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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 02m at 11:36 am (-1.1 ft)
Next high tide : 5:57 pm (6.1 ft)
Sunset today : 11:23 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:065.37:350.46:524.86:4210:42Waning Crescent1Mon
2Tue12:487.62:455.68:200.07:454.56:4410:40Waning Crescent2Tue
3Wed1:357.83:175.98:57-0.48:274.06:4610:38New Moon3Wed
4Thu2:168.03:446.19:29-0.79:043.56:4810:36New Moon4Thu
5Fri2:538.14:106.29:57-0.89:393.06:4910:34New Moon5Fri
6Sat3:288.04:356.410:24-0.910:132.66:5110:32New Moon6Sat
7Sun4:017.85:006.510:49-0.710:482.36:5310:30Waxing Crescent7Sun
8Mon4:357.45:266.711:16-0.411:252.16:5510:28Waxing Crescent8Mon
9Tue5:106.95:526.811:430.26:5710:26Waxing Crescent9Tue
10Wed5:486.46:227.012:051.912:111.06:5910:23Waxing Crescent10Wed
11Thu6:315.86:557.112:491.912:421.97:0110:21First Quarter11Thu
12Fri7:245.17:377.21:411.91:182.97:0310:19First Quarter12Fri
13Sat8:364.68:327.32:452.02:043.87:0510:16First Quarter13Sat
14Sun10:214.49:417.54:061.73:124.67:0710:14First Quarter14Sun
15Mon12:064.75:321.04:394.97:0910:12Waxing Gibbous15Mon
16Tue1:145.36:430.16:014.67:1110:09Waxing Gibbous16Tue
17Wed12:098.42:025.97:40-1.07:113.77:1310:07Waxing Gibbous17Wed
18Thu1:128.92:436.58:28-1.88:102.67:1510:05Full Moon18Thu
19Fri2:079.23:207.19:10-2.49:021.57:1710:02Full Moon19Fri
20Sat2:599.33:577.69:50-2.59:520.67:1810:00Full Moon20Sat
21Sun3:479.04:348.010:28-2.210:400.07:209:57Waning Gibbous21Sun
22Mon4:358.55:118.211:04-1.411:28-0.27:229:55Waning Gibbous22Mon
23Tue5:237.75:488.211:41-0.37:249:52Waning Gibbous23Tue
24Wed6:136.86:278.012:170.012:171.07:269:50Third Quarter24Wed
25Thu7:075.87:087.71:100.512:552.47:289:47Third Quarter25Thu
26Fri8:135.17:567.32:101.21:383.77:309:45Third Quarter26Fri
27Sat9:524.68:596.93:271.72:344.87:329:42Third Quarter27Sat
28Sun11:504.710:186.85:021.94:015.57:349:40Waning Crescent28Sun
29Mon1:025.16:191.65:435.47:369:37Waning Crescent29Mon
30Tue1:455.57:151.16:504.97:389:35Waning Crescent30Tue
31Wed12:357.22:175.97:570.67:384.27:409:32Waning Crescent31Wed
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 2:46 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 87% 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 Gibbous (87% 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