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 : in 37m at 12:08 pm (-0.7 ft)
Next high tide : 6:29 pm (6.2 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 - Jun 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:138.24:405.810:20-1.29:563.75:5911:09New Moon1Sun
2Mon3:468.15:195.710:55-1.210:323.95:5711:10Waxing Crescent2Mon
3Tue4:218.06:005.611:34-1.011:114.15:5711:12Waxing Crescent3Tue
4Wed5:007.76:445.512:15-0.85:5611:13Waxing Crescent4Wed
5Thu5:447.37:335.41:00-0.55:5511:14Waxing Crescent5Thu
6Fri6:366.88:255.612:534.31:49-0.15:5411:15First Quarter6Fri
7Sat7:386.29:205.92:014.12:420.35:5311:16First Quarter7Sat
8Sun8:535.710:126.53:203.53:390.85:5311:17First Quarter8Sun
9Mon10:185.511:027.24:412.44:371.25:5211:18Waxing Gibbous9Mon
10Tue11:385.511:497.95:501.05:331.65:5211:19Waxing Gibbous10Tue
11Wed12:505.76:50-0.46:272.05:5111:20Waxing Gibbous11Wed
12Thu12:368.61:536.07:44-1.77:202.35:5111:21Waxing Gibbous12Thu
13Fri1:249.12:496.38:35-2.68:112.55:5011:22Full Moon13Fri
14Sat2:119.43:426.59:23-3.19:012.75:5011:22Full Moon14Sat
15Sun2:589.54:316.510:11-3.29:502.85:5011:23Full Moon15Sun
16Mon3:469.35:216.510:57-2.910:393.05:5011:23Waning Gibbous16Mon
17Tue4:338.96:106.411:44-2.311:303.35:5011:24Waning Gibbous17Tue
18Wed5:228.26:596.212:30-1.55:5011:24Waning Gibbous18Wed
19Thu6:127.47:486.112:253.51:17-0.75:5011:25Third Quarter19Thu
20Fri7:056.58:396.11:263.72:030.35:5011:25Third Quarter20Fri
21Sat8:055.79:306.12:363.62:521.15:5011:25Third Quarter21Sat
22Sun9:185.010:186.33:573.33:431.95:5011:25Third Quarter22Sun
23Mon10:404.711:026.65:122.64:352.65:5111:26Waning Crescent23Mon
24Tue11:574.611:426.96:121.85:253.25:5111:26Waning Crescent24Tue
25Wed1:024.87:001.16:123.55:5211:26Waning Crescent25Wed
26Thu12:217.31:555.17:430.46:583.85:5211:25Waning Crescent26Thu
27Fri1:007.62:385.48:21-0.27:413.95:5311:25New Moon27Fri
28Sat1:387.93:175.68:57-0.78:233.95:5311:25New Moon28Sat
29Sun2:168.23:545.89:32-1.19:023.85:5411:25New Moon29Sun
30Mon2:548.34:305.910:07-1.49:413.75:5511:24New Moon30Mon
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 3:18 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 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