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 3h 54m at 11:29 pm (3.2 ft)
Next high tide (tomorrow) : 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 - Aug 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:559.44:137.010:00-2.79:491.96:4210:42Full Moon1Sun
2Mon3:449.24:537.210:40-2.510:381.56:4410:40Waning Gibbous2Mon
3Tue4:318.75:317.411:18-2.011:261.36:4610:38Waning Gibbous3Tue
4Wed5:177.96:087.411:55-1.16:4810:36Waning Gibbous4Wed
5Thu6:047.06:457.312:151.312:310.06:5010:34Waning Gibbous5Thu
6Fri6:536.17:237.11:071.51:061.36:5210:32Third Quarter6Fri
7Sat7:485.28:056.92:031.81:442.66:5410:29Third Quarter7Sat
8Sun9:014.68:546.83:112.12:283.76:5610:27Third Quarter8Sun
9Mon10:494.39:556.74:342.23:274.76:5810:25Third Quarter9Mon
10Tue12:304.65:541.94:455.27:0010:23Waning Crescent10Tue
11Wed1:315.06:551.46:035.27:0110:20Waning Crescent11Wed
12Thu12:037.12:125.37:440.87:034.87:0310:18Waning Crescent12Thu
13Fri12:557.52:435.78:220.27:504.37:0510:16Waning Crescent13Fri
14Sat1:407.83:106.08:55-0.38:303.67:0710:14New Moon14Sat
15Sun2:208.03:376.39:25-0.79:073.07:0910:11New Moon15Sun
16Mon2:578.24:026.69:52-1.09:432.47:1110:09New Moon16Mon
17Tue3:338.14:296.810:20-1.110:191.87:1310:06New Moon17Tue
18Wed4:097.94:567.110:48-0.910:571.47:1510:04Waxing Crescent18Wed
19Thu4:467.55:247.311:18-0.411:391.17:1710:02Waxing Crescent19Thu
20Fri5:277.05:567.511:490.47:199:59Waxing Crescent20Fri
21Sat6:136.36:327.612:241.012:231.47:219:57First Quarter21Sat
22Sun7:075.67:167.71:171.11:022.57:239:54First Quarter22Sun
23Mon8:175.08:117.72:201.21:503.67:259:52First Quarter23Mon
24Tue9:584.69:227.73:401.32:574.57:279:49First Quarter24Tue
25Wed11:474.910:437.85:110.94:254.97:299:47Waxing Gibbous25Wed
26Thu1:005.46:280.15:534.57:319:44Waxing Gibbous26Thu
27Fri1:506.17:28-0.77:053.77:339:42Waxing Gibbous27Fri
28Sat1:038.62:306.78:16-1.48:032.67:359:39Full Moon28Sat
29Sun1:598.93:077.28:58-1.88:531.67:369:37Full Moon29Sun
30Mon2:488.93:427.69:36-1.89:390.87:389:34Full Moon30Mon
31Tue3:348.74:157.810:11-1.510:220.37:409:32Full Moon31Tue
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 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