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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 5:43 am (0.4 ft)
Next high tide (tomorrow) : in 6m at 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 - Sep 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:115.87:167.81:140.81:042.77:419:31First Quarter1Fri
2Sat8:245.38:197.62:191.12:033.57:439:29First Quarter2Sat
3Sun9:575.29:377.53:381.33:204.07:459:26First Quarter3Sun
4Mon11:275.510:587.65:041.04:493.97:469:23Waxing Gibbous4Mon
5Tue12:326.16:150.36:083.27:489:21Waxing Gibbous5Tue
6Wed12:097.91:226.77:11-0.37:122.27:509:18Waxing Gibbous6Wed
7Thu1:098.22:047.37:58-0.78:051.27:529:16Full Moon7Thu
8Fri2:028.42:437.88:39-0.98:520.47:549:13Full Moon8Fri
9Sat2:498.43:198.29:17-0.89:34-0.27:569:10Full Moon9Sat
10Sun3:328.23:538.39:52-0.410:15-0.47:589:08Full Moon10Sun
11Mon4:137.94:268.310:260.210:54-0.38:009:05Waning Gibbous11Mon
12Tue4:547.45:008.111:001.011:330.18:029:02Waning Gibbous12Tue
13Wed5:346.85:347.811:331.98:049:00Waning Gibbous13Wed
14Thu6:176.26:107.412:140.812:092.88:068:57Third Quarter14Thu
15Fri7:045.66:527.012:591.512:483.78:088:54Third Quarter15Fri
16Sat8:045.17:446.61:532.21:364.58:108:52Third Quarter16Sat
17Sun9:324.88:536.33:022.72:435.08:128:49Third Quarter17Sun
18Mon11:095.010:166.24:322.74:155.18:148:47Third Quarter18Mon
19Tue12:095.45:452.45:394.58:158:44Waning Crescent19Tue
20Wed12:485.96:341.86:363.78:178:41Waning Crescent20Wed
21Thu12:236.81:206.47:131.37:202.78:198:39Waning Crescent21Thu
22Fri1:107.21:507.07:470.87:591.78:218:36Waning Crescent22Fri
23Sat1:527.52:207.58:190.58:360.88:238:33New Moon23Sat
24Sun2:327.72:508.08:510.49:140.08:258:31New Moon24Sun
25Mon3:127.83:228.49:240.49:52-0.68:278:28New Moon25Mon
26Tue3:527.83:568.79:590.710:32-0.98:298:25Waxing Crescent26Tue
27Wed4:347.54:328.810:351.211:15-0.98:318:23Waxing Crescent27Wed
28Thu5:197.15:128.711:141.88:338:20Waxing Crescent28Thu
29Fri6:106.65:588.412:03-0.611:58 AM2.68:358:17Waxing Crescent29Fri
30Sat7:096.16:537.912:570.012:503.48:378:15First Quarter30Sat
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 1:58 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 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