sat
29Sun4:327.44:478.610:410.411:26-0.36:368:37Waxing Crescent29Sun
30Mon5:266.75:348.311:251.56:388:35First Quarter30Mon
31Tue6:276.06:288.012:250.312:152.66:408:32First Quarter31Tue
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 12:20 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 99% 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 Full Moon (99% 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