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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 52m at 4:41 am (2.0 ft)
Next high tide : 10:15 am (4.7 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Dec 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:418.15:342.96:400.29:435:07Waning Crescent1Sat
2Sun12:436.312:188.86:173.07:21-0.99:455:06New Moon2Sun
3Mon1:316.612:569.36:593.18:02-1.79:475:06New Moon3Mon
4Tue2:166.81:369.77:423.38:45-2.39:485:05New Moon4Tue
5Wed3:026.92:199.88:253.49:29-2.49:495:04New Moon5Wed
6Thu3:506.93:049.79:113.610:15-2.29:515:04Waxing Crescent6Thu
7Fri4:396.83:529.39:593.811:04-1.79:525:03Waxing Crescent7Fri
8Sat5:326.74:458.610:544.011:56-1.09:535:03Waxing Crescent8Sat
9Sun6:286.65:457.711:584.29:555:03First Quarter9Sun
10Mon7:286.76:556.812:51-0.11:154.19:565:02First Quarter10Mon
11Tue8:306.98:196.11:500.82:473.69:575:02First Quarter11Tue
12Wed9:287.39:495.72:531.64:122.69:585:02Waxing Gibbous12Wed
13Thu10:197.711:095.73:542.25:191.49:595:02Waxing Gibbous13Thu
14Fri11:048.14:502.86:120.410:005:02Waxing Gibbous14Fri
15Sat12:155.911:46 AM8.45:413.36:58-0.410:015:02Waxing Gibbous15Sat
16Sun1:106.112:258.76:273.67:39-0.910:025:02Full Moon16Sun
17Mon1:566.41:038.87:103.98:16-1.110:025:03Full Moon17Mon
18Tue2:366.51:398.87:494.18:51-1.110:035:03Full Moon18Tue
19Wed3:136.52:148.88:264.29:24-1.010:045:03Full Moon19Wed
20Thu3:496.52:498.69:024.39:58-0.710:045:04Waning Gibbous20Thu
21Fri4:246.43:248.29:394.410:32-0.410:055:04Waning Gibbous21Fri
22Sat4:596.24:007.810:174.511:070.110:055:05Waning Gibbous22Sat
23Sun5:366.14:397.211:004.611:440.610:065:05Waning Gibbous23Sun
24Mon6:146.15:236.611:484.710:065:06Third Quarter24Mon
25Tue6:556.16:145.912:221.212:464.610:065:07Third Quarter25Tue
26Wed7:406.37:195.31:041.81:564.310:065:08Third Quarter26Wed
27Thu8:296.68:425.01:512.53:153.610:065:09Third Quarter27Thu
28Fri9:187.010:105.02:463.14:262.610:065:10Waning Crescent28Fri
29Sat10:077.611:275.33:443.65:251.410:065:11Waning Crescent29Sat
30Sun10:558.24:433.96:160.110:065:12Waning Crescent30Sun
31Mon12:305.711:44 AM8.95:394.07:06-1.110:065:13Waning Crescent31Mon
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 7:28 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 69% 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 First Quarter (69% 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