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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 39m at 8:42 am (-2.4 ft)
Next high tide : 3:03 pm (6.1 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 - Jul 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:037.26:176.211:57-0.65:5511:24Waning Gibbous1Mon
2Tue5:426.76:506.312:033.012:29-0.15:5611:24Waning Gibbous2Tue
3Wed6:266.17:266.512:512.81:040.65:5711:23Third Quarter3Wed
4Thu7:185.58:076.81:452.71:431.45:5811:22Third Quarter4Thu
5Fri8:234.98:577.12:492.32:292.35:5911:22Third Quarter5Fri
6Sat9:484.59:537.54:021.83:263.16:0011:21Third Quarter6Sat
7Sun11:224.610:558.05:181.04:333.76:0111:20Waning Crescent7Sun
8Mon12:445.06:26-0.15:433.86:0311:19Waning Crescent8Mon
9Tue1:485.57:26-1.26:503.66:0411:18Waning Crescent9Tue
10Wed12:569.02:396.08:19-2.17:513.16:0511:17New Moon10Wed
11Thu1:529.43:256.59:07-2.88:482.56:0611:16New Moon11Thu
12Fri2:469.54:086.99:52-3.19:411.96:0811:15New Moon12Fri
13Sat3:379.44:507.210:35-3.110:331.46:0911:14Waxing Crescent13Sat
14Sun4:268.95:317.411:16-2.611:251.16:1011:13Waxing Crescent14Sun
15Mon5:168.26:137.511:56-1.86:1211:12Waxing Crescent15Mon
16Tue6:067.36:547.512:191.112:35-0.66:1311:10First Quarter16Tue
17Wed6:596.37:377.41:151.31:150.66:1511:09First Quarter17Wed
18Thu7:595.48:247.22:181.51:571.96:1611:08First Quarter18Thu
19Fri9:164.79:177.13:321.72:453.16:1811:06First Quarter19Fri
20Sat10:554.410:187.04:541.73:464.16:2011:05Waxing Gibbous20Sat
21Sun12:274.66:061.34:594.66:2111:03Waxing Gibbous21Sun
22Mon1:314.97:050.96:094.76:2311:02Waxing Gibbous22Mon
23Tue12:157.32:165.37:530.47:084.56:2511:00Waxing Gibbous23Tue
24Wed1:057.62:505.68:32-0.17:554.16:2610:58Full Moon24Wed
25Thu1:487.83:195.99:05-0.58:363.66:2810:57Full Moon25Thu
26Fri2:278.03:476.19:34-0.89:133.16:3010:55Full Moon26Fri
27Sat3:038.04:136.410:01-1.09:482.66:3210:53Full Moon27Sat
28Sun3:377.94:396.610:28-1.010:242.26:3310:51Waning Gibbous28Sun
29Mon4:117.65:066.810:55-0.811:011.96:3510:49Waning Gibbous29Mon
30Tue4:477.25:347.011:23-0.411:411.76:3710:48Waning Gibbous30Tue
31Wed5:246.76:047.211:530.36:3910:46Waning Gibbous31Wed
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 11:52 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