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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 11m at 7:13 pm (4.7 ft)
Next high tide (tomorrow) : 1:10 am (7.6 ft)
Sunset today : 10:54 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:097.111:467.25:171.95:400.26:057:14Waxing Gibbous1Fri
2Sat11:587.56:020.66:19-0.26:037:16Full Moon2Sat
3Sun12:217.912:447.86:46-0.66:57-0.36:007:18Full Moon3Sun
4Mon12:578.51:297.87:28-1.57:36-0.25:577:20Full Moon4Mon
5Tue1:358.92:157.78:12-2.18:150.25:557:22Waning Gibbous5Tue
6Wed2:149.13:037.48:57-2.28:570.85:527:24Waning Gibbous6Wed
7Thu2:569.03:536.99:45-1.99:411.65:507:26Waning Gibbous7Thu
8Fri3:428.74:506.310:37-1.310:312.45:477:28Waning Gibbous8Fri
9Sat4:338.15:555.811:35-0.411:313.25:457:30Third Quarter9Sat
10Sun5:337.47:145.612:440.45:427:32Third Quarter10Sun
11Mon6:486.88:385.712:473.82:050.85:397:34Third Quarter11Mon
12Tue8:166.49:466.12:263.73:210.95:377:36Waning Crescent12Tue
13Wed9:376.410:376.63:513.04:220.85:347:38Waning Crescent13Wed
14Thu10:416.511:187.04:532.05:100.85:327:40Waning Crescent14Thu
15Fri11:346.711:537.45:421.15:510.85:297:42Waning Crescent15Fri
16Sat12:186.86:230.36:260.95:277:44New Moon16Sat
17Sun12:247.712:576.86:59-0.36:571.15:247:46New Moon17Sun
18Mon12:537.91:336.87:31-0.67:271.45:227:48New Moon18Mon
19Tue1:228.02:076.78:03-0.87:571.85:197:51New Moon19Tue
20Wed1:508.02:416.58:35-0.78:272.25:177:53Waxing Crescent20Wed
21Thu2:207.93:166.29:08-0.58:592.75:157:55Waxing Crescent21Thu
22Fri2:517.73:545.89:43-0.19:343.25:127:57Waxing Crescent22Fri
23Sat3:267.34:365.510:230.310:123.75:107:59Waxing Crescent23Sat
24Sun5:056.96:255.212:070.86:079:01First Quarter24Sun
25Mon5:526.57:265.112:591.36:059:03First Quarter25Mon
26Tue6:516.08:375.21:014.42:001.66:039:05First Quarter26Tue
27Wed8:065.89:425.62:214.33:071.66:009:07First Quarter27Wed
28Thu9:285.810:346.23:453.64:101.55:589:09Waxing Gibbous28Thu
29Fri10:416.011:196.94:542.45:041.25:569:11Waxing Gibbous29Fri
30Sat11:436.45:501.15:540.95:539:13Waxing Gibbous30Sat
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 10:11 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 93% 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 Gibbous (93% 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