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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 8:42 am (-2.4 ft)
Next high tide : in 30m at 1:17 am (9.2 ft)
Sunset today : 11:14 pm
Sunrise tomorrow : 6:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:076.26:387.312:241.612:251.16:4110:44Third Quarter1Thu
2Fri6:565.57:197.41:141.61:022.06:4310:42Third Quarter2Fri
3Sat7:594.98:117.52:151.71:463.06:4510:40Third Quarter3Sat
4Sun9:274.59:157.63:291.52:463.96:4610:38Third Quarter4Sun
5Mon11:154.510:307.94:541.14:064.46:4810:35Waning Crescent5Mon
6Tue12:395.06:120.25:304.36:5010:33Waning Crescent6Tue
7Wed1:365.77:14-0.86:443.66:5210:31Waning Crescent7Wed
8Thu12:488.72:226.38:06-1.67:472.66:5410:29New Moon8Thu
9Fri1:469.13:026.98:50-2.28:431.66:5610:27New Moon9Fri
10Sat2:399.23:407.59:31-2.49:330.86:5810:25New Moon10Sat
11Sun3:289.04:177.910:09-2.210:200.27:0010:22Waxing Crescent11Sun
12Mon4:148.54:548.110:46-1.611:070.07:0210:20Waxing Crescent12Mon
13Tue5:017.95:308.111:22-0.711:540.17:0410:18Waxing Crescent13Tue
14Wed5:477.06:078.011:570.47:0610:16Waxing Crescent14Wed
15Thu6:356.26:467.712:430.612:331.77:0810:13First Quarter15Thu
16Fri7:295.37:297.31:361.21:112.97:0910:11First Quarter16Fri
17Sat8:394.78:206.92:401.81:564.17:1110:09First Quarter17Sat
18Sun10:284.49:296.74:062.22:574.97:1310:06First Quarter18Sun
19Mon12:114.65:362.14:285.37:1510:04Waxing Gibbous19Mon
20Tue1:105.06:401.65:565.07:1710:01Waxing Gibbous20Tue
21Wed1:485.47:281.06:564.47:199:59Waxing Gibbous21Wed
22Thu12:477.32:175.88:040.57:413.77:219:56Waxing Gibbous22Thu
23Fri1:317.52:426.28:350.08:202.97:239:54Full Moon23Fri
24Sat2:107.73:076.69:02-0.38:552.27:259:51Full Moon24Sat
25Sun2:467.83:317.09:27-0.49:291.57:279:49Full Moon25Sun
26Mon3:217.83:567.39:53-0.410:040.97:299:46Full Moon26Mon
27Tue3:557.64:227.610:20-0.110:390.67:319:44Waning Gibbous27Tue
28Wed4:327.24:507.810:490.511:180.47:339:41Waning Gibbous28Wed
29Thu5:106.85:228.011:191.27:359:39Waning Gibbous29Thu
30Fri5:546.25:588.012:010.511:52 AM2.17:379:36Waning Gibbous30Fri
31Sat6:445.66:427.912:500.712:313.07:399:34Third Quarter31Sat
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 4:59 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 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