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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:13 pm (3.6 ft)
Next high tide : in 5h 51m at 2:05 pm (5.9 ft)
Sunset today : 10:23 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:105.810:006.73:322.73:411.34:538:13Waxing Gibbous1Sun
2Mon10:205.910:417.14:351.64:311.54:508:15Waxing Gibbous2Mon
3Tue11:176.011:177.55:240.75:131.74:488:17Waxing Gibbous3Tue
4Wed12:056.16:06-0.15:512.04:468:19Full Moon4Wed
5Thu12:466.26:43-0.66:252.34:448:21Full Moon5Thu
6Fri12:208.01:246.27:16-1.06:572.54:428:23Full Moon6Fri
7Sat12:508.11:596.27:48-1.17:292.84:408:25Full Moon7Sat
8Sun1:218.12:346.18:20-1.08:023.14:388:27Full Moon8Sun
9Mon1:528.03:105.98:54-0.88:353.44:368:29Waning Gibbous9Mon
10Tue2:257.83:475.79:29-0.59:113.64:348:31Waning Gibbous10Tue
11Wed3:017.54:285.510:07-0.19:513.94:328:33Waning Gibbous11Wed
12Thu3:407.15:145.310:490.310:394.14:308:35Waning Gibbous12Thu
13Fri4:256.66:055.311:350.711:384.24:288:37Third Quarter13Fri
14Sat5:206.07:015.412:261.14:268:39Third Quarter14Sat
15Sun6:295.67:575.812:524.01:231.44:248:41Third Quarter15Sun
16Mon7:505.38:486.42:133.32:221.74:228:42Third Quarter16Mon
17Tue9:115.49:357.13:252.13:181.84:208:44Waning Crescent17Tue
18Wed10:215.710:207.94:250.74:111.94:198:46Waning Crescent18Wed
19Thu11:226.011:068.65:18-0.75:022.04:178:48Waning Crescent19Thu
20Fri12:186.46:08-1.95:522.04:158:50New Moon20Fri
21Sat1:106.66:56-2.86:412.04:148:51New Moon21Sat
22Sun12:389.61:596.87:43-3.37:292.14:128:53New Moon22Sun
23Mon1:269.62:496.88:31-3.38:182.24:108:55Waxing Crescent23Mon
24Tue2:149.43:406.79:19-3.09:102.44:098:56Waxing Crescent24Tue
25Wed3:058.94:326.610:08-2.310:062.74:078:58Waxing Crescent25Wed
26Thu3:588.15:266.410:58-1.511:082.94:069:00First Quarter26Thu
27Fri4:567.26:226.411:50-0.54:059:01First Quarter27Fri
28Sat6:006.27:216.512:213.012:450.54:039:03First Quarter28Sat
29Sun7:165.58:176.61:452.81:441.44:029:04First Quarter29Sun
30Mon8:405.19:086.93:062.12:432.14:019:06Waxing Gibbous30Mon
31Tue9:575.09:537.14:101.33:372.64:009:07Waxing Gibbous31Tue
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 4:39 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 5% 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 (5% 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