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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 22m at 3:47 pm (3.3 ft)
Next high tide : 10:13 pm (7.8 ft)
Sunset today : 11:18 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:436.612:446.96:541.87:090.67:048:15Waxing Gibbous1Mon
2Tue1:127.11:237.27:300.87:410.47:028:17Full Moon2Tue
3Wed1:417.62:027.38:050.08:120.46:598:19Full Moon3Wed
4Thu2:118.02:407.38:41-0.78:450.56:568:21Full Moon4Thu
5Fri2:428.33:197.29:18-1.19:190.96:548:23Waning Gibbous5Fri
6Sat3:168.54:016.99:58-1.39:561.36:518:25Waning Gibbous6Sat
7Sun4:538.55:476.511:41-1.211:362.07:499:27Waning Gibbous7Sun
8Mon5:348.36:396.112:29-0.87:469:29Waning Gibbous8Mon
9Tue6:227.97:415.712:232.71:25-0.27:449:31Third Quarter9Tue
10Wed7:207.48:575.51:193.32:300.37:419:33Third Quarter10Wed
11Thu8:326.910:215.72:313.83:470.77:389:35Third Quarter11Thu
12Fri9:596.611:316.24:023.75:040.67:369:37Waning Crescent12Fri
13Sat11:226.75:322.96:090.47:339:39Waning Crescent13Sat
14Sun12:266.812:326.96:411.77:020.27:319:41Waning Crescent14Sun
15Mon1:117.41:307.17:360.57:480.17:289:43Waning Crescent15Mon
16Tue1:527.92:207.38:23-0.58:290.27:269:45New Moon16Tue
17Wed2:298.33:067.39:05-1.29:070.57:239:47New Moon17Wed
18Thu3:058.53:487.29:44-1.59:430.97:219:49New Moon18Thu
19Fri3:398.54:287.010:22-1.510:171.57:189:51Waxing Crescent19Fri
20Sat4:128.45:086.610:59-1.210:522.17:169:53Waxing Crescent20Sat
21Sun4:468.15:486.211:36-0.711:282.77:149:55Waxing Crescent21Sun
22Mon5:217.66:315.812:16-0.17:119:57Waxing Crescent22Mon
23Tue6:007.17:195.412:073.412:590.67:099:59First Quarter23Tue
24Wed6:446.68:175.112:514.01:481.37:0610:01First Quarter24Wed
25Thu7:376.09:295.01:474.42:471.87:0410:03First Quarter25Thu
26Fri8:475.610:395.33:034.63:562.17:0210:05First Quarter26Fri
27Sat10:105.411:325.74:354.25:012.16:5910:07First Quarter27Sat
28Sun11:245.55:483.45:541.96:5710:09Waxing Gibbous28Sun
29Mon12:136.212:245.86:402.36:391.66:5510:11Waxing Gibbous29Mon
30Tue12:496.81:156.27:231.27:191.46:5310:13Waxing Gibbous30Tue
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 7:00 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 28% 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 Crescent (28% 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