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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 10:52 pm (1.7 ft)
Next high tide : in 2h 37m at 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 - Mar 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:476.21:037.67:203.48:00-0.38:257:11Full Moon1Tue
2Wed2:096.51:397.77:532.68:24-0.48:227:13Full Moon2Wed
3Thu2:306.82:127.78:241.88:47-0.48:207:16Full Moon3Thu
4Fri2:517.12:447.58:551.29:10-0.28:177:18Full Moon4Fri
5Sat3:127.43:167.29:260.89:340.38:157:20Waning Gibbous5Sat
6Sun3:357.63:496.89:590.59:591.08:127:22Waning Gibbous6Sun
7Mon3:597.84:256.310:340.510:261.88:107:24Waning Gibbous7Mon
8Tue4:277.85:055.811:130.610:542.68:077:26Waning Gibbous8Tue
9Wed4:597.85:535.112:001.08:057:28Third Quarter9Wed
10Thu5:407.77:004.612:591.48:027:30Third Quarter10Thu
11Fri6:347.48:534.312:074.42:181.67:597:32Third Quarter11Fri
12Sat7:507.210:524.71:195.13:551.27:577:34Third Quarter12Sat
13Sun9:247.311:495.33:095.35:130.47:547:36Waning Crescent13Sun
14Mon10:477.64:474.56:09-0.57:527:38Waning Crescent14Mon
15Tue12:306.111:53 AM8.15:593.16:54-1.37:497:40Waning Crescent15Tue
16Wed1:056.912:508.46:561.57:34-1.67:467:42New Moon16Wed
17Thu1:407.71:418.57:460.18:11-1.67:447:44New Moon17Thu
18Fri2:148.32:298.38:32-1.08:47-1.27:417:46New Moon18Fri
19Sat2:488.83:157.99:16-1.79:22-0.47:397:49Waxing Crescent19Sat
20Sun3:229.04:007.310:00-1.89:570.67:367:51Waxing Crescent20Sun
21Mon3:588.94:476.610:44-1.410:321.87:337:53Waxing Crescent21Mon
22Tue4:348.55:375.811:30-0.611:083.07:317:55Waxing Crescent22Tue
23Wed5:138.06:365.112:220.47:287:57First Quarter23Wed
24Thu5:587.38:034.61:271.47:257:59First Quarter24Thu
25Fri6:566.710:144.612:405.13:022.07:238:01First Quarter25Fri
26Sat8:216.211:275.02:075.74:351.97:208:03First Quarter26Sat
27Sun9:576.14:205.45:361.57:178:05Waxing Gibbous27Sun
28Mon12:085.411:08 AM6.35:344.56:181.17:158:07Waxing Gibbous28Mon
29Tue12:365.811:59 AM6.66:213.56:500.77:128:09Waxing Gibbous29Tue
30Wed12:596.212:416.86:582.47:170.57:108:11Waxing Gibbous30Wed
31Thu1:206.71:196.97:311.47:420.57:078:13Full Moon31Thu
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 8:01 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