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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:46 pm (-1.6 ft)
Next high tide : in 4h 07m at 5:47 am (8.0 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:157.74:028.110:141.210:38-1.29:286:11Waxing Crescent1Sat
2Sun4:498.04:507.311:030.911:13-0.29:266:13Waxing Crescent2Sun
3Mon5:278.15:436.411:570.911:511.19:246:15First Quarter3Mon
4Tue6:088.26:455.412:581.19:226:17First Quarter4Tue
5Wed6:578.18:124.712:342.52:131.39:206:19First Quarter5Wed
6Thu7:587.910:154.61:263.93:461.29:186:22First Quarter6Thu
7Fri9:137.811:545.12:414.95:130.79:166:24Waxing Gibbous7Fri
8Sat10:317.94:175.36:190.09:146:26Waxing Gibbous8Sat
9Sun12:535.611:40 AM8.25:434.97:10-0.69:126:28Waxing Gibbous9Sun
10Mon1:356.212:378.46:464.27:51-1.19:106:30Full Moon10Mon
11Tue2:106.61:248.57:363.48:27-1.39:086:33Full Moon11Tue
12Wed2:406.92:058.58:172.78:57-1.39:056:35Full Moon12Wed
13Thu3:087.12:428.38:542.19:25-1.19:036:37Full Moon13Thu
14Fri3:347.33:177.99:301.69:51-0.69:016:39Waning Gibbous14Fri
15Sat3:597.43:517.310:041.410:160.18:596:41Waning Gibbous15Sat
16Sun4:237.44:256.710:391.410:410.98:566:43Waning Gibbous16Sun
17Mon4:487.45:016.111:161.511:071.98:546:46Waning Gibbous17Mon
18Tue5:167.35:415.411:571.811:342.98:526:48Third Quarter18Tue
19Wed5:477.26:304.712:462.38:496:50Third Quarter19Wed
20Thu6:267.07:454.212:023.91:502.78:476:52Third Quarter20Thu
21Fri7:206.810:254.112:394.83:232.78:456:54Third Quarter21Fri
22Sat8:366.81:495.65:002.18:426:56Waning Crescent22Sat
23Sun12:044.610:00 AM7.03:405.86:011.18:406:59Waning Crescent23Sun
24Mon12:405.111:09 AM7.55:095.26:440.18:377:01Waning Crescent24Mon
25Tue1:085.712:068.06:124.37:20-0.98:357:03Waning Crescent25Tue
26Wed1:356.312:558.47:033.07:54-1.58:327:05New Moon26Wed
27Thu2:037.01:418.77:481.88:27-1.98:307:07New Moon27Thu
28Fri2:337.62:258.68:320.69:00-1.88:277:09New Moon28Fri
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 9:16 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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 (29% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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