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

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 12m at 10:37 pm (0.5 ft)
Next high tide (tomorrow) : 4:30 am (8.2 ft)
Sunset today : 10:14 pm
Sunrise tomorrow : 7:07 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:195.89:246.83:411.43:455.06:396:12Waxing Gibbous1Sat
2Sun11:036.210:287.04:401.14:484.06:416:09Waxing Gibbous2Sun
3Mon11:366.611:177.25:230.85:333.06:436:07Waxing Gibbous3Mon
4Tue12:037.05:580.76:112.06:456:04Waxing Gibbous4Tue
5Wed12:277.36:270.76:431.26:476:01Full Moon5Wed
6Thu12:357.312:497.66:520.97:130.56:495:59Full Moon6Thu
7Fri1:087.21:117.97:161.37:430.16:515:56Full Moon7Fri
8Sat1:417.11:348.07:411.88:12-0.16:535:54Full Moon8Sat
9Sun2:146.81:588.18:072.48:440.06:555:51Waning Gibbous9Sun
10Mon2:486.52:248.18:333.09:180.26:575:49Waning Gibbous10Mon
11Tue3:246.12:537.99:013.79:560.76:595:46Waning Gibbous11Tue
12Wed4:065.73:277.79:314.410:421.27:015:44Waning Gibbous12Wed
13Thu4:585.24:107.310:065.111:391.77:035:41Third Quarter13Thu
14Fri6:124.95:096.910:595.77:055:39Third Quarter14Fri
15Sat8:004.96:316.612:532.012:295.97:075:36Third Quarter15Sat
16Sun9:175.48:056.62:171.82:185.47:095:34Third Quarter16Sun
17Mon10:016.09:257.03:271.23:414.17:115:31Waning Crescent17Mon
18Tue10:376.810:307.44:190.74:412.57:145:29Waning Crescent18Tue
19Wed11:127.711:267.75:030.35:320.77:165:26Waning Crescent19Wed
20Thu11:478.55:440.26:19-0.87:185:24New Moon20Thu
21Fri12:187.912:229.26:240.47:04-2.07:205:21New Moon21Fri
22Sat1:087.912:599.77:030.97:49-2.67:225:19New Moon22Sat
23Sun1:577.71:389.97:421.58:34-2.67:245:17Waxing Crescent23Sun
24Mon2:467.32:189.78:232.49:21-2.17:265:14Waxing Crescent24Mon
25Tue3:386.83:019.29:053.310:12-1.27:285:12Waxing Crescent25Tue
26Wed4:366.33:498.59:524.211:08-0.17:305:10First Quarter26Wed
27Thu5:435.84:457.710:475.07:325:07First Quarter27Thu
28Fri7:085.65:556.912:161.012:025.67:345:05First Quarter28Fri
29Sat8:345.77:266.31:381.61:575.57:375:03First Quarter29Sat
30Sun9:346.18:566.12:551.83:304.67:395:01Waxing Gibbous30Sun
31Mon10:166.510:046.23:521.84:293.57:414:58Waxing Gibbous31Mon
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 1:33 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 6% 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 (6% 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