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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 31m at 2:06 am (2.6 ft)
Next high tide : 7:42 am (6.1 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:449.04:437.010:34-2.410:271.56:5010:16Waning Gibbous1Fri
2Sat4:228.85:306.611:17-2.011:072.36:4810:18Waning Gibbous2Sat
3Sun5:018.46:196.212:00-1.36:4610:20Waning Gibbous3Sun
4Mon5:427.87:125.712:47-0.56:4410:22Waning Gibbous4Mon
5Tue6:267.18:135.412:353.91:380.46:4210:24Third Quarter5Tue
6Wed7:186.49:265.21:304.52:371.26:3910:26Third Quarter6Wed
7Thu8:245.810:395.32:444.83:481.76:3710:28Third Quarter7Thu
8Fri9:475.411:335.64:244.64:571.86:3510:29Third Quarter8Fri
9Sat11:075.45:433.85:511.86:3310:31Waning Crescent9Sat
10Sun12:136.012:115.66:372.86:341.76:3110:33Waning Crescent10Sun
11Mon12:466.51:035.87:191.87:111.76:2910:35Waning Crescent11Mon
12Tue1:167.01:476.07:550.97:451.76:2710:37Waning Crescent12Tue
13Wed1:467.42:286.28:300.08:191.76:2610:39New Moon13Wed
14Thu2:167.83:076.49:03-0.78:521.96:2410:41New Moon14Thu
15Fri2:478.23:466.49:38-1.39:272.16:2210:43New Moon15Fri
16Sat3:208.44:266.410:14-1.610:032.46:2010:45New Moon16Sat
17Sun3:558.55:086.310:53-1.710:412.86:1810:46Waxing Crescent17Sun
18Mon4:328.45:546.111:35-1.611:233.26:1710:48Waxing Crescent18Mon
19Tue5:158.16:455.912:21-1.36:1510:50Waxing Crescent19Tue
20Wed6:037.77:435.712:133.61:13-0.86:1310:52First Quarter20Wed
21Thu7:017.18:485.81:133.82:11-0.36:1210:53First Quarter21Thu
22Fri8:116.59:556.12:273.83:150.16:1010:55First Quarter22Fri
23Sat9:346.110:556.63:543.34:210.56:0910:57First Quarter23Sat
24Sun10:586.011:477.25:182.35:230.76:0710:58Waxing Gibbous24Sun
25Mon12:136.16:250.96:190.96:0611:00Waxing Gibbous25Mon
26Tue12:337.91:176.37:21-0.37:101.16:0511:01Waxing Gibbous26Tue
27Wed1:178.42:136.58:11-1.47:571.36:0311:03Full Moon27Wed
28Thu1:598.83:046.78:56-2.18:411.76:0211:04Full Moon28Thu
29Fri2:398.93:516.79:39-2.49:232.16:0111:06Full Moon29Fri
30Sat3:188.94:366.610:20-2.410:042.56:0011:07Full Moon30Sat
31Sun3:578.75:206.411:00-2.010:453.05:5911:09Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
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 4:54 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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