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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 25m at 6:50 am (-0.6 ft)
Next high tide : 1:14 pm (5.1 ft)
Sunset today : 11:16 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:168.46:325.812:17-0.57:068:14Third Quarter1Fri
2Sat6:117.77:485.412:063.11:230.47:038:16Third Quarter2Sat
3Sun8:197.010:195.41:133.93:441.08:009:18Third Quarter3Sun
4Mon9:456.511:345.73:474.25:061.27:589:20Third Quarter4Mon
5Tue11:116.35:263.76:101.17:559:22Waning Crescent5Tue
6Wed12:286.112:196.46:342.86:591.07:539:24Waning Crescent6Wed
7Thu1:096.61:146.67:251.97:390.97:509:26Waning Crescent7Thu
8Fri1:437.01:586.78:061.18:130.97:479:28Waning Crescent8Fri
9Sat2:127.32:376.88:410.48:431.17:459:30New Moon9Sat
10Sun2:397.63:126.89:13-0.19:111.37:429:32New Moon10Sun
11Mon3:067.83:456.79:43-0.59:391.67:409:34New Moon11Mon
12Tue3:337.94:186.610:14-0.610:082.07:379:36New Moon12Tue
13Wed4:018.04:516.310:46-0.510:372.47:359:38Waxing Crescent13Wed
14Thu4:307.95:276.011:20-0.311:092.97:329:40Waxing Crescent14Thu
15Fri5:037.76:065.611:580.111:443.47:309:42Waxing Crescent15Fri
16Sat5:397.46:525.312:400.57:279:44Waxing Crescent16Sat
17Sun6:217.07:485.012:253.81:300.97:259:46First Quarter17Sun
18Mon7:156.58:585.01:184.22:281.37:229:48First Quarter18Mon
19Tue8:246.210:135.32:314.43:361.47:209:50First Quarter19Tue
20Wed9:476.011:135.93:584.04:451.37:179:52First Quarter20Wed
21Thu11:086.25:193.05:441.07:159:54Waxing Gibbous21Thu
22Fri12:016.612:176.56:241.66:360.77:129:56Waxing Gibbous22Fri
23Sat12:457.51:176.97:190.17:240.57:109:58Waxing Gibbous23Sat
24Sun1:288.32:117.28:09-1.38:100.57:0810:00Full Moon24Sun
25Mon2:108.93:027.48:57-2.48:540.67:0510:02Full Moon25Mon
26Tue2:539.43:517.49:43-3.09:380.97:0310:04Full Moon26Tue
27Wed3:369.54:417.210:29-3.110:231.37:0110:06Waning Gibbous27Wed
28Thu4:209.45:326.911:17-2.711:091.96:5810:08Waning Gibbous28Thu
29Fri5:078.96:256.512:06-2.06:5610:10Waning Gibbous29Fri
30Sat5:578.27:236.112:002.612:59-1.16:5410:12Third Quarter30Sat
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 10:02 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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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