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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 01m at 10:54 am (-2.8 ft)
Next high tide : 5:11 pm (7.1 ft)
Sunset today : 11:10 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:008.35:507.811:38-1.86:4210:42Waning Gibbous1Mon
2Tue5:517.56:308.012:010.512:16-0.76:4410:40Waning Gibbous2Tue
3Wed6:466.57:137.912:560.512:560.66:4610:38Third Quarter3Wed
4Thu7:485.58:017.81:580.71:392.16:4810:36Third Quarter4Thu
5Fri9:094.88:587.63:111.02:303.46:5010:34Third Quarter5Fri
6Sat10:574.610:067.44:381.13:374.46:5210:32Waning Crescent6Sat
7Sun12:344.86:000.95:035.06:5310:30Waning Crescent7Sun
8Mon1:385.37:050.46:244.96:5510:27Waning Crescent8Mon
9Tue12:237.62:225.77:560.07:264.46:5710:25Waning Crescent9Tue
10Wed1:177.82:576.08:37-0.48:133.86:5910:23New Moon10Wed
11Thu2:028.03:256.29:11-0.78:523.27:0110:21New Moon11Thu
12Fri2:408.03:516.49:41-0.89:272.77:0310:18New Moon12Fri
13Sat3:168.04:156.610:07-0.810:002.27:0510:16New Moon13Sat
14Sun3:497.84:386.810:31-0.610:341.87:0710:14Waxing Crescent14Sun
15Mon4:227.45:026.910:56-0.111:081.67:0910:12Waxing Crescent15Mon
16Tue4:556.95:267.011:210.511:441.67:1110:09Waxing Crescent16Tue
17Wed5:306.45:537.111:471.37:1310:07Waxing Crescent17Wed
18Thu6:095.86:237.112:231.712:152.17:1510:04First Quarter18Thu
19Fri6:545.27:007.11:081.912:453.17:1710:02First Quarter19Fri
20Sat7:534.67:477.12:042.11:224.07:1910:00First Quarter20Sat
21Sun9:264.38:527.13:172.22:174.87:219:57First Quarter21Sun
22Mon11:324.410:137.34:481.93:475.37:239:55Waxing Gibbous22Mon
23Tue12:484.96:091.05:205.07:259:52Waxing Gibbous23Tue
24Wed1:335.67:080.06:354.27:269:50Waxing Gibbous24Wed
25Thu12:368.32:116.27:55-1.07:363.07:289:47Waxing Gibbous25Thu
26Fri1:338.82:466.98:36-1.88:291.77:309:45Full Moon26Fri
27Sat2:259.03:217.69:15-2.19:180.57:329:42Full Moon27Sat
28Sun3:149.03:568.19:52-2.010:05-0.47:349:40Full Moon28Sun
29Mon4:028.64:328.510:28-1.510:52-0.97:369:37Waning Gibbous29Mon
30Tue4:508.05:098.711:05-0.511:41-0.97:389:34Waning Gibbous30Tue
31Wed5:397.25:488.611:420.77:409:32Waning Gibbous31Wed
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 2:02 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 8% 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 Waxing Crescent (8% 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