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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:49 am (-1.6 ft)
Next high tide : in 2h 12m at 12:17 am (8.8 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 - Mar 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:347.28:004.412:133.91:552.18:267:11First Quarter1Mon
2Tue7:417.09:544.51:134.53:211.98:237:13First Quarter2Tue
3Wed9:037.111:135.12:444.84:421.28:207:15Waxing Gibbous3Wed
4Thu10:237.44:174.45:420.28:187:17Waxing Gibbous4Thu
5Fri12:035.811:29 AM7.95:313.36:31-0.68:157:19Waxing Gibbous5Fri
6Sat12:436.612:278.36:312.07:14-1.38:137:21Full Moon6Sat
7Sun1:217.51:198.67:230.67:54-1.68:107:23Full Moon7Sun
8Mon1:588.22:088.78:11-0.68:32-1.58:087:25Full Moon8Mon
9Tue2:358.82:568.48:58-1.49:11-1.18:057:28Full Moon9Tue
10Wed3:139.13:437.99:44-1.79:49-0.38:037:30Waning Gibbous10Wed
11Thu3:529.24:327.310:31-1.610:290.78:007:32Waning Gibbous11Thu
12Fri4:338.95:236.511:21-0.911:101.87:577:34Waning Gibbous12Fri
13Sat5:188.46:215.712:150.07:557:36Third Quarter13Sat
14Sun6:077.87:345.11:190.97:527:38Third Quarter14Sun
15Mon7:077.19:174.912:524.02:441.67:507:40Third Quarter15Mon
16Tue8:276.610:475.12:114.74:151.67:477:42Third Quarter16Tue
17Wed9:556.511:455.64:024.75:221.47:447:44Waning Crescent17Wed
18Thu11:076.65:224.06:111.07:427:46Waning Crescent18Thu
19Fri12:256.012:016.86:153.26:490.77:397:48Waning Crescent19Fri
20Sat12:556.412:447.06:572.37:200.67:367:50Waning Crescent20Sat
21Sun1:216.81:227.17:321.57:470.57:347:52New Moon21Sun
22Mon1:467.21:567.18:030.88:120.67:317:54New Moon22Mon
23Tue2:107.52:297.18:330.38:380.87:297:56New Moon23Tue
24Wed2:357.73:016.99:04-0.19:041.27:267:58New Moon24Wed
25Thu3:017.93:346.79:35-0.29:321.67:238:00Waxing Crescent25Thu
26Fri3:288.04:096.310:09-0.110:012.27:218:02Waxing Crescent26Fri
27Sat3:587.94:475.910:470.110:332.87:188:04Waxing Crescent27Sat
28Sun4:327.85:315.411:290.511:093.47:158:06Waxing Crescent28Sun
29Mon5:137.56:275.012:200.97:138:08First Quarter29Mon
30Tue6:047.27:434.81:231.27:108:10First Quarter30Tue
31Wed7:116.89:154.91:034.42:381.37:088:12First Quarter31Wed
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 4:03 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