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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : in 26m at 11:29 pm (3.2 ft)
Next high tide : 5:11 am (7.2 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 - May 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:346.412:366.26:512.06:570.76:5010:16Waxing Gibbous1Sat
2Sun1:067.11:306.67:370.47:370.76:4810:18Waxing Gibbous2Sun
3Mon1:397.92:206.88:20-1.08:160.96:4610:20Full Moon3Mon
4Tue2:148.63:086.99:03-2.18:551.26:4410:22Full Moon4Tue
5Wed2:519.13:576.99:47-2.89:351.76:4210:24Full Moon5Wed
6Thu3:319.44:466.710:32-3.110:172.26:3910:26Waning Gibbous6Thu
7Fri4:139.45:396.411:20-2.811:022.96:3710:27Waning Gibbous7Fri
8Sat4:599.06:366.012:12-2.26:3510:29Waning Gibbous8Sat
9Sun5:508.47:415.71:09-1.36:3310:31Third Quarter9Sun
10Mon6:507.68:555.612:534.12:13-0.56:3110:33Third Quarter10Mon
11Tue8:006.810:115.82:104.43:250.26:2910:35Third Quarter11Tue
12Wed9:266.211:126.13:504.14:360.66:2710:37Third Quarter12Wed
13Thu10:535.911:596.65:223.25:360.86:2610:39Waning Crescent13Thu
14Fri12:065.86:272.06:241.16:2410:41Waning Crescent14Fri
15Sat12:387.11:065.87:180.97:061.46:2210:43Waning Crescent15Sat
16Sun1:127.41:575.98:000.07:421.86:2010:44Waning Crescent16Sun
17Mon1:437.72:406.08:37-0.78:162.36:1810:46New Moon17Mon
18Tue2:128.03:206.09:11-1.18:492.76:1710:48New Moon18Tue
19Wed2:418.13:576.09:43-1.29:203.16:1510:50New Moon19Wed
20Thu3:118.14:335.910:15-1.29:523.56:1310:52New Moon20Thu
21Fri3:428.15:105.710:49-1.010:253.86:1210:53Waxing Crescent21Fri
22Sat4:157.95:495.511:25-0.611:004.26:1010:55Waxing Crescent22Sat
23Sun4:507.66:325.312:04-0.36:0910:57Waxing Crescent23Sun
24Mon5:297.27:205.112:470.16:0710:58Waxing Crescent24Mon
25Tue6:136.78:145.012:264.71:340.56:0611:00First Quarter25Tue
26Wed7:076.29:115.21:264.82:250.86:0511:01First Quarter26Wed
27Thu8:145.710:045.62:414.63:211.16:0311:03First Quarter27Thu
28Fri9:345.410:506.24:053.84:181.36:0211:04First Quarter28Fri
29Sat10:555.311:326.95:182.65:111.56:0111:06Waxing Gibbous29Sat
30Sun12:065.56:181.26:011.86:0011:07Waxing Gibbous30Sun
31Mon12:137.71:105.87:10-0.36:502.05:5911:09Waxing Gibbous31Mon
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 2:20 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 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