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 16m 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 - Feb 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:107.31:478.37:592.08:29-0.98:315:08New Moon1Sun
2Mon2:397.42:227.98:341.88:58-0.58:295:11Waxing Crescent2Mon
3Tue3:077.42:567.49:101.89:260.18:275:13Waxing Crescent3Tue
4Wed3:367.43:316.89:471.99:550.98:255:15Waxing Crescent4Wed
5Thu4:057.34:086.210:262.110:251.78:235:17Waxing Crescent5Thu
6Fri4:387.24:505.511:102.510:582.68:215:19First Quarter6Fri
7Sat5:167.05:424.912:032.88:195:22First Quarter7Sat
8Sun6:026.96:584.41:123.08:175:24First Quarter8Sun
9Mon7:026.88:514.412:294.32:382.78:145:26First Quarter9Mon
10Tue8:137.010:224.81:444.83:582.08:125:28Waxing Gibbous10Tue
11Wed9:227.311:155.43:084.84:541.08:105:30Waxing Gibbous11Wed
12Thu10:237.811:556.04:204.35:390.08:085:32Waxing Gibbous12Thu
13Fri11:168.35:183.46:19-0.98:065:35Waxing Gibbous13Fri
14Sat12:306.712:048.76:092.46:56-1.58:045:37Full Moon14Sat
15Sun1:057.312:508.96:561.47:32-1.98:015:39Full Moon15Sun
16Mon1:407.91:358.97:410.58:09-1.97:595:41Full Moon16Mon
17Tue2:168.32:208.68:26-0.18:47-1.57:575:43Waning Gibbous17Tue
18Wed2:548.63:078.09:13-0.49:25-0.77:545:45Waning Gibbous18Wed
19Thu3:338.73:567.310:02-0.310:060.37:525:48Waning Gibbous19Thu
20Fri4:168.64:516.410:560.110:501.57:505:50Third Quarter20Fri
21Sat5:048.35:565.611:580.711:402.77:475:52Third Quarter21Sat
22Sun6:007.97:235.11:151.27:455:54Third Quarter22Sun
23Mon7:107.59:095.012:453.82:481.37:435:56Third Quarter23Mon
24Tue8:327.310:305.52:124.44:080.97:405:58Waning Crescent24Tue
25Wed9:487.411:256.03:474.25:070.47:386:01Waning Crescent25Wed
26Thu10:507.64:573.65:540.07:356:03Waning Crescent26Thu
27Fri12:066.511:40 AM7.85:502.96:32-0.37:336:05Waning Crescent27Fri
28Sat12:406.812:227.96:322.17:05-0.47:306:07New Moon28Sat
29Sun1:097.212:597.87:091.57:33-0.47:286:09New Moon29Sun
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