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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 6:15 pm (5.0 ft)
Next high tide : in 2h 36m at 1:47 pm (4.9 ft)
Sunset today : 10:56 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:418.14:356.210:27-0.410:212.56:077:13Waxing Crescent1Sun
2Mon4:227.65:295.611:160.511:063.56:047:15First Quarter2Mon
3Tue5:087.06:385.112:141.46:017:17First Quarter3Tue
4Wed6:046.48:134.912:024.31:292.05:597:19First Quarter4Wed
5Thu7:196.09:355.11:224.82:562.15:567:21First Quarter5Thu
6Fri8:445.910:285.53:064.64:021.95:547:23Waxing Gibbous6Fri
7Sat9:546.111:055.94:183.94:501.55:517:25Waxing Gibbous7Sat
8Sun10:486.411:356.45:073.05:281.25:487:27Waxing Gibbous8Sun
9Mon11:326.65:462.16:000.95:467:29Waxing Gibbous9Mon
10Tue12:036.912:116.96:211.26:300.75:437:31Full Moon10Tue
11Wed12:307.312:487.06:540.46:590.75:417:33Full Moon11Wed
12Thu12:587.71:247.17:26-0.27:290.85:387:35Full Moon12Thu
13Fri1:268.02:017.08:00-0.78:011.05:367:37Full Moon13Fri
14Sat1:568.22:386.88:36-0.98:341.45:337:39Waning Gibbous14Sat
15Sun2:298.23:196.59:14-1.09:102.05:317:41Waning Gibbous15Sun
16Mon3:048.14:056.29:57-0.89:502.65:287:43Waning Gibbous16Mon
17Tue3:467.94:585.810:45-0.410:383.25:267:45Waning Gibbous17Tue
18Wed4:357.56:035.511:420.111:383.75:237:47Third Quarter18Wed
19Thu5:357.17:225.412:490.55:217:50Third Quarter19Thu
20Fri6:526.78:415.812:564.02:050.65:187:52Third Quarter20Fri
21Sat8:196.59:446.42:273.53:180.55:167:54Waning Crescent21Sat
22Sun9:396.710:357.13:492.54:190.25:137:56Waning Crescent22Sun
23Mon10:467.011:197.74:541.25:110.05:117:58Waning Crescent23Mon
24Tue11:447.35:47-0.15:57-0.15:088:00New Moon24Tue
25Wed12:018.312:357.46:35-1.16:390.15:068:02New Moon25Wed
26Thu12:398.71:227.47:19-1.87:190.45:048:04New Moon26Thu
27Fri1:178.82:077.28:00-2.17:581.05:018:06New Moon27Fri
28Sat1:548.82:506.98:41-2.08:361.64:598:08Waxing Crescent28Sat
29Sun3:318.54:346.610:21-1.510:142.35:579:10Waxing Crescent29Sun
30Mon4:088.05:206.111:02-0.810:553.15:559:12Waxing Crescent30Mon
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 4:01 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 87% 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 (87% 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