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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 30m at 12:14 am (3.0 ft)
Next high tide : 5:53 am (6.7 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:104.88:406.52:332.92:143.06:4110:43Third Quarter1Thu
2Fri9:304.49:346.73:442.73:053.86:4310:41Third Quarter2Fri
3Sat11:094.410:347.05:032.34:114.46:4510:39Waning Crescent3Sat
4Sun12:344.76:121.55:214.66:4710:37Waning Crescent4Sun
5Mon1:325.27:070.66:264.46:4910:35Waning Crescent5Mon
6Tue12:307.92:165.77:55-0.47:233.96:5110:33Waning Crescent6Tue
7Wed1:228.42:556.18:37-1.38:143.26:5310:31New Moon7Wed
8Thu2:108.93:326.69:17-2.09:022.56:5510:28New Moon8Thu
9Fri2:579.14:087.09:56-2.49:491.76:5710:26New Moon9Fri
10Sat3:439.14:457.310:34-2.410:361.16:5910:24Waxing Crescent10Sat
11Sun4:308.75:247.611:13-2.011:260.87:0010:22Waxing Crescent11Sun
12Mon5:198.16:047.811:52-1.27:0210:19Waxing Crescent12Mon
13Tue6:107.36:467.812:190.612:33-0.27:0410:17First Quarter13Tue
14Wed7:086.47:337.81:160.71:171.17:0610:15First Quarter14Wed
15Thu8:165.58:277.72:221.02:062.47:0810:12First Quarter15Thu
16Fri9:465.09:327.53:421.13:073.67:1010:10First Quarter16Fri
17Sat11:295.010:447.55:090.94:254.37:1210:08Waxing Gibbous17Sat
18Sun12:505.36:230.55:474.57:1410:05Waxing Gibbous18Sun
19Mon1:465.87:230.06:574.27:1610:03Waxing Gibbous19Mon
20Tue12:527.92:296.28:11-0.47:513.77:1810:00Waxing Gibbous20Tue
21Wed1:438.13:046.58:51-0.78:353.17:209:58Full Moon21Wed
22Thu2:268.23:346.79:25-0.99:132.67:229:56Full Moon22Thu
23Fri3:048.24:026.89:55-0.89:482.17:249:53Full Moon23Fri
24Sat3:398.04:286.910:23-0.610:221.87:269:51Full Moon24Sat
25Sun4:137.74:547.010:49-0.210:561.67:289:48Waning Gibbous25Sun
26Mon4:477.35:207.011:160.411:321.67:309:46Waning Gibbous26Mon
27Tue5:226.85:477.011:431.17:329:43Waning Gibbous27Tue
28Wed5:596.26:187.012:101.712:122.07:349:41Waning Gibbous28Wed
29Thu6:415.66:526.912:522.012:432.97:359:38Third Quarter29Thu
30Fri7:335.07:366.81:422.31:203.87:379:35Third Quarter30Fri
31Sat8:484.68:336.72:462.52:104.67:399:33Third 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 3:03 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 (79% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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